Free/Total Memory counter in Rollbase System Console

Posted by jbeisch on 07-Jul-2017 14:09

What is the Free/Total Memory counter in the Rollbase System Console "servers" section a measure of?  It seems the the "total" is a high water mark or the like as it fluctuates with the "free".  The "total" also doesn't match our JVM settings or server settings.


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Posted by Karthikeyan Bhaskaran on 09-Jul-2017 22:31
Hello Jeff,

Could you please provide a screenshot of what you see? Also, where applicable, could you please provide and a listing of the actual values vs observed?

Posted by jbeisch on 10-Jul-2017 11:48

A Top at the point in time:

top - 12:41:30 up 97 days, 14:09,  1 user,  load average: 0.00, 0.01, 0.05
Tasks: 172 total,   1 running, 170 sleeping,   0 stopped,   1 zombie
%Cpu(s):  0.0 us,  0.0 sy,  0.0 ni,100.0 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem : 14973084 total,  5323064 free,  2775804 used,  6874216 buff/cache
KiB Swap:        0 total,        0 free,        0 used. 11755064 avail Mem

A ps aux at the point time:

root      9852  2.6 17.1 10406412 2565428 ?    Sl   Jul06 137:31 //bin/java -Djava.util.logging.config.file=/rollbase/application/4530/conf/ -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -classpath /rollbase/application/4530/bin/bootstrap.jar:/rollbase/application/4530/bin/tomcat-juli.jar -Dcatalina.base=/rollbase/application/4530 -Dcatalina.home=/rollbase/application/4530 org.apache.catalina.startup.Bootstrap start

We don't specify -Xm values so I don't know the exact perm size it would be but it's generally about 1/4 of RAM.

This is the column I'm asking about.  The numbers are changing on each refresh of the page, both of them.  But they're not matching any other numbers I can see and for the second number to change, it's not a hard limit.

Posted by jbeisch on 10-Jul-2017 11:49

Sorry, don't know why the image didn't post.  It's the Free/Total Memory column on the System Console dash board.  At the time of the above samples it read 302.0 MB/971.0 MB

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