Lock contention profile diff Blocked 1.9ms → 1.6ms (-0.29ms, -15.2%) over 19 contentions → 10 contentions (98.9µs → 159.3µs per contention).
Category
Change
Delta
%
Time
Contentions
Standard library
-15.2%
-0.29ms
100.0%
1.9ms → 1.6ms
19 → 10
Functions with the largest increase in time blocked directly in the function body, excluding callees.
Change
Delta
%
Time
Contentions
Function
Location
new
+0.02ms
0.0% → 1.4%
0ms → 21.6µs
0 → 1
<init>(Collection, int)java.nio.file.FileTreeWalker
+24.7%
+0.01ms
2.6% → 3.8%
47.9µs → 0.1ms
1
<init>(boolean)java.util.concurrent.locks.ReentrantReadWriteLock
+30.0%
+1.38µs
0.2% → 0.4%
4.6µs → 6.0µs
1
preVisitDirectory(Object, BasicFileAttributes)java.nio.file.SimpleFileVisitor
Functions with the largest decrease in time blocked directly in the function body, excluding callees.
Change
Delta
%
Time
Contentions
Function
Location
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
opWrapSink(int, Sink)java.util.stream.DoublePipeline$1
-20.4%
-0.06ms
16.7% → 15.7%
0.3ms
2
loadClassOrNull(String, boolean)jdk.internal.loader.BuiltinClassLoader
-4.7%
-0.06ms
68.9% → 77.4%
1.3ms → 1.2ms
5 → 4
loadClass(String, boolean)java.lang.ClassLoader
removed
-0.03ms
1.3% → 0.0%
25.0µs → 0ms
1 → 0
walkFileTree(Path, Set, int, FileVisitor)java.nio.file.Files
removed
-0.02ms
1.2% → 0.0%
22.7µs → 0ms
1 → 0
iterator(DirectoryStream)sun.nio.fs.UnixDirectoryStream
removed
-0.02ms
1.1% → 0.0%
20.4µs → 0ms
1 → 0
doubleStream(Spliterator$OfDouble, boolean)java.util.stream.StreamSupport
removed
-4.46µs
0.2% → 0.0%
4.5µs → 0ms
1 → 0
<clinit>()java.nio.file.FileTreeWalker$EventType
-12.5%
-3.29µs
1.4%
26.3µs → 23.0µs
1
getDeclaredMethods0(boolean)java.lang.Class
Functions with the largest increase in total time blocked in the function and all its callees.
Change
Delta
%
Time
Contentions
Function
Location
+578.8%
+0.02ms
0.2% → 1.8%
4.1µs → 28.0µs
1
visitFile(Path, BasicFileAttributes)org.renaissance.core.DirUtils$1
+578.8%
+0.02ms
0.2% → 1.8%
4.1µs → 28.0µs
1
visitFile(Object, BasicFileAttributes)org.renaissance.core.DirUtils$1
new
+0.02ms
0.0% → 1.4%
0ms → 21.6µs
0 → 1
<init>(Collection, int)java.nio.file.FileTreeWalker
+24.7%
+0.01ms
2.6% → 3.8%
47.9µs → 0.1ms
1
<init>(boolean)java.util.concurrent.locks.ReentrantReadWriteLock
+24.7%
+0.01ms
2.6% → 3.8%
47.9µs → 0.1ms
1
<init>(UnixPath, long, DirectoryStream$Filter)sun.nio.fs.UnixDirectoryStream
+24.7%
+0.01ms
2.6% → 3.8%
47.9µs → 0.1ms
1
newDirectoryStream(Path, DirectoryStream$Filter)sun.nio.fs.UnixFileSystemProvider
+24.7%
+0.01ms
2.6% → 3.8%
47.9µs → 0.1ms
1
newDirectoryStream(Path)java.nio.file.Files
+6.0%
+0.01ms
5.8% → 7.2%
0.1ms
6 → 4
walkFileTree(Path, Set, int, FileVisitor)java.nio.file.Files
+2.4%
+3.21µs
7.2% → 8.7%
0.1ms
7 → 5
walkFileTree(Path, FileVisitor)java.nio.file.Files
+30.0%
+1.38µs
0.2% → 0.4%
4.6µs → 6.0µs
1
preVisitDirectory(Object, BasicFileAttributes)java.nio.file.SimpleFileVisitor
Change
Delta
%
Time
Contentions
Function
Location
new
+0.02ms
0.0% → 1.4%
0ms → 21.6µs
0 → 1
<init>(Collection, int)java.nio.file.FileTreeWalker
+24.7%
+0.01ms
2.6% → 3.8%
47.9µs → 0.1ms
1
<init>(boolean)java.util.concurrent.locks.ReentrantReadWriteLock
+24.7%
+0.01ms
2.6% → 3.8%
47.9µs → 0.1ms
1
<init>(UnixPath, long, DirectoryStream$Filter)sun.nio.fs.UnixDirectoryStream
+24.7%
+0.01ms
2.6% → 3.8%
47.9µs → 0.1ms
1
newDirectoryStream(Path, DirectoryStream$Filter)sun.nio.fs.UnixFileSystemProvider
+24.7%
+0.01ms
2.6% → 3.8%
47.9µs → 0.1ms
1
newDirectoryStream(Path)java.nio.file.Files
+6.0%
+0.01ms
5.8% → 7.2%
0.1ms
6 → 4
walkFileTree(Path, Set, int, FileVisitor)java.nio.file.Files
+2.4%
+3.21µs
7.2% → 8.7%
0.1ms
7 → 5
walkFileTree(Path, FileVisitor)java.nio.file.Files
+30.0%
+1.38µs
0.2% → 0.4%
4.6µs → 6.0µs
1
preVisitDirectory(Object, BasicFileAttributes)java.nio.file.SimpleFileVisitor
Functions with the largest decrease in total time blocked in the function and all its callees.
