On Jun 11, 2013, at 9:03 AM, Aleksey Shipilev <aleksey.shipi...@oracle.com> wrote:
> On 06/11/2013 07:43 PM, Christian Thalinger wrote: >> Thanks for this but I was thinking running it with -Xprof to see >> whether some of the table methods show up on the profile. > > I put little trust into this kind of profiling, but here's the sample > output from JMH -prof stack, while running with 4 threads: > > Before: >> Iteration 5 (20s in 4 threads): 380.982 msec/op >> Stack | 24.8% RUNNABLE >> jdk.nashorn.internal.runtime.regexp.joni.ByteCodeMachine.matchAt >> | 6.5% RUNNABLE >> jdk.nashorn.internal.runtime.regexp.joni.SearchAlgorithm$3.search >> | 5.2% RUNNABLE java.lang.Class.getClassLoader0 >> | 3.3% RUNNABLE java.lang.ThreadLocal.get >> | 3.0% RUNNABLE >> jdk.nashorn.internal.runtime.regexp.JoniRegExp$JoniMatcher.<init> >> | 2.9% RUNNABLE >> jdk.nashorn.internal.objects.NativeRegExp.replace >> | 2.4% RUNNABLE >> jdk.nashorn.internal.runtime.regexp.joni.Matcher.forwardSearchRange >> | 2.3% RUNNABLE >> jdk.nashorn.internal.objects.NativeRegExp.exec >> | 2.1% RUNNABLE >> jdk.nashorn.internal.objects.NativeRegExp.groups >> | 1.9% RUNNABLE >> jdk.nashorn.internal.objects.NativeString.replace >> | 45.6% (other) >> | > > > After: >> Iteration 5 (20s in 4 threads): 358.121 msec/op >> Stack | 24.7% RUNNABLE >> jdk.nashorn.internal.runtime.regexp.joni.ByteCodeMachine.matchAt >> | 5.7% RUNNABLE java.lang.Class.getClassLoader0 >> | 5.3% RUNNABLE >> jdk.nashorn.internal.runtime.regexp.joni.SearchAlgorithm$3.search >> | 3.5% RUNNABLE java.lang.ThreadLocal.get >> | 3.4% RUNNABLE >> jdk.nashorn.internal.runtime.regexp.JoniRegExp$JoniMatcher.<init> >> | 2.7% RUNNABLE >> jdk.nashorn.internal.objects.NativeRegExp.replace >> | 2.3% RUNNABLE >> jdk.nashorn.internal.runtime.regexp.joni.Matcher.forwardSearchRange >> | 1.8% RUNNABLE >> jdk.nashorn.internal.objects.NativeRegExp.exec >> | 1.7% RUNNABLE >> jdk.nashorn.internal.objects.NativeString.replace >> | 1.5% RUNNABLE >> jdk.nashorn.internal.runtime.regexp.joni.StackMachine.pop >> | 47.3% (other) >> | > > -Xprof shows the similar data. Odd. It showed up for me last time. Maybe it's related to using Joni now. Anyway, let's push this. -- Chris > > -Aleksey.
