In the "old days," the wisdom was to make min and max match so that CF wasn't spending "horsepower" constantly re-sizing the heap. Is that no longer true?
On Thu, Mar 5, 2015 at 7:08 PM, Dave Watts <dwa...@figleaf.com> wrote: > > > > > Hi. So we're moving from ACF10 32 bit to ACF10 64 bit. On ACF10 32 > bit, > > > > we settled on: > > > > > > > > Minimum JVM Heap Size (in MB) 1369 > > > > Maximum JVM Heap Size (in MB) 1369 > > > > > > > > On the ACF10 64 bit box, we have 32 GB of RAM to play with. Given > that > > > > this box is just: > > > > > > > > ACF10 > > > > The OS (Windows Server 2012) > > > > FusionReactor > > > > > > > > ...what's the best recommendation(s) for min/max heap to guarantee > ACF10 > > > > always has as much RAM as it could possible want/need? > > > > > > This question requires more information. How much memory did your > > > application use in the 32-bit environment? Were you having > > > out-of-memory issues in the old enviroment? > > > > > > Just because you have loads of memory doesn't mean you want CF to have > > > to manage it all, unless it's going to use it. > > > > In the last week, we maxed out at 960 MB. > > OK, so maybe you'd leave the minimum heap size right around where it > is now, and increase the maximum by 1.5 or 2 times the current value - > these are just guesses, of course. See how that works, then change > accordingly. > > If you're using Java 8 (which you can with the latest CF patches), you > might want to look at your PermGen settings, as Java 8 doesn't really > have a permanent generation any more. > > Dave Watts, CTO, Fig Leaf Software > 1-202-527-9569 > http://www.figleaf.com/ > http://training.figleaf.com/ > > Fig Leaf Software is a Service-Disabled Veteran-Owned Small Business > (SDVOSB) on GSA Schedule, and provides the highest caliber vendor- > authorized instruction at our training centers, online, or onsite. > > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| 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:360215 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/groups/cf-talk/unsubscribe.cfm
