[jdk17u-dev] RFR: 8302736: Major performance regression in Math.log on aarch64

Andrew Haley aph at openjdk.org
Thu Jul 20 14:22:47 UTC 2023


On Thu, 20 Jul 2023 12:47:36 GMT, Andrew Haley <aph at openjdk.org> wrote:

>> I backport this for parity with 17.0.9-oracle.
>> 
>> I resolved runtime.cpp because the comment in the context 
>> differs.
>> I omitted the change to continuationFreezeThaw.cpp.
>> This file is not in 17. It contains loom code, loom is not in 17.
>
>> /integrate
> 
> It seems my comment was not addressed. Perhaps an oversight?

> @theRealAph Sorry, yes, I oversaw your comment. There is just too much boilerplate stuff on this page...

OK.
 
> So you propose to craft a different change for 17? One that only omits the WXWrite for Math.log? 

On balance, I think it'll be OK, although I'd have done something more limited. If the fix had been for 11u, I'd definitely have wanted something more cautious.

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PR Comment: https://git.openjdk.org/jdk17u-dev/pull/1588#issuecomment-1644014778


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