Hi,
Just run some benchmarks against Tomcat 3.3-m1 :
Server was a Linux Redhat 6.2 box with PIII/800 + 256Mo.
128Mo were allocated to tomcat :
All tests conducted with ab :
ab -c 10 -n 1000 host
Test with Apache 1.3.17 and Apache 2.0.alpha12
mod_jk log desactivated with JkLogLevel error instead of warn
Apache 1.3 serving index.html
Requests per second: 192.64
Apache 2.0 serving index.html
Requests per second: 180.08
Tomcat serving HelloWorld directly (no ajp)
Requests per second: 954.20
Tomcat serving HelloWorld via Apache 1.3 + mod_jk + ajp13
Requests per second: 427.17 (cachesize = 1)
Requests per second: 481.46 (cachesize = 16)
Tomcat serving HelloWorld via Apache 2.0 + mod_jk + ajp13
Requests per second: 504.54 (cachesize = 1)
Requests per second: 474.83 (cachesize = 16)
Tomcat serving HelloWorld via Apache 1.3 + mod_jk + ajp12
Requests per second: 9.63 (something bad there ?)
Tomcat serving HelloWorld via Apache 2.0 + mod_jk + ajp12
Requests per second: 24.00 (something bad there ?)
Example Servlet info :
Document Path: /examples/servlet/HelloWorldExample
Document Length: 406 bytes
Concurrency Level: 10
Complete requests: 1000
Failed requests: 0
Total transferred: 645645 bytes
HTML transferred: 406406 bytes
Static info:
Document Path: /index.html
Document Length: 1520 bytes
Concurrency Level: 10
Complete requests: 1000
Failed requests: 0
Total transferred: 2004000 bytes
HTML transferred: 1520000 bytes
Some conclusion :
- The Tomcat HTTP connector is the clear winner and if its optimisations
are ported back to ajp we may see something good here
- Apache 2.0 is not faster than Apache 1.3 but it's still in Alpha release.
- The c set to 16 didn't show any improvement but test must
be reconducted with ab using -k flag (HTTP KeepAlive feature)
- ajp12 show a strange comportment and must be investigated further -(
Future benchs :
I plan to do the same tests but using LoadBalancing features of mod_jk
against 3 tomcat running on same server configurations
(Redhat 6.2, PIII/800, 256Mo, TC use 128mo)
Also use the HTTP KeepAlive feature to see if cachesize show improvment.
Regards
benchs.zip
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