Martin, There will always be "problems" around sizing in these small containers. I think we are all aware of it now, what is more important is that eviction works properly in all other scenarios! I am ok with this!
Regards, Vladimir On 12-02-03 11:59 AM, Martin Gencur wrote: > I see, for the bigger numbers entries are evicted (more than just to > decrease the number to maxEntries) before I actually check the number so > this is expected. For the 2,4,6,8,10 eviction did not run so the cache > contains more than maxEntries. Are we OK with that? > > Thanks > > > M. > > > On Fri, 2012-02-03 at 15:29 +0100, Martin Gencur wrote: >> Hi all, >> I ran a few tests to find out what is the actual number of entries held >> in a cache when certain "maxEntries" param is set for eviction and I >> store more than maxEntries entries. I tested with HotSpot JDK6 [1], IBM >> JDK 6,7 [2]. OpenJDK6 seems to have the same results as HotSpot JDK. >> >> Results: >> >> maxEntries being set -> actual number of entries held in the cache >> >> HotSpot JDK: >> ------------ >> >> 2 -> 2 >> 4 -> 4 >> 6 -> 4 >> 8 -> 8 >> 10 -> 8 >> 256 -> 232 >> 300 -> 266 >> >> IBM JDK (both 6, 7): >> -------------------- >> >> 2 -> 4 (2 with LIRS) >> 4 -> 6 (4 with LIRS) >> 6 -> 10 >> 8 -> 11 (8 with LIRS) >> 10 -> 13, (8 with LIRS) >> 300 -> 287, (266 with LIRS) >> 256 -> 247, (232 with LIRS) >> >> I modified one test in ispn-core to do this testing: >> https://github.com/mgencur/infinispan/commit/837a1c752fa7fbfb3f05738dd873e78cbf71d071 >> >> >> >> Any thoughts ? :) >> >> >> >> [1] >> >> java version "1.6.0_21" >> Java(TM) SE Runtime Environment (build 1.6.0_21-b06) >> Java HotSpot(TM) 64-Bit Server VM (build 17.0-b16, mixed mode) >> >> [2] >> >> java version "1.6.0" >> Java(TM) SE Runtime Environment (build pxi3260sr9fp1-20110208_03(SR9 >> FP1)) >> IBM J9 VM (build 2.4, JRE 1.6.0 IBM J9 2.4 Linux x86-32 >> jvmxi3260sr9-20110203_74623 (JIT enabled, AOT enabled) >> >> java version "1.7.0" >> Java(TM) SE Runtime Environment (build pxi3270-20110827_01) >> IBM J9 VM (build 2.6, JRE 1.7.0 Linux x86-32 20110810_88604 (JIT >> enabled, AOT enabled) >> >> >> _______________________________________________ infinispan-dev mailing list [email protected] https://lists.jboss.org/mailman/listinfo/infinispan-dev
