[jboss-user] [Tomcat, HTTPD, Servlets & JSP] - Re: servlet: how to spawn all processors
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Thu Aug 21 09:31:40 EDT 2008
"kjkoster" wrote : "john_woo at canada.com" wrote : I did try the affinity setting (to 4 cpus for the app), but only 1-2 cpu busy. I guessed b/c all threads running in the same process from the main servlet.
| There is a fair chance that your application is not as thread-able as you think it is. Do you do any manual synchronisation, or do you make heavy use of libraries that do internal synchronisation?
| Use JConsole to check that you are not exhausting the Tomcat connector thread pools (or other pools)
| Also, check that you are running with the server VM http://www.java-monitor.com/forum/showthread.php?t=18.
Thanks lots for the info, kjkoster.
However, the -server or GC option didn't help. As metioned, running in multi-cores is very slow. and 1-2 cpus keep busy, which is not happened in 1-2 cores machine. The only thing I can think of is the JVM, RTSJ. or even 32/64 bits issue.
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