RFR: 8210713: Let CollectedHeap::ensure_parsability() take care of TLAB statistics gathering
per.liden at oracle.com
Fri Sep 14 08:27:39 UTC 2018
On 09/14/2018 10:04 AM, Erik Österlund wrote:
> Hi Per,
> Looks good.
> On 2018-09-13 13:46, Per Liden wrote:
>> A call to CollectedHeap::ensure_parsability(retire_tlabs), where
>> retire_tlabs is true must always be preceded by a call to
>> CollectedHeap::accumulate_statistics_all_tlabs(), otherwise we will
>> loose TLAB statistics as it will be reset when the TLABs are retired.
>> Instead of having all collectors do this dance and risk getting it
>> wrong, I propose that we move this responsibility into
>> ensure_parsability(), which will gather the TLAB statistics if it's
>> told to retire all TLABs.
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8210713
>> Webrev: http://cr.openjdk.java.net/~pliden/8210713/webrev.0
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