Am 20.04.2016 um 12:55 schrieb Ravi Chandra Suryavanshi:
Yes I tried the NIO and NIO2 but not seen much difference. The TPS only
increased 3K with NIO2.
Can you try it with nio enabled in tomcat 6 and see, if that is slower,
too? Same with bio and tomcat 8 and see if it is better?
Regards,
Felix
-----Original Message-----
From: Igor Cicimov [mailto:icici...@gmail.com]
Sent: Wednesday, April 20, 2016 4:21 PM
To: Tomcat Users List
Subject: RE: performance of tomcat 8 is less than tomcat 6
On 20 Apr 2016 1:30 pm, "Ravi Chandra Suryavanshi" <
ravi.chandra.suryavan...@ericsson.com> wrote:
Hi Christopher,
PFA, the requested XMLs. Just want to highlight that tomcat 8 is not
able to use the CPU usage. I have tried maxThread 200,300,400 but result is
same sometimes even less TPS.
Regards,
Ravi
-----Original Message-----
From: Christopher Schultz [mailto:ch...@christopherschultz.net]
Sent: Tuesday, April 19, 2016 7:38 PM
To: Tomcat Users List
Subject: Re: performance of tomcat 8 is less than tomcat 6
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Ravi,
On 4/19/16 1:04 AM, Ravi Chandra Suryavanshi wrote:
Hi, I am using tomcat 6 in my product. I am planning to upgrade to
tomcat 8 as tomcat is going to EoS in Dec-2016. I have just taken
the performance of Tomcat 8 and found the 70% less performance
compared to tomcat 6. See the below results Tomcat 6 is giving
167473.2/s whereas tomcat 8 is giving 100436.6/s I have just
compared with two standalone tomcat which is just hitting the
HelloWorld servlet available in example.
Kindly let me know what need to configure to boost the performance.
Following are my setup: Java=Java 8 HttpClient=HttpClient4 Benchmark
tool=jmeter
testserver:~# uname -a Linux testserver 3.10.0-229.el7.x86_64 #1 SMP
Thu Jan 29 18:37:38 EST 2015 x86_64 x86_64 x86_64 GNU/Linux
testserver:~# lscpu Architecture: x86_64 CPU op-mode(s):
32-bit, 64-bit Byte Order: Little Endian CPU(s):
32 On-line CPU(s) list: 0-31 Thread(s) per core: 2 Core(s) per
socket: 8 Socket(s): 2 NUMA node(s): 2
Vendor ID: GenuineIntel CPU family: 6 Model:
63 Model name: Intel(R) Xeon(R) CPU E5-2640 v3 @
2.60GHz Stepping: 2 CPU MHz: 2600.000
BogoMIPS: 5210.53 Virtualization: VT-x L1d
cache: 32K L1i cache: 32K L2 cache:
256K L3 cache: 20480K NUMA node0 CPU(s):
0-7,16-23 NUMA node1 CPU(s): 8-15,24-31
testserver:~# vmstat -s 131730840 K total memory 5931052 K used
memory
7126352 K active memory 5511616 K inactive memory 116069376 K free
memory 20888 K buffer memory 9709520 K swap cache 11681788 K total
swap 0 K used swap 11681788 K free swap 54069797 non-nice user cpu
ticks 997 nice user cpu ticks 9712353 system cpu ticks
15112937897 idle cpu ticks 37101 IO-wait cpu ticks 73 IRQ cpu ticks
21245 softirq cpu ticks 0 stolen cpu ticks 8918100 pages paged in
267868897 pages paged out 0 pages swapped in 0 pages swapped out
4281536287 interrupts 4185543972 CPU context switches
1456296771 boot time 84815522 forks
Tomcat 6 performance
Linux 3.10.0-229.el7.x86_64 (testserver) 04/19/2016
_x86_64_ (32 CPU) 05:36:33 PM CPU %user %nice
