[rhn-users] memory management on RHE3
Lamon, Frank III
Frank_LaMon at csx.com
Tue May 31 19:34:38 UTC 2005
It's probably being used for cache
cat /proc/meminfo to find out
-----Original Message-----
From: rhn-users-bounces at redhat.com
[mailto:rhn-users-bounces at redhat.com]On Behalf Of Darek Czarkowski
Sent: Tuesday, May 31, 2005 3:27 PM
To: rhn-users at redhat.com
Subject: [rhn-users] memory management on RHE3
I have a problem with performance on RHE3 web server. Current Kernel is
2.4.21-27.0.4.ELsmp
Free -m shows:
.. total used free shared buffers cached
Mem: 5897 5839 57 0 283 4653
-/+ buffers/cache: 902 4994
Swap: 12001 0 12001
Server is running postgresql-7.3.4, jakarta-tomcat-4.1.31 and java
j2sdk1.4.2_08, apache 2 with mod_jk. There is also small ftp activity.
JVM parameters used are TOMCAT_OPTS="-Xms1640m -Xmx2048m"
When the server is rebooted, output of free shows about 500M used
memory, when tomcat is started up it only takes/commits small amount of
memory.
After a few days however the free output is as above.
I don't know where the rest of the memory is allocated, I am not sure
how to trace what is using it. If you can not answer my questions can
you tell me where can I find resources that would help me to
troubleshoot my problems?
DarekC
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