RFR(S/M): 8246476: remove AsyncDeflateIdleMonitors option and the safepoint based deflation mechanism
david.holmes at oracle.com
Wed Jul 8 07:51:31 UTC 2020
On 8/07/2020 7:21 am, Daniel D. Daugherty wrote:
> Ping! Any takers??? Code deletion should be really appealing here!!
Sorry Dan didn't get to it before vacation. But if you can wait till
> On 7/6/20 12:35 PM, Daniel D. Daugherty wrote:
>> It's time to remove the AsyncDeflateIdleMonitors option from JDK16. We
>> also get rid of the safepoint based deflation mechanism since turning off
>> async deflation (-XX:-AsyncDeflateIdleMonitors) was the only way left to
>> use it.
>> This is marked as an "S/M" review because the number of touched/deleted
>> lines makes it a Medium review, but the number of touched/changed lines
>> (outside of the deletions) makes it a Small review. It's actually a
>> fast read... :-)
>> Here's the bug ID:
>> JDK-8246476 remove AsyncDeflateIdleMonitors option and the safepoint
>> based deflation mechanism
>> Here's the webrev URL:
>> The webrev is baselined on Thomas S's fix for 8248650 which is jdk-16+4
>> plus a dozen or so changesets.
>> This change has been tested with Mach5 Tier[1-3],4,5,6,7,8 and there are
>> no regressions (and very few known failures). My inflation stress testing
>> is still in process. I had to restart that testing after a thunderstorm
>> related power failure took down my servers in Florida. Sigh...
>> Thanks, in advance, for any comments, questions, or suggestions.
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