RFR: 8079315: UseCondCardMark broken in conjunction with CMS precleaning
mikael.gerdin at oracle.com
Wed May 6 14:18:03 UTC 2015
On 2015-05-05 16:52, Andrew Haley wrote:
> I've added StoreLoad barriers everywhere they're needed.
> This patch depends on the patch for 8078438, which is still not
> committed. http://cr.openjdk.java.net/~shade/8078438/webrev.02/
> This is x86 only, will do AArch64 parts in a separate patch once
> we've agreed on this.
Taking this discussion down a slightly different route in a new thread,
we could potentially change FinalMarking to look at all nonclean cards
instead of only dirty cards if UseCondCardMark is enabled.
I suspect that there is a fair bit of performance work needed to
determine which of these approaches is the most beneficial.
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