Il lun 24 lug 2017, 19:54 Venkateswara Rao Jujjuri <jujj...@gmail.com> ha scritto:
> On Mon, Jul 24, 2017 at 3:06 AM, Enrico Olivelli <eolive...@gmail.com> > wrote: > > > 2017-07-21 20:37 GMT+02:00 Enrico Olivelli <eolive...@gmail.com>: > > > > > > > > > > > Il ven 21 lug 2017, 20:32 Sijie Guo <guosi...@gmail.com> ha scritto: > > > > > >> As the discussion in a separate thread, it might be making sense to > > check > > >> what is the difference between using pooled allocator and unpooled > > >> allocator using v3 protocol. Also considering comparing using heap > > buffer > > >> and direct buffer as well. > > >> > > >> I am suspecting this might contribute latency. > > >> > > > > > > Yep, I am looking in this direction too. > > > I see that many frequent writes lead to an huge use of non heap memory, > > > even bounding the JVM with MaxDirectMemory with max 1GB all, the 12GB > of > > my > > > laptop blow away during the run of my benchmark. > > > I suspect it is something in direct memory or something in SO caches. > > > I am not very skilled in SO linux memory diagnostics > > > > > > > > > I wrote a new "write intensive" benchmark, and the only thing I have > > noticed is that Linux is using as much RAM as possible for disk caches, > > this is the expected behavior on Linux. > > > > Yes, and this is good behavior. Why keep something unused? > Yes this is why linux is better then other OSs, like Windows. > > > > This is not memory allocated to the process itself. > > There is no difference from 4.4 and 4.5 from this aspect. > > > > I have tried the journalRemoveFromPageCachebut it brings no improvement. > > > > I did some tests as suggested by Flavio, separating the client and the > > bookie (even on different machines). I can say there is no "leak" nor on > > client side neither on bookie side. > > > > > > finally during my benchmarks I noticed that the real "performance drop" > > happens after this lines of log > > > > lug 24, 2017 12:00:56 PM org.apache.bookkeeper.bookie.EntryLogger > > flushRotatedLogs > > INFO: Synced entry logger 0 to disk > > > > I am now investigating why after the first "flushRotatedLogs" bookie is > > slowing down > > > > > Thanks for the update. Eager to learn what is the culprit. > > JV > > > > > > Enrico > > > > > > > > > > > > > > Enrico > > > > > > > > > > > >> > > >> > > >> > > >> - Sijie > > >> > > >> On Thu, Jul 20, 2017 at 4:49 AM, Enrico Olivelli <eolive...@gmail.com > > > > >> wrote: > > >> > > >> > Kishore, do you have news? > > >> > > > >> > Il ven 14 lug 2017, 09:05 Enrico Olivelli <eolive...@gmail.com> ha > > >> > scritto: > > >> > > > >> > > At the meeting we told the Kishore will perform some benchmarks on > > his > > >> > > side. > > >> > > He will take a look at my code, and we are going to share the > > results. > > >> > > Maybe it will be possible to share the results of benchmarks done > > from > > >> > > Kishore at Salesforce too. > > >> > > > > >> > > The primary goal is to understand the differences between 4.4 and > > 4.5, > > >> > for > > >> > > instance if we there is a need to change JVM/BK configuration in > > >> order to > > >> > > make 4.5 perform as 4.4. > > >> > > > > >> > > @Sijie I hope I have answered your questions. > > >> > > > > >> > > > > >> > > -- Enrico > > >> > > > > >> > > > > >> > > 2017-07-13 9:29 GMT+02:00 Enrico Olivelli <eolive...@gmail.com>: > > >> > > > > >> > >> > > >> > >> > > >> > >> 2017-07-13 4:11 GMT+02:00 Sijie Guo <guosi...@gmail.com>: > > >> > >> > > >> > >>> On Wed, Jul 12, 2017 at 10:35 PM, Enrico Olivelli < > > >> eolive...@gmail.com > > >> > > > > >> > >>> wrote: > > >> > >>> > > >> > >>> > Sijie, JV, just a recap my point of view: > > >> > >>> > - considering latency = "time for asynchAddEntry to complete" > > >> > >>> > - there is a some difference from 4.4 and 4.5 in the usage of > > >> memory, > > >> > >>> but > > >> > >>> > no so clear > > >> > >>> > - the type of GC (parallel vs G1) does not impact very much > but > > >> with > > >> > >>> G1 you > > >> > >>> > achieve best latency > > >> > >>> > > > >> > >>> > > >> > >>> Did you try CMS for v3 protocol? > > >> > >>> > > >> > >> > > >> > >> BK 4.5 + v3 procotol + CMS + throttle = 0 > > >> > >> > > >> > >> #0 Total wall clock time: 309.0 ms, total callbacks time: 249753 > > ms, > > >> > >> entry size 0,034 MB -> 249,75 ms per entry (latency),0,3 ms per > > entry > > >> > >> (throughput) 110,6 MB/s throughput > > >> > >> #1 Total wall clock time: 192.0 ms, total callbacks time: 156268 > > ms, > > >> > >> entry size 0,034 MB -> 156,27 ms per entry (latency),0,2 ms per > > entry > > >> > >> (throughput) 178,0 MB/s throughput > > >> > >> #2 Total wall clock time: 129.0 ms, total callbacks time: 95279 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 95,28 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 265,0 MB/s throughput > > >> > >> #3 Total wall clock time: 125.0 ms, total callbacks time: 94661 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 94,66 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 273,4 MB/s throughput > > >> > >> #4 Total wall clock time: 112.0 ms, total callbacks time: 83015 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 83,02 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 305,2 MB/s throughput > > >> > >> #5 Total wall clock time: 111.0 ms, total callbacks time: 82839 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 82,84 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 307,9 MB/s throughput > > >> > >> #6 Total wall clock time: 114.0 ms, total callbacks time: 82562 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 82,56 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 299,8 MB/s throughput > > >> > >> #7 Total wall clock time: 104.0 ms, total callbacks time: 74356 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 74,36 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 328,7 MB/s throughput > > >> > >> #8 Total wall clock time: 110.0 ms, total callbacks time: 83488 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 83,49 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 310,7 MB/s throughput > > >> > >> #9 Total wall clock time: 102.0 ms, total callbacks time: 68787 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 68,79 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 335,1 MB/s throughput > > >> > >> > > >> > >> gc.log > > >> > >> Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > JRE > > >> > >> (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with > > gcc > > >> > 4.3.0 > > >> > >> 20080428 (Red Hat 4.3.0-8) > > >> > >> Memory: 4k page, physical 32870636k(3276148k free), swap > > >> > >> 15622140k(15460604k free) > > >> > >> CommandLine flags: -XX:+CMSIncrementalMode > > >> > -XX:InitialHeapSize=2147483648 <%28214%29%20748-3648> > > >> > >> <(214)%20748-3648> -XX:MaxHeapSize=2147483648 > > <%28214%29%20748-3648> > > >> <(214)%20748-3648> > > >> > >> -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 > > >> > -XX:NewSize=697933824 > > >> > >> -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC > > >> > >> -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers > > >> > >> -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC > > >> > >> 0,630: [GC (Allocation Failure) 545344K->8508K(2029056K), > > 0,0065802 > > >> > secs] > > >> > >> 