Do you have any metrics monitoring of the JVM? There can be any number of reason why sites are "sluggish" at times. Blindly altering the JVM settings may not help you and may hurt your cause.
You can enable metrics logging in ColdFusion Standard by editing the JRUN.XML file. http://cfwhisperer.net/post.cfm/10-steps-to-a-stable-and-performant-web-application-step-2 You can download and run CFTracker http://www.cftracker.net You can install the Trial of Fusion Reactor or SeeFusion. All of these will give you greater insight into your server, JVM inner memory spaces and the last two can give you metrics data on the JDBC data. Odds are ColdFusion is keeping just fine. In most cases that I've worked on there are outside factors affecting the server; database, system I/O, backups, network issues, cfhttp calls, over active spiders, unexpected consequences of code when scaled etc. Regards, Wil Genovese Sr. Web Application Developer/ Systems Administrator CF Webtools www.cfwebtools.com [email protected] www.trunkful.com On Aug 29, 2012, at 7:38 PM, Robert Rhodes wrote: > > Yes: Java HotSpot(TM) 64-Bit Server VM > > How about I try setting min and max heap size to 2gb and see how that goes? > Anything else I should tweak? Garbage Collection? > > On Wed, Aug 29, 2012 at 8:05 PM, .jonah <[email protected]> wrote: > >> >> Are you running 64bit Java? >> >> You can give the JVM as much RAM as you can spare. >> >> >> On 8/29/12 4:56 PM, Robert Rhodes wrote: >>> Hello to all. >>> >>> I have several Windows 2008 R2 x64 servers running Coldfusion 9 standard. >>> Each has 6 gigabytes of RAM. Each runs about 50 fairly active sites. >> I >>> have not had any JVM errors I know about but sometimes the sites run >> slower >>> than they should, as if CF is having trouble keeping up. >>> >>> Any suggestions on JVM settings for this configuration? Currently, I >> have >>> Min and Max JVM size both set at 1GB. I have changed no other arguments. >>> >>> Thanks for the help. >>> >>> -RR >>> >>> >>> >> >> > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Order the Adobe Coldfusion Anthology now! http://www.amazon.com/Adobe-Coldfusion-Anthology/dp/1430272155/?tag=houseoffusion Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:352345 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
