Hi all
Thanks for reading this post.
We are currently having 2 requirements that are opposites. The first
requirement is performance under high loads and the other one is equivalent
performance for 1 request.
Our prod env currently uses Apache with mod_jk and ajp 1.3 to Tomcat 6.0.26 and
jdk 1.6.0_18 on solaris.
We're scaling to satisfactory loads of 250 concurrent requests serving pages in
0.5 seconds.
The other test scenario is where the tomcat instance is kept idle and a single
request is sent in every 90 or so seconds. In this case, the response takes
about 8 seconds out of which about 6 seconds cannot be tracked.
As the result, what we're finding is that under high loads, it performs well
but under very low loads, it does not.
This definitely happens in the tomcat layer as we've used the
FastCommonAccessLogValve logger which gives the time for the request in Tomcat.
The connector properties are protocol="AJP/1.3" maxThreads="150"
minSpareThreads="25" maxSpareThreads="75" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true"
useBodyEncodingForURI="true".
I was wondering whether anyone would be able to help with this issue.
Thanks in advance
VM