1,196: [GC (Allocation Failure) 553852K->117940K(2029056K), > > >> 0,0385576 > > >> > >> secs] > > >> > >> 1,235: [GC (CMS Initial Mark) 119486K(2029056K), 0,0022661 secs] > > >> > >> 1,544: [GC (Allocation Failure) 663284K->207833K(2029056K), > > >> 0,0330904 > > >> > >> secs] > > >> > >> 1,731: [GC (CMS Final Remark) 560308K(2029056K), 0,0105624 secs] > > >> > >> 1,837: [GC (Allocation Failure) 753177K->214147K(2029056K), > > >> 0,0105574 > > >> > >> secs] > > >> > >> 2,115: [GC (Allocation Failure) 759491K->241263K(2029056K), > > >> 0,0166134 > > >> > >> secs] > > >> > >> > > >> > >> > > >> > >> BK 4.5 + v2 protocol + CMS + throttle = 0 > > >> > >> > > >> > >> #0 Total wall clock time: 198.0 ms, total callbacks time: 169954 > > ms, > > >> > >> entry size 0,034 MB -> 169,95 ms per entry (latency),0,2 ms per > > entry > > >> > >> (throughput) 172,6 MB/s throughput > > >> > >> #1 Total wall clock time: 106.0 ms, total callbacks time: 70885 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 70,89 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 322,4 MB/s throughput > > >> > >> #2 Total wall clock time: 109.0 ms, total callbacks time: 71848 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 71,85 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 313,6 MB/s throughput > > >> > >> #3 Total wall clock time: 97.0 ms, total callbacks time: 73583 > ms, > > >> entry > > >> > >> size 0,034 MB -> 73,58 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 352,4 MB/s throughput > > >> > >> #4 Total wall clock time: 91.0 ms, total callbacks time: 61293 > ms, > > >> entry > > >> > >> size 0,034 MB -> 61,29 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 375,6 MB/s throughput > > >> > >> #5 Total wall clock time: 98.0 ms, total callbacks time: 73006 > ms, > > >> entry > > >> > >> size 0,034 MB -> 73,01 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 348,8 MB/s throughput > > >> > >> #6 Total wall clock time: 104.0 ms, total callbacks time: 75696 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 75,70 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 328,7 MB/s throughput > > >> > >> #7 Total wall clock time: 103.0 ms, total callbacks time: 79260 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 79,26 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 331,8 MB/s throughput > > >> > >> #8 Total wall clock time: 92.0 ms, total callbacks time: 62232 > ms, > > >> entry > > >> > >> size 0,034 MB -> 62,23 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 371,5 MB/s throughput > > >> > >> #9 Total wall clock time: 98.0 ms, total callbacks time: 65359 > ms, > > >> entry > > >> > >> size 0,034 MB -> 65,36 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 348,8 MB/s throughput > > >> > >> > > >> > >> > > >> > >> gc.log > > >> > >> Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > JRE > > >> > >> (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with > > gcc > > >> > 4.3.0 > > >> > >> 20080428 (Red Hat 4.3.0-8) > > >> > >> Memory: 4k page, physical 32870636k(3154408k free), swap > > >> > >> 15622140k(15460604k free) > > >> > >> CommandLine flags: -XX:+CMSIncrementalMode > > >> > -XX:InitialHeapSize=2147483648 <%28214%29%20748-3648> > > >> > >> <(214)%20748-3648> -XX:MaxHeapSize=2147483648 > > <%28214%29%20748-3648> > > >> <(214)%20748-3648> > > >> > >> -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 > > >> > -XX:NewSize=697933824 > > >> > >> -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC > > >> > >> -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers > > >> > >> -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC > > >> > >> 0,554: [GC (Allocation Failure) 545344K->8624K(2029056K), > > 0,0060763 > > >> > secs] > > >> > >> 1,478: [GC (Allocation Failure) 552028K->79872K(2029056K), > > 0,0252399 > > >> > >> secs] > > >> > >> 1,504: [GC (CMS Initial Mark) 84227K(2029056K), 0,0017813 secs] > > >> > >> > > >> > >> > > >> > >> BK 4.4 + v3protocol + CMS + throttle = 0 > > >> > >> > > >> > >> #0 Total wall clock time: 214.0 ms, total callbacks time: 207369 > > ms, > > >> > >> entry size 0,034 MB -> 207,37 ms per entry (latency),0,2 ms per > > entry > > >> > >> (throughput) 159,7 MB/s throughput > > >> > >> #1 Total wall clock time: 153.0 ms, total callbacks time: 140661 > > ms, > > >> > >> entry size 0,034 MB -> 140,66 ms per entry (latency),0,2 ms per > > entry > > >> > >> (throughput) 223,4 MB/s throughput > > >> > >> #2 Total wall clock time: 159.0 ms, total callbacks time: 145131 > > ms, > > >> > >> entry size 0,034 MB -> 145,13 ms per entry (latency),0,2 ms per > > entry > > >> > >> (throughput) 215,0 MB/s throughput > > >> > >> #3 Total wall clock time: 109.0 ms, total callbacks time: 105018 > > ms, > > >> > >> entry size 0,034 MB -> 105,02 ms per entry (latency),0,1 ms per > > entry > > >> > >> (throughput) 313,6 MB/s throughput > > >> > >> #4 Total wall clock time: 114.0 ms, total callbacks time: 110111 > > ms, > > >> > >> entry size 0,034 MB -> 110,11 ms per entry (latency),0,1 ms per > > entry > > >> > >> (throughput) 299,8 MB/s throughput > > >> > >> #5 Total wall clock time: 118.0 ms, total callbacks time: 111534 > > ms, > > >> > >> entry size 0,034 MB -> 111,53 ms per entry (latency),0,1 ms per > > entry > > >> > >> (throughput) 289,7 MB/s throughput > > >> > >> #6 Total wall clock time: 98.0 ms, total callbacks time: 87425 > ms, > > >> entry > > >> > >> size 0,034 MB -> 87,43 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 348,8 MB/s throughput > > >> > >> #7 Total wall clock time: 135.0 ms, total callbacks time: 129583 > > ms, > > >> > >> entry size 0,034 MB -> 129,58 ms per entry (latency),0,1 ms per > > entry > > >> > >> (throughput) 253,2 MB/s throughput > > >> > >> #8 Total wall clock time: 99.0 ms, total callbacks time: 84986 > ms, > > >> entry > > >> > >> size 0,034 MB -> 84,99 ms per entry (latency),0,1 ms per entry > > >> > (throughput) > > >> > >> 345,2 MB/s throughput > > >> > >> #9 Total wall clock time: 125.0 ms, total callbacks time: 117492 > > ms, > > >> > >> entry size 0,034 MB -> 117,49 ms per entry (latency),0,1 ms per > > entry > > >> > >> (throughput) 273,4 MB/s throughput > > >> > >> > > >> > >> gc.log > > >> > >> Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > JRE > > >> > >> (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with > > gcc > > >> > 4.3.0 > > >> > >> 20080428 (Red Hat 4.3.0-8) > > >> > >> Memory: 4k page, physical 32870636k(3212484k free), swap > > >> > >> 15622140k(15460604k free) > > >> > >> CommandLine flags: -XX:+CMSIncrementalMode > > >> > -XX:InitialHeapSize=2147483648 <%28214%29%20748-3648> > > >> > >> <(214)%20748-3648> -XX:MaxHeapSize=2147483648 > > <%28214%29%20748-3648> > > >> <(214)%20748-3648> > > >> > >> -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 > > >> > -XX:NewSize=697933824 > > >> > >> -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC > > >> > >> -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers > > >> > >> -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC > > >> > >> 0,572: [GC (Allocation Failure) 545344K->8016K(2029056K), > > 0,0057737 > > >> > secs] > > >> > >> 0,882: [GC (Allocation Failure) 553360K->88089K(2029056K), > > 0,0205542 > > >> > >> secs] > > >> > >> 0,903: [GC (CMS Initial Mark) 93974K(2029056K), 0,0010542 secs] > > >> > >> 