Ming Lu,
I don't think there is an easy way to determine what application/site
those session belong to. There are some things you can do to get a
better idea of the memory load of a particular session. Here's a code
snippet of something we've done on different sites to determine how much
a certain page request increases our memory footprint. Make sure you
don't use this on a production server, since the force garbage
collection really slows down your application.
<cfset runtime = CreateObject("java","java.lang.Runtime").getRuntime()>
<cfset freeMemory = runtime.freeMemory() / 1024 / 1024>
<cfset totalMemory = runtime.totalMemory() / 1024 / 1024>
<cfset maxMemory = runtime.maxMemory() / 1024 / 1024>
<cfoutput>
Free Allocated Memory: #Round(freeMemory)#mb<br>
Total Memory Allocated: #Round(totalMemory)#mb<br>
Max Memory Available to JVM: #Round(maxMemory)#mb<br>
Memory In Use: #Round(totalMemory-freeMemory)#mb<br>
</cfoutput>
NOW DO PAGE PROCESSING.....
<cfset runtime.gc() /> <!--- now do garbage collection. To make sure
numbers are accurate --->
<cfset freeMemory = runtime.freeMemory() / 1024 / 1024>
<cfset totalMemory = runtime.totalMemory() / 1024 / 1024>
<cfset maxMemory = runtime.maxMemory() / 1024 / 1024>
<cfoutput>
Free Allocated Memory: #Round(freeMemory)#mb<br>
Total Memory Allocated: #Round(totalMemory)#mb<br>
Max Memory Available to JVM: #Round(maxMemory)#mb<br>
Memory In Use: #Round(totalMemory-freeMemory)#mb<br>
</cfoutput>
Leon
-----Original Message-----
From: Ming Lu [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 07, 2006 1:54 PM
To: CF-Talk
Subject: Re: JRun High Memory Usage on CFMX 7
Hi Leon,
Thank you so much for your input.
[1]. I checked our Windows Server 2003 for Available Bytes counter,
Handle Count, Pool Nonpaged Bytes, Pool Paged Bytes, and Private Bytes
counters. None of these has a consistently increasing curve, so it does
not look like it has memory leak.
[2]. For The jvm.config file in the bin directory in JRun, the -Xmx
setting has been setup at -Xmx512m, but the problem is still there.
[3]. According to our programmer, we have already used the application
variables where we could. Do you know if there is a way to find out
which site(s) those opened sessions belong to and are from which page?
Thank you very much for your help!
Ming Lu
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