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https://issues.apache.org/jira/browse/IGNITE-9272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16641617#comment-16641617
]
Ignite TC Bot commented on IGNITE-9272:
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{panel:title=Possible
Blockers|borderStyle=dashed|borderColor=#ccc|titleBGColor=#F7D6C1}
{color:#d04437}MVCC Cache{color} [[tests
7|https://ci.ignite.apache.org/viewLog.html?buildId=2028675]]
* IgniteCacheMvccTestSuite: CacheMvccTransactionsTest.testRebalanceSimple -
0,0% fails in last 100 master runs.
* IgniteCacheMvccTestSuite: DataStreamProcessorMvccSelfTest.testColocated -
0,0% fails in last 100 master runs.
* IgniteCacheMvccTestSuite: DataStreamProcessorMvccSelfTest.testPartitioned -
0,0% fails in last 100 master runs.
* IgniteCacheMvccTestSuite: DataStreamProcessorMvccSelfTest.testReplicated -
0,0% fails in last 100 master runs.
{color:#d04437}Platform .NET (Core Linux){color} [[tests
8|https://ci.ignite.apache.org/viewLog.html?buildId=2028626]]
* dll: IgniteConfigurationTest.TestDefaultSpi - 0,0% fails in last 100 master
runs.
{color:#d04437}Cache 3{color} [[tests
2|https://ci.ignite.apache.org/viewLog.html?buildId=2028657]]
* IgniteBinaryObjectsCacheTestSuite3:
IgniteCacheGroupsTest.testRestartsAndCacheCreateDestroy - 0,0% fails in last
100 master runs.
{panel}
[TeamCity Run
All|http://ci.ignite.apache.org/viewLog.html?buildId=2028678&buildTypeId=IgniteTests24Java8_RunAll]
> PureJavaCrc32 vs j.u.zip.CRC32 benchmark and probably replace.
> --------------------------------------------------------------
>
> Key: IGNITE-9272
> URL: https://issues.apache.org/jira/browse/IGNITE-9272
> Project: Ignite
> Issue Type: Improvement
> Components: general
> Affects Versions: 2.6
> Reporter: Stanilovsky Evgeny
> Assignee: Stanilovsky Evgeny
> Priority: Major
> Fix For: 2.8
>
> Attachments: BenchmarkCRC.java
>
>
> I see that Ignite has its own crc32 realization called: PureJavaCrc32 and
> from desc it seems to be : _The current version is ~10x to 1.8x as fast as
> Sun's native java.util.zip.CRC32 in Java 1.6_ But my jmh tests show opposite
> results.
> + If it really so, looks like backward compatibility would be easy, all that
> need is just to take lower part of long form zip.crc32 realization.
> {noformat}
> jmh results:
> Benchmark Mode Cnt Score Error Units
> BenchmarkCRC.Crc32 avgt 5 1521060.716 ± 44083.424 ns/op
> BenchmarkCRC.pureJavaCrc32 avgt 5 4657756.671 ± 177243.254 ns/op
> {noformat}
> JMH version: 1.21
> VM version: JDK 1.8.0_131, Java HotSpot(TM) 64-Bit Server VM, 25.131-b11
> VM invoker: /usr/lib/jvm/java-8-oracle/jre/bin/java
> op system : ubuntu 16.10
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