1,100: [GC (Allocation Failure) 633433K->94935K(2029056K), > > 0,0359948 > > >> > >> secs] > > >> > >> 1,221: [GC (CMS Final Remark) 384627K(2029056K), 0,0079453 secs] > > >> > >> 1,313: [GC (Allocation Failure) 640279K->98309K(2029056K), > > 0,0157774 > > >> > >> secs] > > >> > >> 1,481: [GC (Allocation Failure) 643653K->154062K(2029056K), > > >> 0,0179418 > > >> > >> secs] > > >> > >> 1,677: [GC (Allocation Failure) 699406K->210685K(2029056K), > > >> 0,0312668 > > >> > >> secs] > > >> > >> 1,709: [GC (CMS Initial Mark) 211186K(2029056K), 0,0006615 secs] > > >> > >> 1,894: [GC (Allocation Failure) 756029K->263420K(2029056K), > > >> 0,0168112 > > >> > >> secs] > > >> > >> > > >> > >> BK 4.5 + throttle = 5000 + CMS + v3 protocol > > >> > >> > > >> > >> #0 Total wall clock time: 248.0 ms, total callbacks time: 102307 > > ms, > > >> > >> entry size 0,034 MB -> 102,31 ms per entry (latency),0,2 ms per > > entry > > >> > >> (throughput) 137,8 MB/s throughput > > >> > >> #1 Total wall clock time: 205.0 ms, total callbacks time: 12282 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 12,28 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 166,7 MB/s throughput > > >> > >> #2 Total wall clock time: 204.0 ms, total callbacks time: 6920 > ms, > > >> entry > > >> > >> size 0,034 MB -> 6,92 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 167,5 MB/s throughput > > >> > >> #3 Total wall clock time: 221.0 ms, total callbacks time: 13589 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 13,59 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 154,7 MB/s throughput > > >> > >> #4 Total wall clock time: 204.0 ms, total callbacks time: 6023 > ms, > > >> entry > > >> > >> size 0,034 MB -> 6,02 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 167,5 MB/s throughput > > >> > >> #5 Total wall clock time: 205.0 ms, total callbacks time: 6350 > ms, > > >> entry > > >> > >> size 0,034 MB -> 6,35 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 166,7 MB/s throughput > > >> > >> #6 Total wall clock time: 205.0 ms, total callbacks time: 7849 > ms, > > >> entry > > >> > >> size 0,034 MB -> 7,85 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 166,7 MB/s throughput > > >> > >> #7 Total wall clock time: 204.0 ms, total callbacks time: 6443 > ms, > > >> entry > > >> > >> size 0,034 MB -> 6,44 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 167,5 MB/s throughput > > >> > >> #8 Total wall clock time: 206.0 ms, total callbacks time: 7009 > ms, > > >> entry > > >> > >> size 0,034 MB -> 7,01 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 165,9 MB/s throughput > > >> > >> #9 Total wall clock time: 205.0 ms, total callbacks time: 6150 > ms, > > >> entry > > >> > >> size 0,034 MB -> 6,15 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 166,7 MB/s throughput > > >> > >> > > >> > >> Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > JRE > > >> > >> (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with > > gcc > > >> > 4.3.0 > > >> > >> 20080428 (Red Hat 4.3.0-8) > > >> > >> Memory: 4k page, physical 32870636k(3247600k free), swap > > >> > >> 15622140k(15460604k free) > > >> > >> CommandLine flags: -XX:+CMSIncrementalMode > > >> > -XX:InitialHeapSize=2147483648 <%28214%29%20748-3648> > > >> > >> <(214)%20748-3648> -XX:MaxHeapSize=2147483648 > > <%28214%29%20748-3648> > > >> <(214)%20748-3648> > > >> > >> -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 > > >> > -XX:NewSize=697933824 > > >> > >> -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC > > >> > >> -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers > > >> > >> -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC > > >> > >> 0,568: [GC (Allocation Failure) 545344K->8497K(2029056K), > > 0,0060302 > > >> > secs] > > >> > >> 1,059: [GC (Allocation Failure) 553841K->112138K(2029056K), > > >> 0,0206230 > > >> > >> secs] > > >> > >> 1,080: [GC (CMS Initial Mark) 117602K(2029056K), 0,0013282 secs] > > >> > >> 1,561: [GC (Allocation Failure) 654247K->189231K(2029056K), > > >> 0,0379235 > > >> > >> secs] > > >> > >> 2,079: [GC (Allocation Failure) 731215K->185468K(2029056K), > > >> 0,0107924 > > >> > >> secs] > > >> > >> 2,320: [GC (CMS Final Remark) 431925K(2029056K), 0,0076070 secs] > > >> > >> 2,635: [GC (Allocation Failure) 730812K->217376K(2029056K), > > >> 0,0136162 > > >> > >> secs] > > >> > >> > > >> > >> > > >> > >> BK 4.4 + throttle = 5000 + CMS + v3 protocol > > >> > >> > > >> > >> #0 Total wall clock time: 208.0 ms, total callbacks time: 55274 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 55,27 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 164,3 MB/s throughput > > >> > >> #1 Total wall clock time: 207.0 ms, total callbacks time: 11848 > ms, > > >> > entry > > >> > >> size 0,034 MB -> 11,85 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 165,1 MB/s throughput > > >> > >> #2 Total wall clock time: 208.0 ms, total callbacks time: 9442 > ms, > > >> entry > > >> > >> size 0,034 MB -> 9,44 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 164,3 MB/s throughput > > >> > >> #3 Total wall clock time: 204.0 ms, total callbacks time: 6739 > ms, > > >> entry > > >> > >> size 0,034 MB -> 6,74 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 167,5 MB/s throughput > > >> > >> #4 Total wall clock time: 205.0 ms, total callbacks time: 7546 > ms, > > >> entry > > >> > >> size 0,034 MB -> 7,55 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 166,7 MB/s throughput > > >> > >> #5 Total wall clock time: 204.0 ms, total callbacks time: 6594 > ms, > > >> entry > > >> > >> size 0,034 MB -> 6,59 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 167,5 MB/s throughput > > >> > >> #6 Total wall clock time: 205.0 ms, total callbacks time: 5885 > ms, > > >> entry > > >> > >> size 0,034 MB -> 5,89 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 166,7 MB/s throughput > > >> > >> #7 Total wall clock time: 204.0 ms, total callbacks time: 7722 > ms, > > >> entry > > >> > >> size 0,034 MB -> 7,72 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 167,5 MB/s throughput > > >> > >> #8 Total wall clock time: 224.0 ms, total callbacks time: 5968 > ms, > > >> entry > > >> > >> size 0,034 MB -> 5,97 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 152,6 MB/s throughput > > >> > >> #9 Total wall clock time: 209.0 ms, total callbacks time: 6731 > ms, > > >> entry > > >> > >> size 0,034 MB -> 6,73 ms per entry (latency),0,2 ms per entry > > >> > (throughput) > > >> > >> 163,5 MB/s throughput > > >> > >> > > >> > >> gc.log > > >> > >> Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > JRE > > >> > >> (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" with > > gcc > > >> > 4.3.0 > > >> > >> 20080428 (Red Hat 4.3.0-8) > > >> > >> Memory: 4k page, physical 32870636k(3291888k free), swap > > >> > >> 15622140k(15460604k free) > > >> > >> CommandLine flags: -XX:+CMSIncrementalMode > > >> > -XX:InitialHeapSize=2147483648 <%28214%29%20748-3648> > > >> > >> <(214)%20748-3648> -XX:MaxHeapSize=2147483648 > > <%28214%29%20748-3648> > > >> <(214)%20748-3648> > > >> > >> -XX:MaxNewSize=697933824 -XX:MaxTenuringThreshold=6 > > >> > -XX:NewSize=697933824 > > >> > >> -XX:OldPLABSize=16 -XX:OldSize=1395867648 -XX:+PrintGC > > >> > >> -XX:+PrintGCTimeStamps -XX:+UseCompressedClassPointers > > >> > >> -XX:+UseCompressedOops -XX:+UseConcMarkSweepGC -XX:+UseParNewGC > > >> > >> 0,554: [GC (Allocation Failure) 545344K->8022K(2029056K), > > 0,0055210 > > >> > secs] > > >> > >> 0,890: [GC (Allocation Failure) 553366K->93114K(2029056K), > > 0,0177003 > > >> > >> secs] > > >> > >> 0,909: [GC (CMS Initial Mark) 97210K(2029056K), 0,0011810 secs] > > >> > >> 1,204: [GC (Allocation Failure) 638458K->102278K(2029056K), > > >> 0,0181779 > > >> > >> secs] > > >> > >> 1,536: [GC (Allocation Failure) 645878K->103955K(2029056K), > > >> 0,0088187 > > >> > >> secs] > > >> > >> 1,679: [GC (CMS Final Remark) 353595K(2029056K), 0,0078553 secs] > > >> > >> 1,858: [GC (Allocation Failure) 649299K->78654K(2029056K), > > 0,0064803 > > >> > >> secs] > > >> > >> 2,187: [GC (Allocation Failure) 623998K->120130K(2029056K), > > >> 0,0125856 > > >> > >> secs] > > >> > >> 2,200: [GC (CMS Initial Mark) 121879K(2029056K), 0,0003934 secs] > > >> > >> 2,518: [GC (Allocation Failure) 665474K->193813K(2029056K), > > >> 0,0202701 > > >> > >> secs] > > >> > >> > > >> > >> > > >> > >> > > >> > >> > > >> > >>> > > >> > >>> > - using the v2 protocol brings huge improvements in the usage > of > > >> > memory > > >> > >>> > - if you want good "latency" for each entry you have to set at > > >> least > > >> > >>> > throttle to 1000, but the throughput will be very lower (from > 30 > > >> MB/s > > >> > >>> vs > > >> > >>> > 300 MB/s on my disk) > > >> > >>> > > > >> > >>> > > >> > >>> What type of disk do you have? What is your filesystem mount > > >> options? > > >> > >>> > > >> > >> > > >> > >> Disk type: SSD > > >> > >> this is fstab line: > > >> > >> /dev/mapper/Ssd-Home /home ext4 > > >> > >> defaults,discard 1 2 > > >> > >> > > >> > >> uname -a > > >> > >> Linux DNA101PC193.diennea.lan 4.11.5-100.fc24.x86_64 #1 SMP Wed > Jun > > >> 14 > > >> > >> 17:21:39 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux > > >> > >> > > >> > >> > > >> > >> > > >> > >>> > > >> > >>> When you did the test, how did GC activities look like when > > setting > > >> > >>> throttle to be more than 1000? > > >> > >>> > > >> > >> > > >> > >> I have added new results, see above > > >> > >> > > >> > >> > > >> > >>> > > >> > >>> I think the latency looked "bad" when throttle was more than > 1000, > > >> is > > >> > >>> because of GC. Did you have that test results? > > >> > >>> > > >> > >> > > >> > >> > > >> > >> I apologize, in the below results when I did not write 'throttle > = > > >> 0" I > > >> > >> meant throttle = 1000 > > >> > >> > > >> > >> Did you take a look an the code of the bench ? Maybe a double > check > > >> > would > > >> > >> be useful, many times badly written benchmarks are not useful at > > all > > >> > >> > > >> > >> Thank you > > >> > >> -- Enrico > > >> > >> > > >> > >> > > >> > >> > > >> > >>> > > >> > >>> > > >> > >>> > below the results of my simple bench > > >> > >>> > > > >> > >>> > Enrico > > >> > >>> > > > >> > >>> > Bench code: > > >> > >>> > > > >> > >>> https://github.com/eolivelli/bookkeepers-benchs/blob/ > > >> > master/src/test/java/ > > >> > >>> > BookKeeperWriteTest.java > > >> > >>> > > > >> > >>> > Results: > > >> > >>> > with 4.5.0-SNAPSHOT and v2 protocol - G1 GC > > >> > >>> > > > >> > >>> > #0 Total wall clock time: 1000.0 ms, total callbacks time: > 8460 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 8,46 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,2 MB/s throughput > > >> > >>> > #1 Total wall clock time: 1005.0 ms, total callbacks time: > 4529 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,53 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #2 Total wall clock time: 1002.0 ms, total callbacks time: > 4293 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,29 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #3 Total wall clock time: 1003.0 ms, total callbacks time: > 4317 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,32 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #4 Total wall clock time: 1002.0 ms, total callbacks time: > 4553 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,55 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #5 Total wall clock time: 1001.0 ms, total callbacks time: > 4448 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #6 Total wall clock time: 1004.0 ms, total callbacks time: > 4449 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #7 Total wall clock time: 1003.0 ms, total callbacks time: > 4504 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,50 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #8 Total wall clock time: 1002.0 ms, total callbacks time: > 4290 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,29 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #9 Total wall clock time: 1003.0 ms, total callbacks time: > 4441 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,44 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > > > >> > >>> > gc.log > > >> > >>> > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > > JRE > > >> > >>> > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" > with > > >> gcc > > >> > >>> 4.3.0 > > >> > >>> > 20080428 (Red Hat 4.3.0-8) > > >> > >>> > Memory: 4k page, physical 32870636k(9153868k free), swap > > >> > >>> > 15622140k(15464700k free) > > >> > >>> > CommandLine flags: -XX:InitialHeapSize=2147483648 > > >> <%28214%29%20748-3648> <(214)%20748-3648> > > >> > >>> > -XX:MaxHeapSize=2147483648 <%28214%29%20748-3648> > > >> <(214)%20748-3648> -XX:+PrintGC > > >> > >>> -XX:+PrintGCTimeStamps > > >> > >>> > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > > >> -XX:+UseG1GC > > >> > >>> > 1,988: [GC pause (G1 Evacuation Pause) (young) > 146M->59M(2048M), > > >> > >>> 0,0104300 > > >> > >>> > secs] > > >> > >>> > > > >> > >>> > > > >> > >>> > Results, with 4.5.0-SNAPSHOT and v3 protocol - G1 GC > > >> > >>> > #0 Total wall clock time: 1001.0 ms, total callbacks time: > 11800 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 11,80 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #1 Total wall clock time: 1001.0 ms, total callbacks time: > 4585 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,59 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #2 Total wall clock time: 1002.0 ms, total callbacks time: > 4458 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,46 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #3 Total wall clock time: 1002.0 ms, total callbacks time: > 4471 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,47 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #4 Total wall clock time: 1004.0 ms, total callbacks time: > 4473 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,47 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #5 Total wall clock time: 1003.0 ms, total callbacks time: > 4477 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,48 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #6 Total wall clock time: 1007.0 ms, total callbacks time: > 4424 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,42 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 33,9 MB/s throughput > > >> > >>> > #7 Total wall clock time: 1005.0 ms, total callbacks time: > 4576 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,58 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #8 Total wall clock time: 