在 2010-11-30二的 01:07 +0800，Gregory Farnum写道：
> On Sun, Nov 28, 2010 at 7:25 PM, Jeff Wu <[email protected]> wrote:
> >
> > Hi ,
> >
> > I've recently been using FFSB and iozone to do performance test with Ceph
> > v0.23 on my platform.
> > the attachment file are FFSB configuration file and ceph.conf.
> So you're not using OSD journals in either test configuration? You're
> going to get pretty terrible write results without a journal.
> The reads are clearly slower than they should be and you could
> probably get better results by adjusting the caching behaviors. We
> haven't done too much work on optimizing read behavior.
Hi ,Greg , thank you for your suggestions.
>
> Could you run "ceph osd tell * bench", then run "ceph -w", and report
> the results? (That'll just run local benchmarking on the OSD to report
> the approximate write speed it's capable of.)
I run six times for the command: "$ sudo ceph osd tell 0/1 bench "
use "$ sudo ceph -w" to get the following results:
osd0 : [INF] bench: wrote 1024 MB in blocks of 4096 KB in 12.906598 sec
at 49775 KB/sec
osd1 : [INF] bench: wrote 1024 MB in blocks of 4096 KB in 21.023294 sec
at 49384 KB/sec
osd0 : [INF] bench: wrote 1024 MB in blocks of 4096 KB in 12.834682 sec
at 51535 KB/sec
osd1 : [INF] bench: wrote 1024 MB in blocks of 4096 KB in 20.792697 sec
at 37547 KB/sec
osd0 : [INF] bench: wrote 1024 MB in blocks of 4096 KB in 13.058412 sec
at 77191 KB/sec
osd1 : [INF] bench: wrote 1024 MB in blocks of 4096 KB in 21.113612 sec
at 47369 KB/sec
The detail test logs attached below.
> You can also run "rados -p data bench 60 write", and then "rados -p
> data bench 0 seq" to get a simpler (better understood) performance
> test.
I run twice for the command: "rados -p data bench 60 write" ,
Get the results:
$ sudo rados -p data bench 60 write
..........................
..........................
Total time run: 76.182225
Total writes made: 121
Write size: 4194304
Bandwidth (MB/sec): 6.219
Average Latency: 13.3068
Max latency: 23.9986
Min latency: 7.01847
$ sudo rados -p data bench 60 write
..........................
..........................
Total time run: 74.830651
Total writes made: 97
Write size: 4194304
Bandwidth (MB/sec): 4.714
Average Latency: 15.5064
Max latency: 24.5641
Min latency: 3.50005
but run "$ sudo rados -p data bench 0 seq"
fail to get the results, Maybe it's a bug,ceph version 0.23.
logs:
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
0 16 16 0 0 0 -
0
read got -2
error during benchmark: -2
./common/Mutex.h: In function 'Mutex::~Mutex()':
./common/Mutex.h:97: FAILED assert(nlock == 0)
ceph version 0.23 (commit:5d1d8d0c4602be9819cc9f7aea562fccbb005a56)
...............................
...............................
The detail logs addached below.
> With this data as a baseline we can start looking at what might be
> causing trouble.
