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  1. JDK
  2. JDK-8355026

ForkJoinPool threads stall for 10 minutes when running MultiJVM modes of SPECjbb2015

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    • Icon: Bug Bug
    • Resolution: Cannot Reproduce
    • Icon: P4 P4
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    • 24, 25
    • core-libs
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      Since JDK-8344773, there is an occasional stall when running some MultiJVM modes of SPECjbb2015. In the commit of JDK-8344773, the array of WorkQueue increased from 2^6 to 2^9 for shared queues. If we change this back as 0001-Original-size-of-queue-capacity.patch, the stall will disappear. But it does not help if we break out the loop of awaitWork for shared queue as 0001-Prevent-parking-for-shared-work-queues.patch. So it is unclear about the relation of the increase of capacity and the stall.

        1. 0001-Original-size-of-queue-capacity.patch
          2 kB
        2. 0001-Prevent-parking-for-shared-work-queues.patch
          1 kB

            vklang Viktor Klang
            lliu Liming Liu
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