1002.0 ms, total callbacks time: > 4447 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #9 Total wall clock time: 1007.0 ms, total callbacks time: > 4501 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,50 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 33,9 MB/s throughput > > >> > >>> > > > >> > >>> > gc.log > > >> > >>> > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > > JRE > > >> > >>> > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" > with > > >> gcc > > >> > >>> 4.3.0 > > >> > >>> > 20080428 (Red Hat 4.3.0-8) > > >> > >>> > Memory: 4k page, physical 32870636k(9042512k free), swap > > >> > >>> > 15622140k(15464700k free) > > >> > >>> > CommandLine flags: -XX:InitialHeapSize=2147483648 > > >> <%28214%29%20748-3648> <(214)%20748-3648> > > >> > >>> > -XX:MaxHeapSize=2147483648 <%28214%29%20748-3648> > > >> <(214)%20748-3648> -XX:+PrintGC > > >> > >>> -XX:+PrintGCTimeStamps > > >> > >>> > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > > >> -XX:+UseG1GC > > >> > >>> > 0,830: [GC pause (G1 Evacuation Pause) (young) > 118M->33M(2048M), > > >> > >>> 0,0116376 > > >> > >>> > secs] > > >> > >>> > 1,372: [GC pause (G1 Evacuation Pause) (young) > 162M->73M(2048M), > > >> > >>> 0,0055103 > > >> > >>> > secs] > > >> > >>> > 2,172: [GC pause (G1 Evacuation Pause) (young) > 227M->99M(2048M), > > >> > >>> 0,0023962 > > >> > >>> > secs] > > >> > >>> > 10,358: [GC pause (G1 Evacuation Pause) (young) > > >> 1620M->122M(2048M), > > >> > >>> > 0,0026519 secs] > > >> > >>> > 11,676: [GC pause (Metadata GC Threshold) (young) > (initial-mark) > > >> > >>> > 242M->114M(2048M), 0,0021797 secs] > > >> > >>> > 11,678: [GC concurrent-root-region-scan-start] > > >> > >>> > 11,679: [GC concurrent-root-region-scan-end, 0,0007421 secs] > > >> > >>> > 11,679: [GC concurrent-mark-start] > > >> > >>> > 11,684: [GC concurrent-mark-end, 0,0046645 secs] > > >> > >>> > 11,684: [GC remark, 0,0027234 secs] > > >> > >>> > 11,687: [GC cleanup 115M->111M(2048M), 0,0008957 secs] > > >> > >>> > 11,688: [GC concurrent-cleanup-start] > > >> > >>> > 11,688: [GC concurrent-cleanup-end, 0,0000070 secs] > > >> > >>> > > > >> > >>> > > > >> > >>> > With 4.4.0 - v3 protocol - G1 GC > > >> > >>> > #0 Total wall clock time: 1001.0 ms, total callbacks time: > 6723 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 6,72 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #1 Total wall clock time: 1003.0 ms, total callbacks time: > 4495 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,50 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #2 Total wall clock time: 1001.0 ms, total callbacks time: > 4406 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,41 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #3 Total wall clock time: 1005.0 ms, total callbacks time: > 4457 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,46 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #4 Total wall clock time: 1002.0 ms, total callbacks time: > 4388 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,39 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #5 Total wall clock time: 1004.0 ms, total callbacks time: > 4451 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #6 Total wall clock time: 1003.0 ms, total callbacks time: > 4574 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,57 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #7 Total wall clock time: 1003.0 ms, total callbacks time: > 4523 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,52 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #8 Total wall clock time: 1004.0 ms, total callbacks time: > 4450 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,45 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #9 Total wall clock time: 1002.0 ms, total callbacks time: > 4542 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,54 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > > > >> > >>> > gc.log > > >> > >>> > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > > JRE > > >> > >>> > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" > with > > >> gcc > > >> > >>> 4.3.0 > > >> > >>> > 20080428 (Red Hat 4.3.0-8) > > >> > >>> > Memory: 4k page, physical 32870636k(8931792k free), swap > > >> > >>> > 15622140k(15464700k free) > > >> > >>> > CommandLine flags: -XX:InitialHeapSize=2147483648 > > >> <%28214%29%20748-3648> <(214)%20748-3648> > > >> > >>> > -XX:MaxHeapSize=2147483648 <%28214%29%20748-3648> > > >> <(214)%20748-3648> -XX:+PrintGC > > >> > >>> -XX:+PrintGCTimeStamps > > >> > >>> > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > > >> -XX:+UseG1GC > > >> > >>> > 0,750: [GC pause (G1 Evacuation Pause) (young) > 106M->14M(2048M), > > >> > >>> 0,0070948 > > >> > >>> > secs] > > >> > >>> > 1,089: [GC pause (G1 Evacuation Pause) (young) > 127M->21M(2048M), > > >> > >>> 0,0038837 > > >> > >>> > secs] > > >> > >>> > 1,608: [GC pause (G1 Evacuation Pause) (young) > 193M->41M(2048M), > > >> > >>> 0,0039903 > > >> > >>> > secs] > > >> > >>> > 3,745: [GC pause (G1 Evacuation Pause) (young) > 733M->49M(2048M), > > >> > >>> 0,0046991 > > >> > >>> > secs] > > >> > >>> > 7,990: [GC pause (G1 Evacuation Pause) (young) > > 1423M->65M(2048M), > > >> > >>> 0,0052844 > > >> > >>> > secs] > > >> > >>> > > > >> > >>> > > > >> > >>> > > > >> > >>> > with 4.4 - v3 protocol Parallel GC > > >> > >>> > > > >> > >>> > #0 Total wall clock time: 999.0 ms, total callbacks time: 6007 > > ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 6,01 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,2 MB/s throughput > > >> > >>> > #1 Total wall clock time: 1001.0 ms, total callbacks time: > 4813 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,81 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #2 Total wall clock time: 1003.0 ms, total callbacks time: > 4580 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,58 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #3 Total wall clock time: 1002.0 ms, total callbacks time: > 4349 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,35 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #4 Total wall clock time: 1002.0 ms, total callbacks time: > 4456 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,46 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #5 Total wall clock time: 1006.0 ms, total callbacks time: > 4504 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,50 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #6 Total wall clock time: 1003.0 ms, total callbacks time: > 4387 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,39 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #7 Total wall clock time: 1002.0 ms, total callbacks time: > 4643 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,64 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #8 Total wall clock time: 1002.0 ms, total callbacks time: > 4548 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,55 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #9 Total wall clock time: 1001.0 ms, total callbacks time: > 4633 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,63 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > > > >> > >>> > gc.log > > >> > >>> > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > > JRE > > >> > >>> > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" > with > > >> gcc > > >> > >>> 4.3.0 > > >> > >>> > 20080428 (Red Hat 4.3.0-8) > > >> > >>> > Memory: 4k page, physical 32870636k(8877776k free), swap > > >> > >>> > 15622140k(15464700k free) > > >> > >>> > CommandLine flags: -XX:InitialHeapSize=2147483648 > > >> <%28214%29%20748-3648> <(214)%20748-3648> > > >> > >>> > -XX:MaxHeapSize=2147483648 <%28214%29%20748-3648> > > >> <(214)%20748-3648> -XX:+PrintGC > > >> > >>> -XX:+PrintGCTimeStamps > > >> > >>> > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > > >> > >>> -XX:+UseParallelGC > > >> > >>> > 0,603: [GC (Allocation Failure) 524800K->8488K(2010112K), > > >> 0,0056746 > > >> > >>> secs] > > >> > >>> > 1,996: [GC (Allocation Failure) 533268K->181534K(2010112K), > > >> > 0,0248460 > > >> > >>> > secs] > > >> > >>> > 3,475: [GC (Allocation Failure) 703337K->237612K(2010112K), > > >> > 0,0192195 > > >> > >>> > secs] > > >> > >>> > 4,963: [GC (Allocation Failure) 762412K->212913K(2010112K), > > >> > 0,0085357 > > >> > >>> > secs] > > >> > >>> > 6,473: [GC (Allocation Failure) 737684K->192597K(1951232K), > > >> > 0,0065437 > > >> > >>> > secs] > > >> > >>> > 8,019: [GC (Allocation Failure) 704597K->319617K(1863680K), > > >> > 0,0189275 > > >> > >>> > secs] > > >> > >>> > 9,008: [GC (Allocation Failure) 651905K->315463K(1853952K), > > >> > 0,0121369 > > >> > >>> > secs] > > >> > >>> > 9,997: [GC (Allocation Failure) 647729K->418132K(1848832K), > > >> > 0,0222260 > > >> > >>> > secs] > > >> > >>> > 10,742: [GC (Allocation Failure) 679764K->340097K(1878528K), > > >> > 0,0111347 > > >> > >>> > secs] > > >> > >>> > > > >> > >>> > > > >> > >>> > with 4.5 - v2 protocol Parallel GC > > >> > >>> > > > >> > >>> > #0 Total wall clock time: 1004.0 ms, total callbacks time: > 8030 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 8,03 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #1 Total wall clock time: 1003.0 ms, total callbacks time: > 4394 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,39 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #2 Total wall clock time: 1002.0 ms, total callbacks time: > 4417 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,42 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #3 Total wall clock time: 1005.0 ms, total callbacks time: > 4362 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,36 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #4 Total wall clock time: 1003.0 ms, total callbacks time: > 4435 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,44 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #5 Total wall clock time: 1002.0 ms, total callbacks time: > 4489 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,49 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #6 Total wall clock time: 1002.0 ms, total callbacks time: > 4346 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,35 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #7 Total wall clock time: 1004.0 ms, total callbacks time: > 4474 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,47 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #8 Total wall clock time: 1005.0 ms, total callbacks time: > 4436 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,44 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #9 Total wall clock time: 1001.0 ms, total callbacks time: > 4322 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,32 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > > > >> > >>> > gc.log > > >> > >>> > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > > JRE > > >> > >>> > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" > with > > >> gcc > > >> > >>> 4.3.0 > > >> > >>> > 20080428 (Red Hat 4.3.0-8) > > >> > >>> > Memory: 4k page, physical 32870636k(8951980k free), swap > > >> > >>> > 15622140k(15464700k free) > > >> > >>> > CommandLine flags: -XX:InitialHeapSize=2147483648 > > >> <%28214%29%20748-3648> <(214)%20748-3648> > > >> > >>> > -XX:MaxHeapSize=2147483648 <%28214%29%20748-3648> > > >> <(214)%20748-3648> -XX:+PrintGC > > >> > >>> -XX:+PrintGCTimeStamps > > >> > >>> > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > > >> > >>> -XX:+UseParallelGC > > >> > >>> > 0,583: [GC (Allocation Failure) 524800K->8921K(2010112K), > > >> 0,0054470 > > >> > >>> secs] > > >> > >>> > 6,397: [GC (Allocation Failure) 533721K->178956K(2010112K), > > >> > 0,0306493 > > >> > >>> secs > > >> > >>> > > > >> > >>> > > > >> > >>> > with 4.5 - v3 protocol Parallel GC > > >> > >>> > > > >> > >>> > #0 Total wall clock time: 1002.0 ms, total callbacks time: > 10679 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 10,68 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #1 Total wall clock time: 1003.0 ms, total callbacks time: > 4802 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,80 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #2 Total wall clock time: 1003.0 ms, total callbacks time: > 4479 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,48 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #3 Total wall clock time: 1002.0 ms, total callbacks time: > 4726 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,73 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #4 Total wall clock time: 1007.0 ms, total callbacks time: > 4393 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,39 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 33,9 MB/s throughput > > >> > >>> > #5 Total wall clock time: 1006.0 ms, total callbacks time: > 4619 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,62 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #6 Total wall clock time: 1002.0 ms, total callbacks time: > 4346 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,35 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #7 Total wall clock time: 1002.0 ms, total callbacks time: > 4402 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,40 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,1 MB/s throughput > > >> > >>> > #8 Total wall clock time: 1004.0 ms, total callbacks time: > 4487 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,49 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 34,0 MB/s throughput > > >> > >>> > #9 Total wall clock time: 1007.0 ms, total callbacks time: > 4315 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 4,32 ms per entry (latency),1,0 ms per entry > > >> > >>> (throughput) > > >> > >>> > 33,9 MB/s throughput > > >> > >>> > > > >> > >>> > gc.log > > >> > >>> > > > >> > >>> > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > > JRE > > >> > >>> > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" > with > > >> gcc > > >> > >>> 4.3.0 > > >> > >>> > 20080428 (Red Hat 4.3.0-8) > > >> > >>> > Memory: 4k page, physical 32870636k(8921388k free), swap > > >> > >>> > 15622140k(15464700k free) > > >> > >>> > CommandLine flags: -XX:InitialHeapSize=2147483648 > > >> <%28214%29%20748-3648> <(214)%20748-3648> > > >> > >>> > -XX:MaxHeapSize=2147483648 <%28214%29%20748-3648> > > >> <(214)%20748-3648> -XX:+PrintGC > > >> > >>> -XX:+PrintGCTimeStamps > > >> > >>> > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > > >> > >>> -XX:+UseParallelGC > > >> > >>> > 0,563: [GC (Allocation Failure) 524800K->8935K(2010112K), > > >> 0,0055378 > > >> > >>> secs] > > >> > >>> > 1,936: [GC (Allocation Failure) 