RFR: 8069273: Decrease Hot Card Cache Lock contention
thomas.schatzl at oracle.com
Tue Jan 27 13:56:01 UTC 2015
On Tue, 2015-01-27 at 11:32 +0100, Claes Redestad wrote:
> Hi again,
> new webrev: http://cr.openjdk.java.net/~redestad/8069273/webrev.04/
> This version fixes a crash issue in G1HotCardCache::reset_hot_cache when
it would be nice to add a test case that checks boundary values like
that for this flag.
> G1HotCardCache::hot_cache_is_empty was broken in the same way, but
> since it was unused I've opted to remove it rather than fix it.
It would be nice if G1HotCardCache::initialize() used the reset()
method. Then the initialization code would not need to be duplicated.
The problem are the asserts in the reset() method - either create a
reset_int(), or weaken the asserts by adding a !
Looks good otherwise.
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