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  1. JDK
  2. JDK-8314426

runtime/os/TestTrimNative.java is failing on slow machines

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    • b12
    • linux

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        Reported by SAP. Both cases look like they could be the result of slow or overloaded test machines.

        ```
        Linuxaarc64 11.8. :

        stdout: [[0.133s][info][trimnative] Periodic native trim enabled (interval: 500 ms)
        [0.133s][info][trimnative] Native heap trimmer start
        Will spike now...
        Done spiking.
        GC...
        Sleeping...
        [0.642s][info][trimnative] Periodic Trim (1): 315M->171M (-144M) 9.717ms
        [1.143s][info][trimnative] Periodic Trim (2): 171M->171M (+0B) 0.216ms
        [1.643s][info][trimnative] Periodic Trim (3): 171M->171M (+0B) 0.228ms
        [2.144s][info][trimnative] Periodic Trim (4): 171M->171M (+0B) 0.226ms
        [2.644s][info][trimnative] Periodic Trim (5): 171M->171M (+0B) 0.270ms
        [3.144s][info][trimnative] Periodic Trim (6): 171M->171M (+0B) 0.255ms
        [3.645s][info][trimnative] Periodic Trim (7): 171M->171M (+0B) 0.221ms
        [4.145s][info][trimnative] Periodic Trim (8): 171M->171M (+0B) 0.561ms
        [4.646s][info][trimnative] Periodic Trim (9): 171M->171M (+0B) 0.228ms
        [5.144s][debug][trimnative] Trim suspended for chunk pool cleaner (1 suspend requests)
        [5.144s][debug][trimnative] Trim resumed after chunk pool cleaner
        [5.147s][info ][trimnative] Periodic Trim (10): 171M->171M (-716K) 0.558ms
        Done.
        ];
        stderr: []
        exitValue = 0

        java.lang.RuntimeException: 'Native heap trimmer stop' missing from stdout/stderr
               at jdk.test.lib.process.OutputAnalyzer.shouldContain(OutputAnalyzer.java:221)
               at TestTrimNative.checkExpectedLogMessages(TestTrimNative.java:173)
               at TestTrimNative.main(TestTrimNative.java:280)
               at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
               at java.base/java.lang.reflect.Method.invoke(Method.java:580)
               at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:333)
               at java.base/java.lang.Thread.run(Thread.java:1570)
        ```
         

        ```

        runtime/os/TestTrimNative.java#trimNativeLowInterval 15.8 linuxppc64le :

        java.lang.RuntimeException: Abnormal high number of periodic trim attempts found (more than 3000). Does the interval setting not work?
               at TestTrimNative.parseOutputAndLookForNegativeTrim(TestTrimNative.java:205)
               at TestTrimNative.main(TestTrimNative.java:304)
               at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
               at java.base/java.lang.reflect.Method.invoke(Method.java:580)
               at com.sun.javatest.regtest.agent.MainActionHelper$AgentVMRunnable.run(MainActionHelper.java:333)
               at java.base/java.lang.Thread.run(Thread.java:1583)
        ```

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                stuefe Thomas Stuefe
                stuefe Thomas Stuefe
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