I use -XX:+UseConcMarkSweepGC. And don't forget -Xmx, just having a bigger heap can solve some problems. Some people have found it necessary to increase the PermGen size, but usually only for programs that generate a lot of functions dynamically.
-SS On Jan 7, 4:20 am, Gabi <bugspy...@gmail.com> wrote: > Hello fellow Clojurians, > > I got lots of "java.lang.OutOfMemoryError: GC overhead limit exceeded > " exceptions ,and after a short investigation added the following > flags (JVM 1.6.0_17): > -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX: > +CMSIncrementalPacing > > These flags seems to solve the problem, but I am interested in your > experience and best practices regarding JVM flags in clojure. > > I know it really depends on the type of the application, but it seems > to me that the gc is working really hard under Clojure (I cannot prove > it, this is just an impression) > > Gabi
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