RFR: 8232782: Shenandoah: streamline post-LRB CAS barrier (aarch64)

Andrew Haley aph at redhat.com
Wed Jun 24 14:29:04 UTC 2020


On 24/06/2020 14:54, Nilsen, Kelvin wrote:
> Is this ok to merge?

One thing:

Some CPUs, in particular those based on Neoverse N1, can perform very
badly when using ldxr/stxr. For that reason, all code doing CAS

I can't see any reason why your code needs to use ldxr/stxr. Is there
any?

-- 
Andrew Haley  (he/him)
Java Platform Lead Engineer
Red Hat UK Ltd. <https://www.redhat.com>
https://keybase.io/andrewhaley
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