Whoops, my mistake, this *was* on JDK 7. On 19 Apr 2013, at 04:11, Radim Vansa <rva...@redhat.com> wrote:
> Do you have the numbers for JDK 7 as well? > > Radim > > ----- Original Message ----- > | From: "Manik Surtani" <msurt...@redhat.com> > | To: "infinispan -Dev List" <infinispan-dev@lists.jboss.org> > | Sent: Friday, April 19, 2013 4:35:53 AM > | Subject: [infinispan-dev] CHM or CHMv8? > | > | Guys, > | > | Based on some recent micro benchmarks I've been doing, I've seen: > | > | MapStressTest configuration: capacity 100000, test running time 60 seconds > | Testing mixed read/write performance with capacity 100,000, keys 300,000, > | concurrency level 32, threads 12, read:write ratio 0:1 > | Container CHM Ops/s 21,165,771.67 Gets/s 0.00 Puts/s > | 21,165,771.67 HitRatio 100.00 Size 262,682 stdDev 77,540.73 > | Container CHMV8 Ops/s 33,513,807.09 Gets/s 0.00 Puts/s > | 33,513,807.09 HitRatio 100.00 Size 262,682 stdDev 77,540.73 > | > | So under high concurrency (12 threads, on my workstation with 12 hardware > | threads - so all threads are always working), we see that Infinispan's CHMv8 > | implementation is 50% faster than JDK6's CHM implementation when doing puts. > | > | We use a fair number of CHMs all over Infinispan's codebase. By default, > | these are all JDK-provided CHMs. But we have the option to switch to our > | CHMv8 implementation by passing in -Dinfinispan.unsafe.allow_jdk8_chm=true. > | > | The question is, should this be the default? Thoughts, opinions? > | > | - M > | > | -- > | Manik Surtani > | ma...@jboss.org > | twitter.com/maniksurtani > | > | Platform Architect, JBoss Data Grid > | http://red.ht/data-grid > | > | > | _______________________________________________ > | infinispan-dev mailing list > | infinispan-dev@lists.jboss.org > | https://lists.jboss.org/mailman/listinfo/infinispan-dev > | > _______________________________________________ > infinispan-dev mailing list > infinispan-dev@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/infinispan-dev -- Manik Surtani ma...@jboss.org twitter.com/maniksurtani Platform Architect, JBoss Data Grid http://red.ht/data-grid _______________________________________________ infinispan-dev mailing list infinispan-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/infinispan-dev
