RFR 8191989: TLAB Refills for Sparc

Thomas Schatzl thomas.schatzl at oracle.com
Tue Dec 5 11:08:18 UTC 2017


On Thu, 2017-11-30 at 16:58 -0800, JC Beyler wrote:
> Hi all,
> The TLAB and the inline contiguous allocations handling are different
> for
> each architecture. On certain architectures, TLAB is never actually
> never
> refilled (ref:  https://bugs.openjdk.java.net/browse/JDK-8190862).
> The idea behind the implementation for Sparc is to do two things:
>   - separate TLAB usage to contiguous allocations in eden space.
>   - remove the code that augments the TLAB waste limit since that is
> already done in the common code slow path
> Bug: https://bugs.openjdk.java.net/browse/JDK-8191989
> WebRev: *http://cr.openjdk.java.net/~rasbold/8191989/webrev.01/
> <http://cr.openjdk.java.net/~rasbold/8191989/webrev.01/>*
> Does anyone see any issues with this webrev?

  same comment as the x86 change, otherwise looks good.


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