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From neykov <...@git.apache.org>
Subject [GitHub] brooklyn-server issue #426: Improve robustness of MemoryUsageTrackerTest
Date Thu, 10 Nov 2016 15:54:30 GMT
Github user neykov commented on the issue:

    https://github.com/apache/brooklyn-server/pull/426
  
    Looks good and works much better, see the [new build](https://builds.apache.org/view/Brooklyn/job/brooklyn-integration-tests/52/console)
    
    ```
    2016-11-10 15:47:31,205 INFO  TESTNG INVOKING: "Surefire test" - org.apache.brooklyn.util.javalang.MemoryUsageTrackerTest.testSoftUsageAndClearance()
    2016-11-10 15:47:31,206 INFO  Memory usage at start of test: MemoryUsageSummary{total=772
MB, free=652 MB, used=120 MB, usedFraction=0.1555049937704335}
    SUREFIRE-859: [GC (Allocation Failure)  265638K->264541K(753664K), 0.0252673 secs]
    SUREFIRE-859: [GC (Allocation Failure)  460429K->459760K(753152K), 0.0260455 secs]
    SUREFIRE-859: [Full GC (Ergonomics)  459760K->351817K(753152K), 0.0518254 secs]
    SUREFIRE-859: [Full GC (Ergonomics)  548263K->548101K(753152K), 0.1852436 secs]
    SUREFIRE-859: [Full GC (Ergonomics)  719375K->718997K(753152K), 0.0680970 secs]
    SUREFIRE-859: [Full GC (Ergonomics)  720275K->719974K(753152K), 0.0546380 secs]
    SUREFIRE-859: [Full GC (Allocation Failure)  719974K->8048K(753152K), 0.0267869 secs]
    2016-11-10 15:47:31,782 INFO  First soft reference cleared after 730 1M blocks created;
729 of them cleared; memory just before collected is MemoryUsageSummary{total=771 MB, free=33.7
MB, used=738 MB, usedFraction=0.9563477890253229}
    SUREFIRE-859: [Full GC (Ergonomics)  704594K->702492K(753152K), 0.2032216 secs]
    SUREFIRE-859: [Full GC (Ergonomics)  712258K->711185K(753152K), 0.0347821 secs]
    SUREFIRE-859: [Full GC (Allocation Failure)  711185K->711185K(753152K), 0.0322254 secs]
    SUREFIRE-859: [Full GC (System.gc())  711185K->8055K(753152K), 0.0285412 secs]
    SUREFIRE-859: [GC (System.gc())  8055K->8055K(645632K), 0.0029759 secs]
    SUREFIRE-859: [Full GC (System.gc())  8055K->8055K(645632K), 0.0225672 secs]
    2016-11-10 15:47:32,244 INFO  Forcing memory eviction: allocated 725 MB +- 5 MB really
free memory in 10 MB chunks; memory used from 11.5 MB -> 8.25 MB / 661 MB
    SUREFIRE-859: [GC (System.gc())  9315K->8215K(699392K), 0.0011906 secs]
    SUREFIRE-859: [Full GC (System.gc())  8215K->8063K(699392K), 0.0333181 secs]
    SUREFIRE-859: [GC (System.gc())  8063K->8063K(699392K), 0.0021073 secs]
    SUREFIRE-859: [Full GC (System.gc())  8063K->8063K(699392K), 0.0225468 secs]
    2016-11-10 15:47:32,305 INFO  Final memory usage (after forcing clear, and GC): MemoryUsageSummary{total=716
MB, free=708 MB, used=8.26 MB, usedFraction=0.01152881940671326}
    2016-11-10 15:47:32,305 INFO  TESTNG PASSED: "Surefire test" - org.apache.brooklyn.util.javalang.MemoryUsageTrackerTest.testSoftUsageAndClearance()
finished in 1100 ms
    ```
    
    Merging.


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