> -Greg
==========================================================
1. Process
trans...@ubuntu-mon0:/usr/local/etc/ceph$ ps -ef
root 12919 1 2 Nov26 ? 02:23:45 /usr/local/bin/cmon -i 0
-c ceph.conf
root 12952 1 1 Nov26 ? 01:30:03 /usr/local/bin/cmon -i 1
-c ceph.conf
root 12987 1 1 Nov26 ? 01:51:42 /usr/local/bin/cmon -i 2
-c ceph.conf
root 13036 1 1 Nov26 ? 01:00:08 /usr/local/bin/cmds -i 0
-c ceph.conf
root 13075 1 0 Nov26 ? 00:47:47 /usr/local/bin/cmds -i 1
-c ceph.conf
==========================================================
2. ceph -w
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo ceph osd tell 0 bench
2010-11-30 08:47:09.080125 mon <- [osd,tell,0,bench]
2010-11-30 08:47:09.080378 mon1 -> 'ok' (0)
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo ceph osd tell 1 bench
2010-11-30 08:47:54.520159 mon <- [osd,tell,1,bench]
2010-11-30 08:47:54.520433 mon2 -> 'ok' (0)
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo ceph osd tell 0 bench
2010-11-30 08:48:29.590115 mon <- [osd,tell,0,bench]
2010-11-30 08:48:29.590365 mon2 -> 'ok' (0)
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo ceph osd tell 1 bench
2010-11-30 08:48:47.450092 mon <- [osd,tell,1,bench]
2010-11-30 08:48:47.450341 mon1 -> 'ok' (0)
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo ceph osd tell 0 bench
2010-11-30 08:49:27.240742 mon <- [osd,tell,0,bench]
2010-11-30 08:49:27.241076 mon1 -> 'ok' (0)
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo ceph osd tell 1 bench
2010-11-30 08:49:43.500749 mon <- [osd,tell,1,bench]
2010-11-30 08:49:43.501043 mon2 -> 'ok' (0)
trans...@ubuntu-mon0:/usr/local/etc/ceph$
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo ceph -w
2010-11-30 08:47:04.150457 pg v8701: 528 pgs: 528 active+clean; 10674
KB data, 442 MB used, 219 GB / 219 GB avail
2010-11-30 08:47:04.151228 mds e5: 1/1/1 up {0=up:active}, 1
up:standby
2010-11-30 08:47:04.151253 osd e6: 2 osds: 2 up, 2 in
2010-11-30 08:47:04.151319 log 2010-11-30 08:45:17.795260 osd0
172.16.10.42:6800/16864 3 : [INF] bench: wrote 1024 MB in blocks of 4096
KB in 12.828886 sec at 51682 KB/sec
2010-11-30 08:47:04.151375 mon e1: 3 mons at
{0=172.16.10.171:6789/0,1=172.16.10.171:6790/0,2=172.16.10.171:6791/0}
2010-11-30 08:47:22.487639 log 2010-11-30 08:47:00.704960 osd0
172.16.10.42:6800/16864 4 : [INF] bench: wrote 1024 MB in blocks of 4096
KB in 12.906598 sec at 49775 KB/sec
2010-11-30 08:48:17.047842 log 2010-11-30 09:52:29.975820 osd1
172.16.10.65:6800/6678 3 : [INF] bench: wrote 1024 MB in blocks of 4096
KB in 21.023294 sec at 49384 KB/sec
2010-11-30 08:48:42.915344 log 2010-11-30 08:48:21.135651 osd0
172.16.10.42:6800/16864 5 : [INF] bench: wrote 1024 MB in blocks of 4096
KB in 12.834682 sec at 51535 KB/sec
2010-11-30 08:49:10.000303 log 2010-11-30 09:53:22.645957 osd1
172.16.10.65:6800/6678 4 : [INF] bench: wrote 1024 MB in blocks of 4096
KB in 20.792697 sec at 37547 KB/sec
2010-11-30 08:49:40.809023 log 2010-11-30 08:49:19.005413 osd0
172.16.10.42:6800/16864 6 : [INF] bench: wrote 1024 MB in blocks of 4096
KB in 13.058412 sec at 77191 KB/sec
2010-11-30 08:50:06.184830 log 2010-11-30 09:54:19.064900 osd1
172.16.10.65:6800/6678 5 : [INF] bench: wrote 1024 MB in blocks of 4096
KB in 21.113612 sec at 47369 KB/sec
===========================================================
3. rados -p data bench 60 write
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo rados -p data bench 60
write
Maintaining 16 concurrent writes of 4194304 bytes for at least 60
seconds.
