I have a recent one one to add to this list: http://www.coldfusionmuse.com/index.cfm/2008/2/12/leaky.heap.jvm
Good luck.. -Mark -----Original Message----- From: Cutter (CFRelated) [mailto:[EMAIL PROTECTED] Sent: Wednesday, March 05, 2008 12:14 PM To: CF-Talk Subject: Re: Slow machine - JRun? Michael, you are not alone. Many of us have dealt with JRun suddenly hitting the ceiling, typically from increased traffic or changes to our systems or application architecture. Have you, as yet, spent any time tuning your JVM? Heavily searched through your application for possible memory leaks? In our continued efforts to optimize our application's performance, I've started collecting some bookmarks of interesting posts across the blogosphere. Especially interesting was this posting from Jason Sheedy, and the comments that follow: http://www.jmpj.net/jason/index.cfm/2007/4/14/Cold-Fusion-Memory-Leak There was a follow up that he put out in the middle of those comments: http://www.jmpj.net/jason/index.cfm/2007/5/11/Cold-Fusion-Memory-Leak-Contin ued And some additional reads after that might be: http://www.petefreitag.com/articles/gctuning/ http://www.webapper.net/index.cfm/2006/6/8/20060606021131 http://www.robisen.com/index.cfm/2006/5/26/More-on-ColdFusion-tuning-and-cla rifying-JRUNXML-settings http://www.talkingtree.com/blog/index.cfm?mode=alias&alias=ContextSwitchingB ad Some of this is dated, but almost all of it still applies. Another item to consider is what version of the JVM you are using. If you are running CF8, which ships with 1.6, there are several reports of improved performance when dropping back to using the 1.5 JVM. Details on how to change which JVM CF utilizes can be found here: http://www.forta.com/blog/index.cfm?mode=entry&entry=A61BAA93-3048-80A9-EF73 06C155FD29F4 None of the things talked about in the above posts are for the uninitiated or the faint of heart. Back up everything. There are also several organizations/contractors who might assist you with your issues. Charlie Arehart can provide phone, and higher level, support. Webapper has been doing that sort of work for quite some time. The guys at Alagad have an extremely talented staff. If you happen to ask one of these folks for help then please let them know I sent ya;) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Adobe® ColdFusion® 8 software 8 is the most important and dramatic release to date Get the Free Trial http://ad.doubleclick.net/clk;160198600;22374440;w Archive: http://www.houseoffusion.com/groups/CF-Talk/message.cfm/messageid:300545 Subscription: http://www.houseoffusion.com/groups/CF-Talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
