mikemccand commented on PR #15997:
URL: https://github.com/apache/lucene/pull/15997#issuecomment-4354548984
This change worked -- I'm able to simply run profiling:
```
./gradlew -p lucene/core test -Ptests.profile=true
-Ptests.profile.stacksize=8 -Ptests.profile.linenumbers=true
```
but I still get not-really-loving top CPU stacks:
```
PROFILE SUMMARY from 155438 events (total: 155438)
tests.profile.mode=cpu
tests.profile.count=10
tests.profile.stacksize=8
tests.profile.linenumbers=true
PERCENT CPU SAMPLES STACK
0.53% 831
java.util.stream.MatchOps$2MatchSink#accept():119 [JIT compiled code]
at
java.util.stream.Streams$RangeIntSpliterator#tryAdvance():82 [JIT compiled code]
at
java.util.stream.IntPipeline#forEachWithCancel():163 [JIT compiled code]
at
java.util.stream.AbstractPipeline#copyIntoWithCancel():588 [JIT compiled code]
at
java.util.stream.AbstractPipeline#copyInto():574 [JIT compiled code]
at
java.util.stream.AbstractPipeline#wrapAndCopyInto():560 [JIT compiled code]
at
java.util.stream.MatchOps$MatchOp#evaluateSequential():230 [Inlined code]
at
java.util.stream.MatchOps$MatchOp#evaluateSequential():196 [JIT compiled code]
0.31% 489
java.util.stream.Streams$RangeIntSpliterator#tryAdvance():77 [JIT compiled code]
at
java.util.stream.IntPipeline#forEachWithCancel():163 [JIT compiled code]
at
java.util.stream.AbstractPipeline#copyIntoWithCancel():588 [JIT compiled code]
at
java.util.stream.AbstractPipeline#copyInto():574 [JIT compiled code]
at
java.util.stream.AbstractPipeline#wrapAndCopyInto():560 [JIT compiled code]
at
java.util.stream.MatchOps$MatchOp#evaluateSequential():230 [Inlined code]
at
java.util.stream.MatchOps$MatchOp#evaluateSequential():196 [JIT compiled code]
at
java.util.stream.AbstractPipeline#evaluate():265 [JIT compiled code]
0.31% 485 sun.nio.ch.UnixFileDispatcherImpl#pread0()
[Native code]
at
sun.nio.ch.UnixFileDispatcherImpl#pread():57 [JIT compiled code]
at
sun.nio.ch.IOUtil#readIntoNativeBuffer():339 [JIT compiled code]
at sun.nio.ch.IOUtil#read():307 [JIT compiled
code]
at sun.nio.ch.IOUtil#read():284 [Inlined code]
at
sun.nio.ch.FileChannelImpl#readInternal():1198 [JIT compiled code]
at sun.nio.ch.FileChannelImpl#implRead():1170
[JIT compiled code]
at sun.nio.ch.FileChannelImpl#read():1152 [JIT
compiled code]
0.28% 433
java.util.stream.IntPipeline#forEachWithCancel():163 [JIT compiled code]
at
java.util.stream.AbstractPipeline#copyIntoWithCancel():588 [JIT compiled code]
at
java.util.stream.AbstractPipeline#copyInto():574 [JIT compiled code]
at
java.util.stream.AbstractPipeline#wrapAndCopyInto():560 [JIT compiled code]
at
java.util.stream.MatchOps$MatchOp#evaluateSequential():230 [Inlined code]
at
java.util.stream.MatchOps$MatchOp#evaluateSequential():196 [JIT compiled code]
at
java.util.stream.AbstractPipeline#evaluate():265 [JIT compiled code]
at
java.util.stream.IntPipeline#noneMatch():549 [Inlined code]
```
What is so heavily using `java.util.stream.*` in our core unit tests ....
lemme make stack size bigger.
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