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
0 16 16 0 0 0 -
0
1 16 16 0 0 0 -
0
2 16 16 0 0 0 -
0
3 16 16 0 0 0 -
0
4 16 16 0 0 0 -
0
5 16 17 1 0.793474 0.8 7.9252
7.9252
6 16 17 1 0.662028 0 -
7.9252
7 16 17 1 0.567947 0 -
7.9252
8 16 24 8 3.97823 9.33333 10.5391
10.1201
9 16 24 8 3.53801 0 -
10.1201
10 16 38 22 8.76019 28 7.13522
9.96534
11 16 38 22 7.96645 0 -
9.96534
12 16 38 22 7.30461 0 -
9.96534
13 16 38 22 6.74431 0 -
9.96534
14 16 38 22 6.26388 0 -
9.96534
15 16 38 22 5.84735 0 -
9.96534
16 16 41 25 6.23039 2 8.7632
10.3001
17 16 41 25 5.86468 0 -
10.3001
18 16 41 25 5.53953 0 -
10.3001
19 16 52 36 7.55792 14.6667 10.3215
11.3923
min lat: 7.01847 max lat: 15.8599 avg lat: 11.3923
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
20 16 52 36 7.18061 0 -
11.3923
21 16 56 40 7.59925 8 13.7597
11.8294
22 16 56 40 7.25439 0 -
11.8294
23 16 56 40 6.93949 0 -
11.8294
24 16 56 40 6.65079 0 -
11.8294
25 16 63 47 7.50258 7 7.33881
11.2982
26 16 63 47 7.21441 0 -
11.2982
27 16 68 52 7.68667 10 9.28991
11.1051
28 16 68 52 7.41251 0 -
11.1051
29 16 68 52 7.15725 0 -
11.1051
30 16 68 52 6.91898 0 -
11.1051
31 16 68 52 6.69606 0 -
11.1051
32 16 79 63 7.85927 8.8 15.0751
11.933
33 16 79 63 7.62121 0 -
11.933
34 16 79 63 7.3973 0 -
11.933
35 16 79 63 7.18618 0 -
11.933
36 16 79 63 6.98678 0 -
11.933
37 16 84 68 7.33767 4 17.4944
12.3426
38 16 84 68 7.14464 0 -
12.3426
39 16 85 69 7.06399 2 8.24284
12.2832
min lat: 7.01847 max lat: 19.7384 avg lat: 12.2832
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
40 16 85 69 6.88751 0 -
12.2832
41 16 85 69 6.71971 0 -
12.2832
42 16 85 69 6.55985 0 -
12.2832
43 16 87 71 6.59315 2 15.8845
12.3846
44 16 87 71 6.44343 0 -
12.3846
45 16 87 71 6.30037 0 -
12.3846
46 16 87 71 6.16352 0 -
12.3846
47 16 91 75 6.37235 4 21.8578
12.8896
48 16 91 75 6.23967 0 -
12.8896
49 16 101 85 6.92742 20 18.2741
13.1211
50 16 101 85 6.78897 0 -
13.1211
51 16 101 85 6.65595 0 -
13.1211
52 16 101 85 6.52804 0 -
13.1211
53 16 101 85 6.40496 0 -
13.1211
54 16 111 95 7.02602 8 13.1645
12.939
55 16 111 95 6.89835 0 -
12.939
56 16 111 95 6.77524 0 -
12.939
57 16 111 95 6.65646 0 -
12.939
58 16 111 95 6.54176 0 -
12.939
59 16 115 99 6.70174 3.2 13.1073
12.9458
min lat: 7.01847 max lat: 21.8578 avg lat: 12.9364
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
60 16 120 104 6.92291 20 11.3313
12.9364
61 15 121 106 6.94046 8 13.3389
12.9444
62 15 121 106 6.82859 0 -
12.9444
63 15 121 106 6.72026 0 -
12.9444
64 15 121 106 6.61533 0 -
12.9444
65 15 121 106 6.51362 0 -
12.9444
66 11 121 110 6.65706 3.2 14.3524
12.9974
67 11 121 110 6.55777 0 -
12.9974
68 11 121 110 6.46139 0 -
12.9974
69 11 121 110 6.3678 0 -
12.9974
70 11 121 110 6.27689 0 -
12.9974
71 2 121 119 6.69486 7.2 13.2646
13.1676
72 2 121 119 6.60193 0 -
13.1676
73 2 121 119 6.51154 0 -
13.1676
74 2 121 119 6.4236 0 -
13.1676
75 2 121 119 6.338 0 -
13.1676
76 2 121 119 6.25465 0 -
13.1676
Total time run: 76.182225
Total writes made: 121
Write size: 4194304
Bandwidth (MB/sec): 6.219
Average Latency: 13.3068
Max latency: 23.9986
Min latency: 7.01847
trans...@ubuntu-mon0:/usr/local/etc/ceph$
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo rados -p data bench 60
write
Maintaining 16 concurrent writes of 4194304 bytes for at least 60
seconds.