533735K->187494K(2010112K), > > >> > 0,0281195 > > >> > >>> > secs] > > >> > >>> > 3,917: [GC (Allocation Failure) 712294K->275491K(2010112K), > > >> > 0,0298168 > > >> > >>> > secs] > > >> > >>> > 6,385: [GC (Allocation Failure) 798141K->394430K(2010112K), > > >> > 0,0279730 > > >> > >>> > secs] > > >> > >>> > 8,934: [GC (Allocation Failure) 919230K->394530K(2008576K), > > >> > 0,0127794 > > >> > >>> > secs] > > >> > >>> > 11,634: [GC (Metadata GC Threshold) > 811154K->348997K(1868288K), > > >> > >>> 0,0080161 > > >> > >>> > secs] > > >> > >>> > 11,642: [Full GC (Metadata GC Threshold) > > >> 348997K->39874K(1868288K), > > >> > >>> > 0,0247462 secs] > > >> > >>> > > > >> > >>> > > > >> > >>> > 4.5 v3 protocol parallel GC throttle = 0 > > >> > >>> > > > >> > >>> > #0 Total wall clock time: 334.0 ms, total callbacks time: > 267444 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 267,44 ms per entry (latency),0,3 ms per > entry > > >> > >>> > (throughput) 102,3 MB/s throughput > > >> > >>> > #1 Total wall clock time: 189.0 ms, total callbacks time: > 154428 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 154,43 ms per entry (latency),0,2 ms per > entry > > >> > >>> > (throughput) 180,8 MB/s throughput > > >> > >>> > #2 Total wall clock time: 136.0 ms, total callbacks time: > 103012 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 103,01 ms per entry (latency),0,1 ms per > entry > > >> > >>> > (throughput) 251,3 MB/s throughput > > >> > >>> > #3 Total wall clock time: 156.0 ms, total callbacks time: > 113315 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 113,32 ms per entry (latency),0,2 ms per > entry > > >> > >>> > (throughput) 219,1 MB/s throughput > > >> > >>> > #4 Total wall clock time: 110.0 ms, total callbacks time: > 79296 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 79,30 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 310,7 MB/s throughput > > >> > >>> > #5 Total wall clock time: 104.0 ms, total callbacks time: > 71213 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 71,21 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 328,7 MB/s throughput > > >> > >>> > #6 Total wall clock time: 161.0 ms, total callbacks time: > 72447 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 72,45 ms per entry (latency),0,2 ms per entry > > >> > >>> (throughput) > > >> > >>> > 212,3 MB/s throughput > > >> > >>> > #7 Total wall clock time: 103.0 ms, total callbacks time: > 82783 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 82,78 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 331,8 MB/s throughput > > >> > >>> > #8 Total wall clock time: 138.0 ms, total callbacks time: > 106086 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 106,09 ms per entry (latency),0,1 ms per > entry > > >> > >>> > (throughput) 247,7 MB/s throughput > > >> > >>> > #9 Total wall clock time: 118.0 ms, total callbacks time: > 77750 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 77,75 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 289,7 MB/s throughput > > >> > >>> > > > >> > >>> > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > > JRE > > >> > >>> > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" > with > > >> gcc > > >> > >>> 4.3.0 > > >> > >>> > 20080428 (Red Hat 4.3.0-8) > > >> > >>> > Memory: 4k page, physical 32870636k(8858832k free), swap > > >> > >>> > 15622140k(15464700k free) > > >> > >>> > CommandLine flags: -XX:InitialHeapSize=2147483648 > > >> <%28214%29%20748-3648> <(214)%20748-3648> > > >> > >>> > -XX:MaxHeapSize=2147483648 <%28214%29%20748-3648> > > >> <(214)%20748-3648> -XX:+PrintGC > > >> > >>> -XX:+PrintGCTimeStamps > > >> > >>> > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > > >> > >>> -XX:+UseParallelGC > > >> > >>> > 0,660: [GC (Allocation Failure) 524800K->8955K(2010112K), > > >> 0,0061442 > > >> > >>> secs] > > >> > >>> > 1,288: [GC (Allocation Failure) 533726K->191538K(2010112K), > > >> > 0,0329663 > > >> > >>> > secs] > > >> > >>> > 1,634: [GC (Allocation Failure) 716338K->349468K(2010112K), > > >> > 0,0508922 > > >> > >>> > secs] > > >> > >>> > 1,942: [GC (Allocation Failure) 874268K->671717K(2010112K), > > >> > 0,0609749 > > >> > >>> > secs] > > >> > >>> > 2,266: [GC (Allocation Failure) 1196517K->781335K(2010112K), > > >> > 0,0320305 > > >> > >>> > secs] > > >> > >>> > > > >> > >>> > 4.5 v2protocol throttle = 0 G1 GC > > >> > >>> > > > >> > >>> > #0 Total wall clock time: 200.0 ms, total callbacks time: > 173682 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 173,68 ms per entry (latency),0,2 ms per > entry > > >> > >>> > (throughput) 170,9 MB/s throughput > > >> > >>> > #1 Total wall clock time: 128.0 ms, total callbacks time: > 89987 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 89,99 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 267,0 MB/s throughput > > >> > >>> > #2 Total wall clock time: 117.0 ms, total callbacks time: > 86411 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 86,41 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 292,1 MB/s throughput > > >> > >>> > #3 Total wall clock time: 95.0 ms, total callbacks time: 64054 > > ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 64,05 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 359,8 MB/s throughput > > >> > >>> > #4 Total wall clock time: 92.0 ms, total callbacks time: 60863 > > ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 60,86 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 371,5 MB/s throughput > > >> > >>> > #5 Total wall clock time: 92.0 ms, total callbacks time: 62026 > > ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 62,03 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 371,5 MB/s throughput > > >> > >>> > #6 Total wall clock time: 93.0 ms, total callbacks time: 65033 > > ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 65,03 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 367,5 MB/s throughput > > >> > >>> > #7 Total wall clock time: 88.0 ms, total callbacks time: 59851 > > ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 59,85 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 388,4 MB/s throughput > > >> > >>> > #8 Total wall clock time: 93.0 ms, total callbacks time: 61816 > > ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 61,82 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 367,5 MB/s throughput > > >> > >>> > #9 Total wall clock time: 93.0 ms, total callbacks time: 70397 > > ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 70,40 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 367,5 MB/s throughput > > >> > >>> > > > >> > >>> > > > >> > >>> > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > > JRE > > >> > >>> > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" > with > > >> gcc > > >> > >>> 4.3.0 > > >> > >>> > 20080428 (Red Hat 4.3.0-8) > > >> > >>> > Memory: 4k page, physical 32870636k(8894828k free), swap > > >> > >>> > 15622140k(15464700k free) > > >> > >>> > CommandLine flags: -XX:InitialHeapSize=2147483648 > > >> <%28214%29%20748-3648> <(214)%20748-3648> > > >> > >>> > -XX:MaxHeapSize=2147483648 <%28214%29%20748-3648> > > >> <(214)%20748-3648> -XX:+PrintGC > > >> > >>> -XX:+PrintGCTimeStamps > > >> > >>> > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > > >> -XX:+UseG1GC > > >> > >>> > 1,078: [GC pause (G1 