On 7/14/2016 1:41 PM, André Warnier (tomcat) wrote:
Hi Java GC gurus.
I am coming for a bit of expert advice, not for a problem.
At some customer site, some applications appear to react somewhat
slowly sometimes, although these are not very heavy applications, and
traffic on the site is also not very high.
Amog several other things I'm looking at, wondering if this might have
something to do with Java/Tomcat running out of memory, and perhaps
doing excessive GC's, I set up GC logging.
Below I am pasting that small Java GC log.
This is running tomcat 6 still, the java versions and tomcat JVM
relevant switches are shown in the log.
I am starting the tomcat JVM with "-Xms1024M -Xmx1024M", and no other
non-default settings regarding memory management or GC type.
I take it that in the log below, the first number on the left is a
timestamp in "seconds , thousands of a second".
What version of java are you running under? Since you're running a very
old Tomcat version, you might be running an old java too, and Java
itself has had some significant performance improvements over the years.
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