RFR(s): 8152422: Optimize GC JPRT test set

Dmitry Fazunenko dmitry.fazunenko at oracle.com
Tue Mar 29 11:08:39 UTC 2016


Thank you, Per.

-- Dima

On 29.03.2016 12:37, Per Liden wrote:
> Hi Dima,
>
> On 2016-03-23 18:28, Dmitry Fazunenko wrote:
>> Hello,
>>
>> may I have a couple of reviews for a quite trivial fix, which splits up
>> the hotspot_gc jtreg group:
>>
>> http://cr.openjdk.java.net/~dfazunen/8152422/webrev.00/
>> https://bugs.openjdk.java.net/browse/JDK-8152422
>
> Looks good.
>
> cheers,
> Per
>
>>
>> The purpose of the split is to parallelize the execution of GC tests in
>> JPRT.
>> Running the tests located under the gc/g1 folder takes approximately the
>> same amount of time as running other tests.
>>
>> To reduce the execution time (for ~20%) I propose to remove a couple of
>> slow tests from JPRT run:
>>
>> 38,52 : gc/cms/TestMBeanCMS.java (former name
>> test/gc/6581734/Test6581734.java)
>>     CMS is updating vary rare now, so it's very unlikely to break the
>> area under this test
>>
>> 18,05 :
>> gc/survivorAlignment/TestPromotionFromSurvivorToTenuredAfterMinorGC.java
>>     There will remain  3 very similar tests for survivor alignment
>>           5,38 : 
>> gc/survivorAlignment/TestPromotionFromEdenToTenured.java
>>           6,47 : gc/survivorAlignment/TestAllocationInEden.java
>>           6,78 :
>> gc/survivorAlignment/TestPromotionFromSurvivorToTenuredAfterFullGC.java
>>      so dropping this test will not create a gap in testing.
>>
>> I also restored test which were excluded from JPRT execution a year ago:
>>     90,66 : gc/g1/TestGreyReclaimedHumongousObjects.java
>>    the test is the slowest one, but after the split it fits the budget.
>>
>> If someone has objections on adding/removing JPRT tests, please speak 
>> up.
>>
>> Thanks,
>> Dima
>>
>> PS:
>> The new statistics (taken from
>> linux_i586_3.8-fastdebug-c1-hotspot_gc_*.log)  now looks like:
>> *:hotspot_gc_1**
>> *       0,12 : gc/g1/TestShrinkAuxiliaryData25.java
>>         0,14 : gc/g1/TestShrinkAuxiliaryData05.java
>>         0,21 : gc/g1/TestShrinkAuxiliaryData10.java
>>         0,21 : gc/g1/TestShrinkAuxiliaryData15.java
>>         0,23 : gc/g1/TestShrinkAuxiliaryData30.java
>>         0,28 : gc/g1/TestShrinkToOneRegion.java
>>         0,31 : gc/g1/TestStringSymbolTableStats.java
>>         0,38 : gc/g1/TestRegionAlignment.java
>>         0,43 : gc/g1/TestStringDeduplicationInterned.java
>>         0,45 : gc/g1/TestHumongousAllocInitialMark.java
>>         0,54 : gc/g1/TestShrinkAuxiliaryData20.java
>>         0,55 : gc/g1/TestRegionLivenessPrint.java
>>         0,63 : gc/g1/TestNoEagerReclaimOfHumongousRegions.java
>>         0,64 : gc/g1/TestHumongousAllocNearlyFullRegion.java
>>         0,67 : gc/g1/TestRemsetLoggingPerRegion.java
>>         0,68 : gc/g1/humongousObjects/TestObjectCollected.java
>>         0,77 : gc/g1/TestStringDeduplicationFullGC.java
>>         0,80 : gc/g1/Test2GbHeap.java
>>         0,82 : gc/g1/TestPLABOutput.java
>>         0,86 : gc/g1/TestPrintRegionRememberedSetInfo.java
>>         0,93 : gc/g1/TestStringDeduplicationTableResize.java
>>         0,94 : gc/g1/TestHumongousShrinkHeap.java