Evacuation Pause) (young) > 150M->65M(2048M), > > >> > >>> 0,0138100 > > >> > >>> > secs] > > >> > >>> > > > >> > >>> > bk 4.5 v3 protocol G1 GC throttle = 0 > > >> > >>> > > > >> > >>> > #0 Total wall clock time: 275.0 ms, total callbacks time: > 238043 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 238,04 ms per entry (latency),0,3 ms per > entry > > >> > >>> > (throughput) 124,3 MB/s throughput > > >> > >>> > #1 Total wall clock time: 148.0 ms, total callbacks time: > 106877 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 106,88 ms per entry (latency),0,1 ms per > entry > > >> > >>> > (throughput) 230,9 MB/s throughput > > >> > >>> > #2 Total wall clock time: 130.0 ms, total callbacks time: > 96448 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 96,45 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 262,9 MB/s throughput > > >> > >>> > #3 Total wall clock time: 118.0 ms, total callbacks time: > 78246 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 78,25 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 289,7 MB/s throughput > > >> > >>> > #4 Total wall clock time: 109.0 ms, total callbacks time: > 79110 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 79,11 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 313,6 MB/s throughput > > >> > >>> > #5 Total wall clock time: 124.0 ms, total callbacks time: > 86652 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 86,65 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 275,6 MB/s throughput > > >> > >>> > #6 Total wall clock time: 110.0 ms, total callbacks time: > 76729 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 76,73 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 310,7 MB/s throughput > > >> > >>> > #7 Total wall clock time: 110.0 ms, total callbacks time: > 80104 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 80,10 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 310,7 MB/s throughput > > >> > >>> > #8 Total wall clock time: 104.0 ms, total callbacks time: > 73514 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 73,51 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 328,7 MB/s throughput > > >> > >>> > #9 Total wall clock time: 102.0 ms, total callbacks time: > 74487 > > >> ms, > > >> > >>> entry > > >> > >>> > size 0,034 MB -> 74,49 ms per entry (latency),0,1 ms per entry > > >> > >>> (throughput) > > >> > >>> > 335,1 MB/s throughput > > >> > >>> > > > >> > >>> > Java HotSpot(TM) 64-Bit Server VM (25.121-b13) for linux-amd64 > > JRE > > >> > >>> > (1.8.0_121-b13), built on Dec 12 2016 16:36:53 by "java_re" > with > > >> gcc > > >> > >>> 4.3.0 > > >> > >>> > 20080428 (Red Hat 4.3.0-8) > > >> > >>> > Memory: 4k page, physical 32870636k(8958604k free), swap > > >> > >>> > 15622140k(15464700k free) > > >> > >>> > CommandLine flags: -XX:InitialHeapSize=2147483648 > > >> <%28214%29%20748-3648> <(214)%20748-3648> > > >> > >>> > -XX:MaxHeapSize=2147483648 <%28214%29%20748-3648> > > >> <(214)%20748-3648> -XX:+PrintGC > > >> > >>> -XX:+PrintGCTimeStamps > > >> > >>> > -XX:+UseCompressedClassPointers -XX:+UseCompressedOops > > >> -XX:+UseG1GC > > >> > >>> > 0,876: [GC pause (G1 Evacuation Pause) (young) > 102M->19M(2048M), > > >> > >>> 0,0107143 > > >> > >>> > secs] > > >> > >>> > 0,989: [GC pause (G1 Evacuation Pause) (young) > 152M->81M(2048M), > > >> > >>> 0,0074561 > > >> > >>> > secs] > > >> > >>> > 1,125: [GC pause (G1 Evacuation Pause) (young) > > 198M->108M(2048M), > > >> > >>> 0,0038296 > > >> > >>> > secs] > > >> > >>> > 1,286: [GC pause (G1 Evacuation Pause) (young) > > 306M->146M(2048M), > > >> > >>> 0,0034297 > > >> > >>> > secs] > > >> > >>> > > > >> > >>> > > > >> > >>> > > > >> > >>> > 2017-07-12 3:07 GMT+02:00 Sijie Guo <guosi...@gmail.com>: > > >> > >>> > > > >> > >>> > > On Wed, Jul 12, 2017 at 2:04 AM, Venkateswara Rao Jujjuri < > > >> > >>> > > jujj...@gmail.com > > >> > >>> > > > wrote: > > >> > >>> > > > > >> > >>> > > > Enrico, let me try to paraphrase the issue. > > >> > >>> > > > > > >> > >>> > > > - With G1GC + Netty 4.1 is giving you roughly same perf as > > >> prev > > >> > >>> > release. > > >> > >>> > > Is > > >> > >>> > > > that accurate statement? > > >> > >>> > > > But you are still seeing latency spikes with Netty 4.1?? > > >> > >>> > > > > >> > >>> > > > > >> > >>> > > > > >> > >>> > > > > >> > >>> > > > > >> > >>> > > > I did not fully > > >> > >>> > > > understand your sleep usecase. > > >> > >>> > > > How sleep is yielding better latency? > > >> > >>> > > > > > >> > >>> > > > > >> > >>> > > I think the "sleep(1)" in Enrico's benchmark is for > > throttling. > > >> It > > >> > is > > >> > >>> > same > > >> > >>> > > as setting 'throttle' value to 1000 in his test. > > >> > >>> > > > > >> > >>> > > - Sijie > > >> > >>> > > > > >> > >>> > > > > >> > >>> > > > > >> > >>> > > > > > >> > >>> > > > Thanks, > > >> > >>> > > > JV > > >> > >>> > > > > > >> > >>> > > > On Tue, Jul 11, 2017 at 8:27 AM, Enrico Olivelli < > > >> > >>> eolive...@gmail.com> > > >> > >>> > > > wrote: > > >> > >>> > > > > > >> > >>> > > > > Another interesting thing...during my profiling > activity I > > >> > gave a > > >> > >>> > > chance > > >> > >>> > > > to > > >> > >>> > > > > the old v2 protocol and activated the gc logs, as > expected > > >> the > > >> > >>> result > > >> > >>> > > is > > >> > >>> > > > > that with v2 protocol there is almost no GC activity > > during > > >> the > > >> > >>> > > benchmark > > >> > >>> > > > > -- Enrico > > >> > >>> > > > > > > >> > >>> > > > > 2017-07-11 12:07 GMT+02:00 Enrico Olivelli < > > >> > eolive...@gmail.com > > >> > >>> >: > > >> > >>> > > > > > > >> > >>> > > > > > > > >> > >>> > > > > > > > >> > >>> > > > > > 2017-07-11 11:04 GMT+02:00 Sijie Guo < > > guosi...@gmail.com > > >> >: > > >> > >>> > > > > > > > >> > >>> > > > > >> I think Netty4 requires more offheap memory. you > might > > >> need > > >> > to > > >> > >>> > tune > > >> > >>> > > > the > > >> > >>> > > > > >> JVM > > >> > >>> > > > > >> settings. I doubt that latency diff coming from the > JVM > > >> gc. > > >> > >>> > > > > >> > > >> > >>> > > > > >> A simple thing to verify that is to dump the gc log > by > > >> > adding > > >> > >>> " > > >> > >>> > > > > -Xloggc:" > > >> > >>> > > > > >> setting and compare the gc logs between versions. > > >> > >>> > > > > >> > > >> > >>> > > > > > > > >> > >>> > > > > > > > >> > >>> > > > > > Enabling G1 GC (-XX:+UseG1GC) apparently solves the > > >> > difference > > >> > >>> > > between > > >> > >>> > > > > 4.4 > > >> > >>> > > > > > and 4.5. > > >> > >>> > > > > > > > >> > >>> > > > > > And I a loop the bench (in order to have a warm JVM) > > >> numbers > > >> > >>> become > > >> > >>> > > > more > > >> > >>> > > > > > stable and similar to each other > > >> > >>> > > > > > > > >> > >>> > > > > > I have the "other issue" pending, the fact that > latency > > >> (time > > >> > >>> for > > >> > >>> > > > > > asynchAddEntry to complete) is really bad and > > >> unpredictable > > >> > >>> (from > > >> > >>> > 100 > > >> > >>> > > > ms > > >> > >>> > > > > to > > >> > >>> > > > > > 2000ms) > > >> > >>> > > > > > > > >> > >>> > > > > > and if I introduce a Thread.sleep(1) all the callbacks > > >> > complete > > >> > >>> > > always > > >> > >>> > > > > > with success in < 10ms. This happens even w -- -- Enrico Olivelli
