RFR: 8180421: Change default value of BiasedLockingStartupDelay to 0

Thomas Schatzl thomas.schatzl at oracle.com
Tue Jun 27 14:20:59 UTC 2017


On Mon, 2017-06-26 at 15:17 +0200, Robbin Ehn wrote:
> Hi all, please review.
> On behalf of Stefan J, this patch changes the default value of
> BiasedLockingStartupDelay to 0.
> "The delay is however a problem for the some of the GC algorithms
> that use the mark-word."
> "Benchmark runs doesn't show any regressions for either startup times
> or steady state performance when setting it to 0."
> CSR: https://bugs.openjdk.java.net/browse/JDK-8181778
> Issue: https://bugs.openjdk.java.net/browse/JDK-8180421

  looks good.


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