* stable-5.4:
Fix API problem filters
Fix unclosed resource warning in SmartOutputStream
JschConfigSessionFactory: fix boxing warning
SshSupport#runSshCommand: don't throw exception in finally block
Don't override already managed maven-compiler-plugin version
Remove unused import from CreateFileSnapshotBenchmark
Remove duplicate ignore_optional_problems entry in .classpath
Update maven-site-plugin used by benchmark module to 3.8.2
Add dependency to enable site generation for benchmark module
Ignore warnings for generated source code in
org.eclipse.jgit.benchmark
Fix MBean registration
Enhance WindowCache statistics
Change-Id: I78902d5feecb2c09134b64ec2f3b48b2c3bab37d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.3:
Fix API problem filters
Fix unclosed resource warning in SmartOutputStream
JschConfigSessionFactory: fix boxing warning
SshSupport#runSshCommand: don't throw exception in finally block
Don't override already managed maven-compiler-plugin version
Remove unused import from CreateFileSnapshotBenchmark
Remove duplicate ignore_optional_problems entry in .classpath
Update maven-site-plugin used by benchmark module to 3.8.2
Add dependency to enable site generation for benchmark module
Ignore warnings for generated source code in
org.eclipse.jgit.benchmark
Fix MBean registration
Enhance WindowCache statistics
Change-Id: I1b560b36d169cfa02cc5450ad0fa0bd85f9f42d8
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.2:
Fix API problem filters
Fix unclosed resource warning in SmartOutputStream
JschConfigSessionFactory: fix boxing warning
SshSupport#runSshCommand: don't throw exception in finally block
Don't override already managed maven-compiler-plugin version
Remove unused import from CreateFileSnapshotBenchmark
Remove duplicate ignore_optional_problems entry in .classpath
Update maven-site-plugin used by benchmark module to 3.8.2
Add dependency to enable site generation for benchmark module
Ignore warnings for generated source code in
org.eclipse.jgit.benchmark
Fix MBean registration
Enhance WindowCache statistics
Change-Id: I67a07d92718188bdf7f8a13b83e9f538ecf4b22f
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The benchmark module currently has no parent, adjust the version used
here to the one used by all the other jgit Maven modules.
Change-Id: I8807a694fe23f8f131d1d22a58a3e18874d756cc
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The source code in the folder .apt_generated is generated by the JMH
code generator, so there's no point in raising any warnings as this
could only be fixed in the upstream code generator.
Change-Id: I882888e7bf924f9ae74182598fcb91671a5c9818
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Add the following statistics
- cache hit count and hit ratio
- cache miss count and miss ratio
- count of successful and failed loads
- rate of failed loads
- load, eviction and request count
- average and total load time
Use LongAdder instead of AtomicLong to implement counters in order to
improve scalability.
Optionally expose these metrics via JMX, they are registered with the
platform MBean server if the config option jmx.WindowCacheStats = true
in the user or system level git config.
Bug: 553573
Change-Id: Ia2d5246ef69b9c2bd594a23934424bc5800774aa
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.4:
Bazel: Use java_plugin and java_binary from @rules_java in jmh.bzl
Bazel: Add missing newlines at end of BUILD files
Change-Id: I3dd2554cbad5bb224c2799b6b133fe91ab10abc3
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* stable-5.3:
Bazel: Use java_plugin and java_binary from @rules_java in jmh.bzl
Bazel: Add missing newlines at end of BUILD files
Change-Id: I21878c42fd9abf7d858b534300df0fffe4bad431
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* stable-5.2:
Bazel: Use java_plugin and java_binary from @rules_java in jmh.bzl
Bazel: Add missing newlines at end of BUILD files
Change-Id: Ie5e66f2e26c057c81101b0d110f91ea479eb362d
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* stable-5.1:
Bazel: Use java_plugin and java_binary from @rules_java in jmh.bzl
Bazel: Add missing newlines at end of BUILD files
Change-Id: Ic1dc84a6c4a1cf430d329627642583fd6e0d0eaa
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
SystemReader.updateAll() must _not_ test whether the file exists. In
tests at least there are FileBasedConfigs with a null file. Test
configs should (and do) override isOutdated() to deal with this case.
Change-Id: I56303fe0d56afeb9f2203ee807a92c5dcf3809e9
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
This ensures the measured filesystem timestamp resolution will be only
used on the machine where it was measured and avoid errors in case the
~/.jgitconfig file is copied to another machine.
Bug: 551850
Change-Id: Iff2a11be62ca94c3bbe4a955182988dc50852f9f
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
This avoids polluting hand-crafted user level config with
auto-configured options which might disturb in environments where
the user level config is replicated between different machines.
Add a jgit config as parent of the system level config. Persist
measured timestamp resolutions always in this jgit config and read it
via the user global config. This has the effect that auto-configured
timestamp resolution will be used by default and can be overridden in
either the system level or user level config.
Store the jgit config under the XDG_CONFIG_HOME directory following the
XDG base directory specification [1] in order to ensure that we have
write permissions to persist the file. This has the effect that each OS
user will use its jgit config since they typically use different
XDG_CONFIG_HOME directories.
If the environment variable XDG_CONFIG_HOME is defined the jgit config
file is located at $XDG_CONFIG_HOME/jgit/config otherwise the default is
~/.config/jgit/config.
If you want to avoid redundant measurement for different OS users
manually copy the values measured and auto-configured for one OS user to
the system level git config.
