Yeah, I only installed SeeFusion so I could get some idea of what was going on with the jvm. The problem existed before I installed SeeFusion.
Andrew -----Original Message----- From: cfaussie@googlegroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Steve Onnis Sent: Friday, 10 August 2007 1:04 PM To: cfaussie@googlegroups.com Subject: [cfaussie] Re: Memory leak?? Have you tried this without seefusion running or even installed? From memory the server monitoring add a lot of overhead to the system Steve -----Original Message----- From: cfaussie@googlegroups.com [mailto:[EMAIL PROTECTED] On Behalf Of Andrew Bateman Sent: Friday, 10 August 2007 12:18 PM To: cfaussie Subject: [cfaussie] Memory leak?? Have just installed CFMX 7.0.2 on a dedicated server and have put it through its paces with some load testing. This identified what appears to be a significant memory leak. To test this, I created a simple page that creates an instance of a cfc "Test.cfc". I then call a method in Test.cfc which creates 1000 further instances of Test.cfc and adds them to a "var" scoped variable within the function. Further, I run a loop which executes this 10, times, meaning that 10,000 instances of "Test" are created for each request (see listing below). To really spice things up, I execute this page 20 times in a row, thus creating 1000 * 10 * 20 = 200000 instances of Test.cfc. See listing below. What I expected to see is RAM usage spiking then dropping off after each page request, as garbage collection occurs. I am running SeeFusion, which reports on jvm memory usage by ColdFusion and this tells me that this is behaving as expected [i.e. memory is allocated/ deallocated from the heap]. However, the Task Manager tells me a different story. Basically the RAM assigned to Jrun.exe keeps growing in a linear fashion, until the server runs out of RAM and grinds to a halt. Has anyone else experienced a similar issue and if so do you know of a resolution? it seems a similar problem to that documented by Mike Schierbel (http://www.schierberl.com/cfblog/index.cfm/2006/10/12/ ColdFusion_memoryLeak_profiler) , but none of the resolutions he proposed have had any effect on my server. FYI, running CF Mx 7.0.2 Standard Edition on a single CPU dual core Xeon with 2GB of RAM. I have also applied the cumulative Hot Fixes for 7.0.2 . ****************************** LISTING ****************************** -------------------------- Application.cfm -------------------------- <cfapplication name="LoadTesting" sessionmanagement="true"> -------------------------- LoadTest.cfm -------------------------- <cfparam name="variables.test" default="#createObject('component','test').init()#" /> <cfset foo = StructNew()> <cfparam name="session.counter" default="1"> <cfscript> for (i=1; i LTE 10;i=i+1){ foo[CreateUuid()] = variables.test.LoadTest(); } </cfscript> <!--- this should help, but doesn't ---> <cfset StructClear(variables)> <cfoutput>done #session.counter# iterations</cfoutput> <cfif session.counter LTE 20> <cfset session.counter = session.counter + 1> <cflocation url="LoadTest.cfm"> <cfelse> <cfset session.counter = 1> </cfif> -------------------------- Test.cfc -------------------------- <cfcomponent output="false"> <cffunction name="init"> <cfreturn this/> </cffunction> <cffunction name="LoadTest" returntype="array"> <cfscript > var ret = ArrayNew(1); var i=1; for(i=1;i LTE 1000;i=i+1 ){ ArrayAppend(ret,CreateObject("component","Test").init()); } return ret; </cfscript> </cffunction> </cfcomponent> --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "cfaussie" group. To post to this group, send email to cfaussie@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/cfaussie?hl=en -~----------~----~----~----~------~----~------~--~---