>>         0,95 : gc/g1/humongousObjects/TestHumongousMovement.java
>>         1,00 : gc/g1/TestShrinkAuxiliaryData00.java
>>         1,02 : gc/g1/TestStringDeduplicationTableRehash.java
>>         1,02 : gc/g1/TestStringDeduplicationYoungGC.java
>>         1,05 : gc/g1/TestRemsetLoggingThreads.java
>>         1,17 : gc/g1/TestShrinkDefragmentedHeap.java
>>         1,37 : gc/g1/TestStringDeduplicationPrintOptions.java
>>         1,48 : gc/g1/TestGCLogMessages.java
>>         1,94 : gc/g1/TestStringDeduplicationAgeThreshold.java
>>         2,21 : gc/g1/TestPLABSizeBounds.java
>>         2,36 : gc/g1/TestLargePageUseForAuxMemory.java
>>         2,72 : gc/g1/TestEagerReclaimHumongousRegionsWithRefs.java
>>         2,85 : gc/g1/TestEagerReclaimHumongousRegions.java
>>         2,87 : gc/g1/TestG1TraceEagerReclaimHumongousObjects.java
>>         2,88 : gc/g1/TestRemsetLogging.java
>>         3,57 : gc/g1/plab/TestPLABResize.java
>>         8,26 : gc/g1/humongousObjects/TestHeapCounters.java
>>         8,72 : gc/g1/humongousObjects/TestHumongousThreshold.java
>>        10,95 : gc/g1/TestHumongousCodeCacheRoots.java
>>        14,49 : gc/g1/plab/TestPLABPromotion.java
>>        52,17 : gc/g1/TestEagerReclaimHumongousRegionsClearMarkBits.java
>>        59,11 : 
>> gc/g1/humongousObjects/TestHumongousNonArrayAllocation.java
>>        90,66 : gc/g1/TestGreyReclaimedHumongousObjects.java
>> SUMMARY:
>>     Totat tests: 45
>>     Totat time: 4m 46s
>>
>> *:hotspot_gc_2**
>> *       0,08 : gc/arguments/TestCompressedClassFlags.java
>>         0,09 : gc/startup_warnings/TestDefNewCMS.java
>>         0,20 : gc/startup_warnings/TestParNewSerialOld.java
>>         0,21 : gc/arguments/TestUseNUMAInterleaving.java
>>         0,28 : gc/startup_warnings/TestParallelScavengeSerialOld.java
>>         0,28 : gc/startup_warnings/TestParallelGC.java
>>         0,29 : gc/startup_warnings/TestParNewCMS.java
>>         0,30 : gc/logging/TestPrintReferences.java
>>         0,30 : gc/startup_warnings/TestG1.java
>>         0,30 : gc/cms/TestCMSScavengeBeforeRemark.java
>>         0,31 : gc/TestVerifyDuringStartup.java
>>         0,32 : gc/startup_warnings/TestSerialGC.java
>>         0,33 : gc/TestVerifySubSet.java
>>         0,37 : gc/TestNUMAPageSize.java
>>         0,37 : sanity/ExecuteInternalVMTests.java
>>         0,37 : gc/metaspace/TestMetaspaceInitialization.java
>>         0,41 : gc/whitebox/TestWBGC.java
>>         0,47 : gc/arguments/TestSelectDefaultGC.java
>>         0,47 : gc/TestVerifySilently.java
>>         0,50 : gc/arguments/TestUnrecognizedVMOptionsHandling.java
>>         0,51 : gc/startup_warnings/TestCMS.java
>>         0,53 : gc/arguments/TestG1ConcMarkStepDurationMillis.java
>>         0,53 : gc/arguments/TestNewSizeThreadIncrease.java
>>         0,60 : gc/arguments/TestG1ConcRefinementThreads.java
>>         0,67 : gc/arguments/TestG1HeapRegionSize.java
>>         0,77 : gc/arguments/TestArrayAllocatorMallocLimit.java
>>         0,80 : gc/class_unloading/TestG1ClassUnloadingHWM.java
>>         0,80 : gc/TestFullGCCount.java
>>         0,80 : gc/arguments/TestG1PercentageOptions.java