[1] https://wiki.archlinux.org/index.php/XDG_Base_Directory
Bug: 551850
Change-Id: I0022bd40ae62f82e5b964c2ea25822eb55d94687
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Change-Id: Ia77f442e47c5670c2d6d279ba862044016aabd86
Signed-off-by: Thomas Wolf <thomas.wolf@paranor.ch>
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.4:
Run JMH benchmarks using bazel
Benchmark for creating files and FileSnapshots
Implement benchmark for looking up FileStore of a given Path
JMH benchmark for SimpleLruCache
Update API problem filters
Remove unused API problem filters
Silence API errors for new API added since 5.1.0
Change-Id: I071536d630a95e89f5bbbf965a1571b9f5eb81ee
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.3:
Run JMH benchmarks using bazel
Benchmark for creating files and FileSnapshots
Implement benchmark for looking up FileStore of a given Path
JMH benchmark for SimpleLruCache
Update API problem filters
Remove unused API problem filters
Silence API errors for new API added since 5.1.0
Change-Id: Ib735c4039e24ec8b045ae2cc81df1e9e5c9fa996
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.2:
Run JMH benchmarks using bazel
Benchmark for creating files and FileSnapshots
Implement benchmark for looking up FileStore of a given Path
JMH benchmark for SimpleLruCache
Update API problem filters
Remove unused API problem filters
Silence API errors for new API added since 5.1.0
Change-Id: I00615958ab6fbdff601e87a9792aba5606cda12a
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.1:
Run JMH benchmarks using bazel
Benchmark for creating files and FileSnapshots
Implement benchmark for looking up FileStore of a given Path
JMH benchmark for SimpleLruCache
Remove unused API problem filters
Silence API errors for new API added since 5.1.0
Change-Id: If91c55a192d3b2c441d9c8d414f2e24a7261b1b6
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
The benchmarks can be built and run using bazel by running:
$ bazel run //org.eclipse.jgit.benchmarks:benchmarks
Change-Id: I6679750eaa0f2be30ed9d45036e013b0ea4fcc86
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Results on Mac OS 10.14.6 using APFS:
Result "org.eclipse.jgit.benchmarks.LookupFileStoreBenchmark.testLookupFileStore":
44583.277 ±(99.9%) 2666.096 ns/op [Average]
(min, avg, max) = (43707.073, 44583.277, 45320.685), stdev = 692.377
CI (99.9%): [41917.181, 47249.373] (assumes normal distribution)
Secondary result
"org.eclipse.jgit.benchmarks.LookupFileStoreBenchmark.testLookupFileStore:·stack":
Stack profiler:
....[Thread state
distributions]........................................................
100.0% RUNNABLE
....[Thread state:
RUNNABLE].............................................................
42.5% 42.5% sun.nio.fs.UnixNativeDispatcher.realpath0
37.9% 37.9% sun.nio.fs.UnixNativeDispatcher.stat0
11.0% 11.0% sun.nio.fs.BsdNativeDispatcher.getfsstat
7.6% 7.6% sun.nio.fs.BsdNativeDispatcher.fsstatEntry
0.7% 0.7% sun.nio.fs.BsdNativeDispatcher.endfsstat
0.1% 0.1% sun.nio.fs.UnixPath.initOffsets
0.0% 0.0% sun.nio.fs.UnixFileAttributes.get
0.0% 0.0% java.util.zip.Inflater.inflateBytes
0.0% 0.0% sun.misc.Unsafe.compareAndSwapInt
0.0% 0.0% sun.nio.fs.BsdFileStore.findMountEntry
This shows that FS.attrCacheByPath should be useful to reduce overhead
of looking up the FileStore of a given file.
Change-Id: I7213086b42e0453f0ee149660d507dac2a4644cc
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
See [1] for JMH documentation and [2] how to use JMH in Eclipse.
The benchmarks pom currently cannot use the JGit parent pom due to an
ecj bug [3] regarding annotation processing. Hence for now do not
inherit from the JGit parent pom and copy the compiler plugin
configuration for javac from the parent pom.
After running the Maven build the benchmark can be run using Maven:
$ java -jar org.eclipse.jgit.benchmarks/target/benchmarks.jar
or in Eclipse by running the main method of the SimpleLruCacheBenchmark
class.
[1] https://openjdk.java.net/projects/code-tools/jmh/
[2] http://alblue.bandlem.com/Page/3/index.html
[3] https://eclip.se/532029
CQ: 20517
CQ: 20518
Change-Id: Idca8a9e0980f0b8a9c741c4c9e97d03c62f07c8d
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
- filter errors for new APIs added in service release
- remove unused filters
Change-Id: Ifbf532b8a3c46d4ed78a38f6c75073a072b7f669
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.4:
Bazel: Bump bazel version to 1.0.0
Change-Id: I967ad9e0fa6f13c5217aafb8faedc4a7dfb37c58
Signed-off-by: David Pursehouse <david.pursehouse@gmail.com>
* stable-5.3:
Bazel: Bump bazel version to 1.0.0
Change-Id: If07e2ff3281dc96bec206b68631d22be8fd4636a
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
* stable-5.2:
Bazel: Bump bazel version to 1.0.0
Change-Id: Ife26567c08ec053741c9db4ca8b5b2836044dcde
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>
Matthias Sohn
David Pursehouse
Thomas Wolf
Masaya Suzuki