[jdk17u-dev] Integrated: 8318562: Computational test more than 2x slower when AVX instructions are used

Sandhya Viswanathan sviswanathan at openjdk.org
Tue Dec 19 11:34:48 UTC 2023


On Tue, 5 Dec 2023 18:15:21 GMT, Sandhya Viswanathan <sviswanathan at openjdk.org> wrote:

> A small backport PR which fixes the performance regression with vcvt* instructions on AVX platforms.
> Minor changes were required to resolve a conflict in macroAssembler_x86.cpp/hpp. The conflict was due to a change in locked_cmpxchgptr signature on mainline.
> 
> Please review.
> 
> Best Regards,
> Sandhya

This pull request has now been integrated.

Changeset: 9a104e08
Author:    Sandhya Viswanathan <sviswanathan at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk17u-dev/commit/9a104e08f79fecabf5de2e0ece914260319d2f28
Stats:     246 lines in 4 files changed: 243 ins; 0 del; 3 mod

8318562: Computational test more than 2x slower when AVX instructions are used

Reviewed-by: shade
Backport-of: 0881f2b0c43870ed10b1166d04cef9832e58629e

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PR: https://git.openjdk.org/jdk17u-dev/pull/2016


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