Change
Delta
%
Time
Contentions
Function
Location
-33.4%
-0.27ms
42.7% → 33.5%
0.8ms → 0.5ms
5 → 2
tryRemoveAndExec(ForkJoinTask, boolean)java.util.concurrent.ForkJoinPool$WorkQueue
-33.4%
-0.27ms
42.7% → 33.5%
0.8ms → 0.5ms
5 → 2
awaitDone(int, long)java.util.concurrent.ForkJoinTask
-33.4%
-0.27ms
42.7% → 33.5%
0.8ms → 0.5ms
5 → 2
join()java.util.concurrent.ForkJoinTask
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
computeClusterAverages()org.renaissance.jdk.concurrent.JavaKMeans$UpdateTask
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
computeDirectly()org.renaissance.jdk.concurrent.JavaKMeans$UpdateTask
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
compute()org.renaissance.jdk.concurrent.JavaKMeans$RangedTask
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
exec()java.util.concurrent.RecursiveTask
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
doExec()java.util.concurrent.ForkJoinTask
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
topLevelExec(ForkJoinTask, ForkJoinPool$WorkQueue)java.util.concurrent.ForkJoinPool$WorkQueue
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
scan(ForkJoinPool$WorkQueue, int, int)java.util.concurrent.ForkJoinPool
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
runWorker(ForkJoinPool$WorkQueue)java.util.concurrent.ForkJoinPool
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
run()java.util.concurrent.ForkJoinWorkerThread
removed
-0.16ms
8.5% → 0.0%
0.2ms → 0ms
7 → 0
boxed(double[])org.renaissance.jdk.concurrent.JavaKMeans$UpdateTask
-7.8%
-0.13ms
85.6% → 93.1%
1.6ms → 1.5ms
7 → 6
loadClass(String)java.lang.ClassLoader
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
opWrapSink(int, Sink)java.util.stream.DoublePipeline$1
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
wrapSink(Sink)java.util.stream.AbstractPipeline
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
wrapAndCopyInto(Sink, Spliterator)java.util.stream.AbstractPipeline
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
evaluate(Spliterator, boolean, IntFunction)java.util.stream.AbstractPipeline
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
evaluateToArrayNode(IntFunction)java.util.stream.AbstractPipeline
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
toArray(IntFunction)java.util.stream.ReferencePipeline
Change
Delta
%
Time
Contentions
Function
Location
-33.4%
-0.27ms
42.7% → 33.5%
0.8ms → 0.5ms
5 → 2
tryRemoveAndExec(ForkJoinTask, boolean)java.util.concurrent.ForkJoinPool$WorkQueue
-33.4%
-0.27ms
42.7% → 33.5%
0.8ms → 0.5ms
5 → 2
awaitDone(int, long)java.util.concurrent.ForkJoinTask
-33.4%
-0.27ms
42.7% → 33.5%
0.8ms → 0.5ms
5 → 2
join()java.util.concurrent.ForkJoinTask
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
exec()java.util.concurrent.RecursiveTask
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
doExec()java.util.concurrent.ForkJoinTask
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
topLevelExec(ForkJoinTask, ForkJoinPool$WorkQueue)java.util.concurrent.ForkJoinPool$WorkQueue
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
scan(ForkJoinPool$WorkQueue, int, int)java.util.concurrent.ForkJoinPool
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
runWorker(ForkJoinPool$WorkQueue)java.util.concurrent.ForkJoinPool
-14.0%
-0.20ms
76.3% → 77.4%
1.4ms → 1.2ms
11 → 4
run()java.util.concurrent.ForkJoinWorkerThread
-7.8%
-0.13ms
85.6% → 93.1%
1.6ms → 1.5ms
7 → 6
loadClass(String)java.lang.ClassLoader
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
opWrapSink(int, Sink)java.util.stream.DoublePipeline$1
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
wrapSink(Sink)java.util.stream.AbstractPipeline
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
wrapAndCopyInto(Sink, Spliterator)java.util.stream.AbstractPipeline
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
evaluate(Spliterator, boolean, IntFunction)java.util.stream.AbstractPipeline
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
evaluateToArrayNode(IntFunction)java.util.stream.AbstractPipeline
removed
-0.12ms
6.4% → 0.0%
0.1ms → 0ms
5 → 0
toArray(IntFunction)java.util.stream.ReferencePipeline
-19.0%
-0.08ms
23.7% → 22.6%
0.4ms
8 → 6
runWith(Object, Runnable)java.lang.Thread
-19.0%
-0.08ms
23.7% → 22.6%
0.4ms
8 → 6
run()java.lang.Thread
-20.4%
-0.06ms
16.7% → 15.7%
0.3ms
2
loadClassOrNull(String, boolean)jdk.internal.loader.BuiltinClassLoader
-20.4%
-0.06ms
16.7% → 15.7%
0.3ms
2
loadClass(String, boolean)jdk.internal.loader.BuiltinClassLoader