This does not necessarily mean anything Don. It could simply mean migration from eden to persistent memory where GC recovers in due course. It's the overall pattern of GC recovery that means the most when talking about gross numbers. You should see a saw tooth pattern over time with steep drops as memory is recovered on the heap. Problems arise when the drop does not level off (it recovers less and less memory each time - i.e. a memory "leak") or when the top side of the heap is too lean (i.e. the heap is too small for it's overall usage pattern). But keying in on a big dump of objects into perm heap isn't necessarily going to give you information that you can use.
Mark Kruger - CFG CF Webtools www.cfwebtools.com www.coldfusionmuse.com O: 402.932.3318 E: [email protected] Skype: markakruger -----Original Message----- From: Don [mailto:[email protected]] Sent: Tuesday, December 02, 2014 9:36 AM To: cf-talk Subject: Re: how to diagnose a potential bottleneck Doesnt seem anyone noticed my reply so I'll post this again... I noticed a sharp drop in JVM memory during this process ( it all happened in about one minute ) Say from the average JVM Freememory of : 255 Megs Dropping to around : 30 Megs Any thoughts or ideas? It did come back up to normal levels, but the rate of the drop has me concerned. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 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:359740 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