>>         0,89 : gc/arguments/TestHeapFreeRatio.java
>>         0,94 : gc/parallel/AdaptiveGCBoundary.java
>>         0,97 : gc/arguments/TestSurvivorAlignmentInBytesOption.java
>>         0,97 : gc/logging/TestGCId.java
>>         1,01 : gc/logging/TestDeprecatedPrintFlags.java
>>         1,03 : gc/TestCardTablePageCommits.java
>>         1,08 : gc/arguments/TestInitialTenuringThreshold.java
>>         1,10 : gc/metaspace/TestPerfCountersAndMemoryPools.java
>>         1,21 : gc/metaspace/TestMetaspaceSizeFlags.java
>>         1,26 : gc/arguments/TestUseCompressedOopsErgo.java
>>         1,30 : gc/TestDisableExplicitGC.java
>>         1,57 : gc/class_unloading/TestCMSClassUnloadingEnabledHWM.java
>>         1,62 : gc/whitebox/TestConcMarkCycleWB.java
>>         1,71 : gc/serial/HeapChangeLogging.java
>>         1,73 : gc/arguments/TestVerifyBeforeAndAfterGCFlags.java
>>         1,86 : gc/metaspace/TestCapacityUntilGCWrapAround.java
>>         1,88 : gc/metaspace/TestMetaspaceMemoryPool.java
>>         1,91 : gc/TestSoftReferencesBehaviorOnOOME.java
>>         2,06 : gc/TestSmallHeap.java
>>         2,15 : gc/metaspace/G1AddMetaspaceDependency.java
>>         2,15 : gc/arguments/TestParallelGCThreads.java
>>         2,16 : gc/arguments/TestAlignmentToUseLargePages.java
>>         2,18 : gc/arguments/TestDynMinHeapFreeRatio.java
>>         2,18 : gc/TestSystemGC.java
>>         2,35 : gc/arguments/TestDynMaxHeapFreeRatio.java
>>         2,36 : gc/parallel/TestPrintGCDetailsVerbose.java
>>         2,38 : gc/ergonomics/TestDynamicNumberOfGCThreads.java
>>         2,40 : gc/TestObjectAlignment.java
>>         2,53 : gc/parallel/TestDynShrinkHeap.java
>>         2,56 : gc/cms/GuardShrinkWarning.java
>>         2,59 : gc/arguments/TestSerialHeapSizeFlags.java
>>         2,59 : gc/arguments/TestG1HeapSizeFlags.java
>>         2,64 : gc/arguments/TestNewRatioFlag.java
>>         2,64 : gc/arguments/TestParallelHeapSizeFlags.java
>>         2,77 : gc/cms/TestBubbleUpRef.java
>>         2,78 : gc/arguments/TestCMSHeapSizeFlags.java
>>         3,60 : gc/arguments/TestObjectTenuringFlags.java
>>         4,34 : gc/survivorAlignment/TestPromotionFromEdenToTenured.java
>>         4,57 : gc/arguments/TestMinAndInitialSurvivorRatioFlags.java
>>         4,64 : gc/survivorAlignment/TestAllocationInEden.java
>>         4,84 : gc/TestBigObj.java
>>         5,19 : gc/arguments/TestNewSizeFlags.java
>>         5,19 : gc/arguments/TestMinInitialErgonomics.java
>>         6,18 :
>> gc/survivorAlignment/TestPromotionFromSurvivorToTenuredAfterFullGC.java
>>         6,63 : gc/arguments/TestTargetSurvivorRatioFlag.java
>>         6,63 : gc/CondCardMark/Basic.java
>>         7,15 : gc/arguments/TestMaxNewSize.java
>>         7,63 : gc/arguments/TestSurvivorRatioFlag.java
>>        10,69 : gc/metaspace/TestMetaspacePerfCounters.java
>>        14,45 : gc/cms/DisableResizePLAB.java
>>        27,59 : gc/arguments/TestShrinkHeapInSteps.java
>>        40,39 : gc/arguments/TestMaxMinHeapFreeRatioFlags.java
>> SUMMARY:
>>     Totat tests: 81
>>     Totat time: 3m 59s
>>



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