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
0 16 16 0 0 0 -
0
1 16 16 0 0 0 -
0
2 16 16 0 0 0 -
0
3 16 17 1 1.31537 1.33333 3.50005
3.50005
4 16 17 1 0.989638 0 -
3.50005
5 16 17 1 0.793226 0 -
3.50005
6 16 17 1 0.661871 0 -
3.50005
7 16 17 1 0.567841 0 -
3.50005
8 16 17 1 0.497201 0 -
3.50005
9 16 17 1 0.442194 0 -
3.50005
10 16 17 1 0.398146 0 -
3.50005
11 16 17 1 0.362079 0 -
3.50005
12 16 25 9 2.98799 3.55556 12.0273
17.9704
13 16 27 11 3.37183 8 12.0974
16.8994
14 16 33 17 4.83996 24 12.8105
16.4478
15 16 33 17 4.5181 0 -
16.4478
16 16 33 17 4.2364 0 -
16.4478
17 16 33 17 3.98777 0 -
16.4478
18 16 33 17 3.76669 0 -
16.4478
19 16 38 22 4.6185 4 14.6053
16.0123
min lat: 3.50005 max lat: 20.9926 avg lat: 16.0123
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
20 16 38 22 4.38793 0 -
16.0123
21 16 38 22 4.17939 0 -
16.0123
22 16 38 22 3.98976 0 -
16.0123
23 16 38 22 3.81659 0 -
16.0123
24 16 38 22 3.65782 0 -
16.0123
25 16 47 31 4.94834 6 13.0266
15.7939
26 16 47 31 4.75829 0 -
15.7939
27 16 47 31 4.58231 0 -
15.7939
28 16 47 31 4.41888 0 -
15.7939
29 16 47 31 4.26672 0 -
15.7939
30 16 47 31 4.12467 0 -
15.7939
31 16 54 38 4.89315 4.66667 14.5712
16.1038
32 16 54 38 4.74042 0 -
16.1038
33 16 54 38 4.59694 0 -
16.1038
34 16 54 38 4.46188 0 -
16.1038
35 16 54 38 4.33454 0 -
16.1038
36 16 63 47 5.21238 7.2 12.2193
15.3573
37 16 66 50 5.39536 12 9.59416
15.0125
38 16 66 50 5.25352 0 -
15.0125
39 16 66 50 5.11895 0 -
15.0125
min lat: 3.50005 max lat: 24.5641 avg lat: 15.0125
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
40 16 66 50 4.99107 0 -
15.0125
41 16 66 50 4.86947 0 -
15.0125
42 16 73 57 5.41915 5.6 11.6831
14.5749
43 16 73 57 5.29323 0 -
14.5749
44 16 73 57 5.17304 0 -
14.5749
45 16 73 57 5.05817 0 -
14.5749
46 16 73 57 4.94831 0 -
14.5749
47 16 82 66 5.60781 7.2 14.1181
14.6534
48 16 82 66 5.49105 0 -
14.6534
49 16 82 66 5.37907 0 -
14.6534
50 16 82 66 5.27157 0 -
14.6534
51 16 82 66 5.16829 0 -
14.6534
52 16 82 66 5.06898 0 -
14.6534
53 16 88 72 5.42554 4 14.2779
14.6222
54 16 88 72 5.32512 0 -
14.6222
55 16 88 72 5.22837 0 -
14.6222
56 16 88 72 5.13507 0 -
14.6222
57 16 88 72 5.04505 0 -
14.6222
58 16 88 72 4.95812 0 -
14.6222
59 16 90 74 5.00954 1.33333 18.7183
14.808
min lat: 3.50005 max lat: 24.5641 avg lat: 14.8389
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
60 16 96 80 5.32549 24 16.2963
14.8389
61 16 96 80 5.23826 0 -
14.8389
62 16 96 80 5.15383 0 -
14.8389
63 16 96 80 5.07208 0 -
14.8389
64 13 97 84 5.24252 4 13.2043
15.0243
65 13 97 84 5.16191 0 -
15.0243
66 13 97 84 5.08375 0 -
15.0243
67 13 97 84 5.00792 0 -
15.0243
68 13 97 84 4.93432 0 -
15.0243
69 13 97 84 4.86285 0 -
15.0243
70 5 97 92 5.24994 5.33333 18.0332
15.3781
71 5 97 92 5.17604 0 -
15.3781
72 5 97 92 5.10419 0 -
15.3781
73 5 97 92 5.0343 0 -
15.3781
74 5 97 92 4.96631 0 -
15.3781
Total time run: 74.830651
Total writes made: 97
Write size: 4194304
Bandwidth (MB/sec): 4.714
Average Latency: 15.5064
Max latency: 24.5641
Min latency: 3.50005
trans...@ubuntu-mon0:/usr/local/etc/ceph$
===========================================================
4. rados -p data bench 0 seq
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo rados -p data bench 0 seq
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
0 16 16 0 0 0 -
0
read got -2
error during benchmark: -2
./common/Mutex.h: In function 'Mutex::~Mutex()':
./common/Mutex.h:97: FAILED assert(nlock == 0)
ceph version 0.23 (commit:5d1d8d0c4602be9819cc9f7aea562fccbb005a56)
1: rados() [0x40c941]
2: (exit()+0xe2) [0x7f518ea744f2]
3: (__libc_start_main()+0x105) [0x7f518ea59d95]
4: rados() [0x405b19]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is
needed to interpret this.
