Clearing the resolvers after startup saves about 42Mb in the 5000 bean case (~20% of the memory attributable to weld, and ~10% of total memory usage).
Stuart On Wed, Nov 10, 2010 at 8:12 PM, Stuart Douglas <[email protected]>wrote: > > I just ran some very quick and dirty profiling with the latest Jbossas and > the results are as follows: > > > Beans Startup Time Startup (WELDX) Memory Usage Mem Usage(no beans.xml) No > Deployment 17 135 20 20 22 149 500 24 26 178 2000 35 43 265 5000 87 > 104 440 210 > > So jboss uses 135Mb normally, and 210Mb when a war with 5000 classes is > deployed that does not have beans.xml. When you add weld to the mix the > memory usage jumps by 230Mb to 440Mb. > > According to yjp WeldClassImpl (and it's retained WeldMethod/Field etc) is > responsible for 120Mb of this. Other major culprits seem to be > TypeSafeObserverResolver at 24Mb (as it is caching > ProcessAnnotatedType<Bean*> * 5000) and TypeSafeDecoratorResolver at 13Mb. > Not much else stands out. > > The beans used where quite simple (1 injection point, 7 fields, 6 methods), > no normal scoped beans, no interceptors, not decorators. Weldx does have a > notable effect on startup time, which I will also investigate. > > I don't think it will be to hard to significantly reduce this. Reducing the > number of HashMap's in WeldClassImpl (and replacing some with > ImmutableArraySet) should give a significant gain, and clearing the > TypeSafeObserverResolver and TypeSafeDecoratorResolver after startup should > also save around 40Mb. I'll try and do some work this week and see how much > I can get this down. > > Stuart > > On 10/11/2010, at 8:48 AM, Pete Muir wrote: > > I'm about to post a blog about this. > > On 9 Nov 2010, at 21:43, Lincoln Baxter, III wrote: > > Are these points valid? > > > If so, are we aware of them? Just trying to raise awareness to what people > are saying out in the world. I have noticed a relatively high memory > footprint in Seam Forge, using Weld SE. > > > http://www.dzone.com/links/r/cdi_a_major_risk_factor_in_java_ee_6.html > > > Is there anything we can address here and attempt to demystify this blog? > > > -- > > Lincoln Baxter, III > > http://ocpsoft.com > > http://scrumshark.com > > "Keep it Simple" > > _______________________________________________ > > weld-dev mailing list > > [email protected] > > https://lists.jboss.org/mailman/listinfo/weld-dev > > > > _______________________________________________ > weld-dev mailing list > [email protected] > https://lists.jboss.org/mailman/listinfo/weld-dev > > >
_______________________________________________ weld-dev mailing list [email protected] https://lists.jboss.org/mailman/listinfo/weld-dev
