RFR for JDK-6963118 Intermittent test failure: test/java/nio/channels/Selector/Wakeup.java fail intermittently (win)
srikalyan
srikalyan.chandrashekar at oracle.com
Mon Dec 9 20:14:46 UTC 2013
Hi all, a gentle reminder for review.
--
Thanks
kalyan
Ph: (408)-585-8040
On 12/2/13, 6:39 PM, srikalyan chandrashekar wrote:
> Hi all, I am working on bug JDK-6963118
> <https://bugs.openjdk.java.net/browse/JDK-6963118> .
> Root Cause:
> - Sensitive timing dependency between events in Main and Sleeper
> threads are causes for test failure.
>
> Suggested Fix:
> 1) Main thread should wait for more than 1sec(made it 3sec) and
> check more often than 50ms(made it 1ms) intervals , sleeper thread may
> be still waiting for interrupt/wakeup hence main thread waiting for
> just 1sec to flag a failure is premature . The reason is especially on
> windows high priority virus scanners etc run(we faced it when
> simulating failures) and kept the system busy.
> 2) The test is essentially a sequence of 2 events
> a)Firing up wakeups/interrupts followed by a
> b)Check
> Check the sleeper.entries value and yield the main thread as required
> so that the above 2 events step in tandem.
>
> The webrev is hosted at
> http://cr.openjdk.java.net/~cl/host_for_kal/6963118-Wakeup/ .
> Please let me know if you have any comments or suggestions.
> --
>
> --
> Thanks
> kalyan
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