Attachment 284081 Details for Bug 566685 – Primitive summary of stack frame durations.

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Primitive summary of stack frame durations.

jdt-resources-jmh-output-prof.txt (text/plain), 5.40 KB, created by Jeremy Whiting

on 2020-09-08 08:55:18 EDT

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Creator: Jeremy Whiting

Created: 2020-09-08 08:55:18 EDT

Size: 5.40 KB

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obsolete

># JMH version: 1.25.2
># VM version: JDK 11.0.8, OpenJDK 64-Bit Server VM, 11.0.8+10
># VM invoker: /usr/lib/jvm/java-11-openjdk-11.0.8.10-2.fc31.x86_64/bin/java
># VM options: <none>
># Warmup: 5 iterations, 10 s each
># Measurement: 5 iterations, 10 s each
># Timeout: 10 min per iteration
># Threads: 1 thread, will synchronize iterations
># Benchmark mode: Throughput, ops/time
># Benchmark: org.jboss.perf.jdt.resources.MyBenchmark.original
>
># Run progress: 0.00% complete, ETA 00:03:20
># Fork: 1 of 1
># Warmup Iteration   1: 18.253 ops/ms
># Warmup Iteration   2: 18.540 ops/ms
># Warmup Iteration   3: 18.262 ops/ms
># Warmup Iteration   4: 18.252 ops/ms
># Warmup Iteration   5: 18.278 ops/ms
>Iteration   1: 18.302 ops/ms
>                 Â·stack: <delayed till summary>
>
>Iteration   2: 18.446 ops/ms
>                 Â·stack: <delayed till summary>
>
>Iteration   3: 18.429 ops/ms
>                 Â·stack: <delayed till summary>
>
>Iteration   4: 18.280 ops/ms
>                 Â·stack: <delayed till summary>
>
>Iteration   5: 18.237 ops/ms
>                 Â·stack: <delayed till summary>
>
>
>
>Result "org.jboss.perf.jdt.resources.MyBenchmark.original":
>  18.339 Â±(99.9%) 0.359 ops/ms [Average]
>  (min, avg, max) = (18.237, 18.339, 18.446), stdev = 0.093
>  CI (99.9%): [17.980, 18.698] (assumes normal distribution)
>
>Secondary result "org.jboss.perf.jdt.resources.MyBenchmark.original:Â·stack":
>Stack profiler:
>
>....[Thread state distributions]....................................................................
> 50.0%         RUNNABLE
> 50.0%         TIMED_WAITING
>
>....[Thread state: RUNNABLE]........................................................................
> 15.5%  30.9% java.io.FilterOutputStream.write
> 12.4%  24.7% java.io.FileOutputStream.open0
>  6.4%  12.9% java.io.UnixFileSystem.delete0
>  5.3%  10.6% java.util.Random.nextBytes
>  4.6%   9.1% java.io.FileOutputStream.writeBytes
>  1.2%   2.5% java.io.FileDescriptor.close0
>  1.0%   2.0% org.eclipse.core.internal.localstore.SafeChunkyOutputStream.<init>
>  0.5%   1.0% java.util.regex.Pattern$BmpCharPropertyGreedy.match
>  0.4%   0.9% java.lang.AbstractStringBuilder.append
>  0.4%   0.9% java.util.regex.Pattern$BmpCharProperty.match
>  2.3%   4.5% <other>
>
>....[Thread state: TIMED_WAITING]...................................................................
> 50.0% 100.0% java.lang.Object.wait
>
>
>
># JMH version: 1.25.2
># VM version: JDK 11.0.8, OpenJDK 64-Bit Server VM, 11.0.8+10
># VM invoker: /usr/lib/jvm/java-11-openjdk-11.0.8.10-2.fc31.x86_64/bin/java
># VM options: <none>
># Warmup: 5 iterations, 10 s each
># Measurement: 5 iterations, 10 s each
># Timeout: 10 min per iteration
># Threads: 1 thread, will synchronize iterations
># Benchmark mode: Throughput, ops/time
># Benchmark: org.jboss.perf.jdt.resources.MyBenchmark.proposed
>
># Run progress: 50.00% complete, ETA 00:01:40
># Fork: 1 of 1
># Warmup Iteration   1: 24.528 ops/ms
># Warmup Iteration   2: 26.267 ops/ms
># Warmup Iteration   3: 27.361 ops/ms
># Warmup Iteration   4: 27.296 ops/ms
># Warmup Iteration   5: 26.684 ops/ms
>Iteration   1: 26.746 ops/ms
>                 Â·stack: <delayed till summary>
>
>Iteration   2: 26.781 ops/ms
>                 Â·stack: <delayed till summary>
>
>Iteration   3: 26.848 ops/ms
>                 Â·stack: <delayed till summary>
>
>Iteration   4: 26.777 ops/ms
>                 Â·stack: <delayed till summary>
>
>Iteration   5: 26.864 ops/ms
>                 Â·stack: <delayed till summary>
>
>
>
>Result "org.jboss.perf.jdt.resources.MyBenchmark.proposed":
>  26.803 Â±(99.9%) 0.193 ops/ms [Average]
>  (min, avg, max) = (26.746, 26.803, 26.864), stdev = 0.050
>  CI (99.9%): [26.610, 26.996] (assumes normal distribution)
>
>Secondary result "org.jboss.perf.jdt.resources.MyBenchmark.proposed:Â·stack":
>Stack profiler:
>
>....[Thread state distributions]....................................................................
> 50.0%         TIMED_WAITING
> 50.0%         RUNNABLE
>
>....[Thread state: TIMED_WAITING]...................................................................
> 50.0% 100.0% java.lang.Object.wait
>
>....[Thread state: RUNNABLE]........................................................................
> 19.1%  38.2% java.io.FileOutputStream.open0
>  8.6%  17.2% java.io.UnixFileSystem.delete0
>  7.4%  14.8% java.util.Random.nextBytes
>  6.4%  12.8% java.io.FileOutputStream.writeBytes
>  2.0%   4.1% java.io.FileDescriptor.close0
>  1.5%   3.0% org.eclipse.core.internal.localstore.SafeChunkyOutputStreamProposed.<init>
>  0.7%   1.3% java.util.regex.Pattern$BmpCharProperty.match
>  0.6%   1.1% java.lang.AbstractStringBuilder.append
>  0.6%   1.1% java.util.regex.Pattern$BmpCharPropertyGreedy.match
>  0.4%   0.8% java.text.DecimalFormatSymbols.getInstance
>  2.8%   5.6% <other>
>
>
>
># Run complete. Total time: 00:03:20
>
>REMEMBER: The numbers below are just data. To gain reusable insights, you need to follow up on
>why the numbers are the way they are. Use profilers (see -prof, -lprof), design factorial
>experiments, perform baseline and negative tests that provide experimental control, make sure
>the benchmarking environment is safe on JVM/OS/HW level, ask for reviews from the domain experts.
>Do not assume the numbers tell you what you want them to tell.
>
>Benchmark                     Mode  Cnt   Score   Error   Units
>MyBenchmark.original         thrpt    5  18.339 Â± 0.359  ops/ms
>MyBenchmark.original:Â·stack  thrpt          NaN             ---
>MyBenchmark.proposed         thrpt    5  26.803 Â± 0.193  ops/ms
>MyBenchmark.proposed:Â·stack  thrpt          NaN             ---

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Attachments on bug 566685: 284081