Have you increased the MaxClients directive? The defaults will keep your requests queued, waiting for a previous connection to finish even when you have lots of CPU just idling.
But beware: just increasing MaxClients without paying attention to memory consumption can kill your box. Disable all unused modules (and there's a lot of them), restart your IHS, look how much memory it is using to calculate how high your MaxClients can be. Use "ps -ylC httpd --sort:rss" and look at the RSS column. it will show memory usage by httpd in kB. After that, divide the available memory by the consumption and you will get the TEORETICAL MaxClients value. Use a couple less than that, or you could end up shooting your server in the head. Change the MaxClients directive, restart, re-test, report... Mauro http://mauro.limeiratem.com - registered Linux User: 294521 Scripture is both history, and a love letter from God. On Mon, Oct 10, 2011 at 9:27 AM, David Boyes <[email protected]> wrote: >> We have a IHS-WAS combo with an application. >> Max throughput is about 500/second, but cpu is not high, it's plenty of cpu >> available. >> Why don't we get more ? >> We have fiddled with tcpip config, buffer count sizes and similar. > > If you have a Java profiler, now would be the time to use it. I'd suspect > there's something doing a lot of session setup/teardown, or something is > happening that demands a lot of support from WAS that is limiting how > frequently you're able to do a session. You might check the WAS settings too > -- I have a dim memory of there being a default session limit. > > ---------------------------------------------------------------------- > For LINUX-390 subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO LINUX-390 or visit > http://www.marist.edu/htbin/wlvindex?LINUX-390 > ---------------------------------------------------------------------- > For more information on Linux on System z, visit > http://wiki.linuxvm.org/ > ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