%system %iowait %steal %idle 05:36:38 PM all 37.66
0.00 14.69 0.10 0.00 47.55 05:36:43 PM all
37.61 0.00 14.50 0.01 0.00 47.89 05:36:48 PM
all 38.31 0.00 14.48 0.03 0.00 47.19
05:36:53 PM all 37.45 0.00 14.53 0.01
0.00 48.01 05:36:58 PM all 37.97 0.00 14.67
0.02 0.00 47.34 05:37:03 PM all 37.68 0.00
14.62 0.01 0.00 47.69
Created the tree successfully using HTTPRequest.jmx Starting the
test @ Wed Apr 13 17:34:58 CEST 2016 (1460561698701) Waiting for
possible shutdown message on port 4445 summary + 16181 in 1.3s =
12893.2/s Avg: 0 Min: 0 Max: 67 Err: 0 (0.00%)
Active: 3 Started: 3 Finished: 0 summary + 5187350 in 30s =
172911.7/s Avg: 0 Min: 0 Max: 31 Err: 0 (0.00%)
Active: 24 Started: 24 Finished: 0 summary = 5203531 in 31.3s =
166486.4/s Avg: 0 Min: 0 Max: 67 Err: 0 (0.00%)
summary + 5207210 in 30s = 173573.7/s Avg: 0 Min: 0 Max:
26 Err: 0 (0.00%) Active: 24 Started: 24 Finished: 0 summary =
10410741 in 61.3s = 169957.4/s Avg: 0 Min: 0 Max: 67
Err: 0 (0.00%) summary + 5039715 in 30s = 167990.5/s Avg:
0 Min: 0 Max: 13 Err: 0 (0.00%) Active: 24 Started: 24
Finished: 0 summary = 15450456 in 91.3s = 169310.8/s Avg: 0
Min: 0 Max: 67 Err: 0 (0.00%) summary + 5024196 in
30s = 167473.2/s Avg: 0 Min: 0 Max: 22 Err: 0
(0.00%) Active: 24 Started: 24 Finished: 0 summary = 20474652 in
121s = 168856.1/s Avg: 0 Min: 0 Max: 67 Err: 0
(0.00%)
--------------------------------------------------------------------
--
-
----------------------------------------------------------------------
--
- ----------------
tomcat 8
Linux 3.10.0-229.el7.x86_64 (testserver) 04/19/2016
_x86_64_ (32 CPU)
06:14:36 PM CPU %user %nice %system %iowait
%steal %idle 06:14:41 PM all 24.10 0.00 9.39
0.01 0.00 66.51 06:14:46 PM all 24.62 0.00
9.25 0.00 0.00 66.13 06:14:51 PM all 24.66
0.00 9.12 0.01 0.00 66.22 06:14:56 PM all
23.96 0.00 9.36 0.08 0.00 66.60 06:15:01 PM
all 24.78 0.00 9.52 0.01 0.00 65.69
06:15:06 PM all 23.86 0.00 9.24 0.03
0.00 66.87
Created the tree successfully using HTTPRequest.jmx Starting the
test @ Wed Apr 13 18:12:41 CEST 2016 (1460563961583) Waiting for
possible shutdown message on port 4445 summary + 1600892 in 18.4s
= 87104.4/s Avg: 0 Min: 0 Max: 1040 Err: 0 (0.00%)
Active: 24 Started: 24 Finished: 0 summary + 3102671 in 30s =
103422.4/s Avg: 0 Min: 0 Max: 9 Err: 0 (0.00%)
Active: 24 Started: 24 Finished: 0 summary = 4703563 in 48.4s =
97223.2/s Avg: 0 Min: 0 Max: 1040 Err: 0 (0.00%)
summary + 3090174 in 30s = 103005.8/s Avg: 0 Min: 0 Max:
9 Err: 0 (0.00%) Active: 24 Started: 24 Finished: 0 summary =
7793737 in 78.4s = 99436.5/s Avg: 0 Min: 0 Max: 1040 Err:
0 (0.00%) summary + 3091476 in 30s = 103049.2/s Avg: 0 Min:
0 Max: 10 Err: 0 (0.00%) Active: 24 Started: 24 Finished: 0
summary = 10885213 in 108s = 100436.6/s Avg: 0 Min: 0
Max: 1040 Err: 0 (0.00%)
Regards, Ravi
Can you post your server.xml configurations for each of Tomcat 6 and
Tomcat 8?
- -chris
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Did you try the nio connector instead nio2 ?
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