./common/Mutex.h: In function 'Mutex::~Mutex()':
./common/Mutex.h:97: FAILED assert(nlock == 0)
ceph version 0.23 (commit:5d1d8d0c4602be9819cc9f7aea562fccbb005a56)
1: rados() [0x40c941]
2: (exit()+0xe2) [0x7f518ea744f2]
3: (__libc_start_main()+0x105) [0x7f518ea59d95]
4: rados() [0x405b19]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is
needed to interpret this.
terminate called after throwing an instance of 'ceph::FailedAssertion'
*** Caught signal (ABRT) ***
ceph version 0.23 (commit:5d1d8d0c4602be9819cc9f7aea562fccbb005a56)
1: (sigabrt_handler(int)+0x91) [0x7f518fe7dec1]
2: (()+0x33c20) [0x7f518ea6ec20]
3: (gsignal()+0x35) [0x7f518ea6eba5]
4: (abort()+0x180) [0x7f518ea726b0]
5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f518f3126bd]
6: (()+0xb9906) [0x7f518f310906]
7: (()+0xb9933) [0x7f518f310933]
8: (()+0xb9a3e) [0x7f518f310a3e]
9: (ceph::__ceph_assert_fail(char const*, char const*, int, char
const*)+0x456) [0x7f518fe5ab96]
10: rados() [0x40c941]
11: (exit()+0xe2) [0x7f518ea744f2]
12: (__libc_start_main()+0x105) [0x7f518ea59d95]
13: rados() [0x405b19]
Aborted
trans...@ubuntu-mon0:/usr/local/etc/ceph$
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo rados -p data bench 60
seq
sec Cur ops started finished avg MB/s cur MB/s last lat avg
lat
0 16 16 0 0 0 -
0
read got -2
error during benchmark: -2
./common/Mutex.h: In function 'Mutex::~Mutex()':
./common/Mutex.h:97: FAILED assert(nlock == 0)
ceph version 0.23 (commit:5d1d8d0c4602be9819cc9f7aea562fccbb005a56)
1: rados() [0x40c941]
2: (exit()+0xe2) [0x7f795c31c4f2]
3: (__libc_start_main()+0x105) [0x7f795c301d95]
4: rados() [0x405b19]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is
needed to interpret this.
./common/Mutex.h: In function 'Mutex::~Mutex()':
./common/Mutex.h:97: FAILED assert(nlock == 0)
ceph version 0.23 (commit:5d1d8d0c4602be9819cc9f7aea562fccbb005a56)
1: rados() [0x40c941]
2: (exit()+0xe2) [0x7f795c31c4f2]
3: (__libc_start_main()+0x105) [0x7f795c301d95]
4: rados() [0x405b19]
NOTE: a copy of the executable, or `objdump -rdS <executable>` is
needed to interpret this.
terminate called after throwing an instance of 'ceph::FailedAssertion'
*** Caught signal (ABRT) ***
ceph version 0.23 (commit:5d1d8d0c4602be9819cc9f7aea562fccbb005a56)
1: (sigabrt_handler(int)+0x91) [0x7f795d725ec1]
2: (()+0x33c20) [0x7f795c316c20]
3: (gsignal()+0x35) [0x7f795c316ba5]
4: (abort()+0x180) [0x7f795c31a6b0]
5: (__gnu_cxx::__verbose_terminate_handler()+0x11d) [0x7f795cbba6bd]
6: (()+0xb9906) [0x7f795cbb8906]
7: (()+0xb9933) [0x7f795cbb8933]
8: (()+0xb9a3e) [0x7f795cbb8a3e]
9: (ceph::__ceph_assert_fail(char const*, char const*, int, char
const*)+0x456) [0x7f795d702b96]
10: rados() [0x40c941]
11: (exit()+0xe2) [0x7f795c31c4f2]
12: (__libc_start_main()+0x105) [0x7f795c301d95]
13: rados() [0x405b19]
Aborted
trans...@ubuntu-mon0:/usr/local/etc/ceph$ sudo rados -p data bench 60
rand
Random test not implemented yet!
error during benchmark: -1
trans...@ubuntu-mon0:/usr/local/etc/ceph$
Best Regards
Jeff.Wu
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