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Hi Kishor,<br>
<br>
Sending to 'hotspot-gc-dev' as well.<br>
<br>
<div class="moz-cite-prefix">On 1/17/19 6:42 PM, Kharbas, Kishor
wrote:<br>
</div>
<blockquote type="cite"
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<p class="MsoNormal">Greetings,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I ran this test multiple times on Linux
& Windows and the tests complete in less than a second.
However, I do not have a sparc system to test (if I am
correct, earlier discussion pointed that timeout issue is seen
on sparc).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My guess of what is happening is – For
testing purposes we use the file system of the test directory,
instead of a dax filesystem for nv-dimm. With the
AllocateHeapAt flag set, heap memory is mapped to a temporary
file in the test directory. Depending on the test environment
(filesystem, memory, disk, etc), heap memory access might be
quite slower.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">So I think we should decrease the heap size
of the tests. The 5th & 6th subtests can be changed to use
32M instead of 4G. The 4<sup>th</sup> subtest can be removed.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here is the patch with the changes - <a
href="http://cr.openjdk.java.net/%7Ekkharbas/8213695/webrev.00/"
moz-do-not-send="true">
http://cr.openjdk.java.net/~kkharbas/8213695/webrev.00/</a></p>
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Looks good to me.<br>
And I can sponsor this patch, but we need a review from a
(R)eviewer.<br>
<br>
FYI, I tested the patch on sparc machines(same kind of machines
which reported the problem) for 40 times and its run time was mostly
less than 3 seconds.<br>
<br>
Thanks,<br>
Sangheon<br>
<br>
<br>
<blockquote type="cite"
cite="mid:F89640DCD01A85489FCBA68183A6A0F3BECA02A7@ORSMSX116.amr.corp.intel.com">
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<p class="MsoNormal"><o:p></o:p></p>
<p class="MsoNormal">Hopefully someone can test whether this
change makes the run time deterministic.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Kishor<o:p></o:p></p>
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