JDK-8317763 : Follow-up to AVX512 intrinsics for Arrays.sort() PR
  • Type: Enhancement
  • Component: core-libs
  • Sub-Component: java.util
  • Affected Version: 22
  • Priority: P4
  • Status: Resolved
  • Resolution: Fixed
  • OS: linux
  • CPU: x86_64
  • Submitted: 2023-10-10
  • Updated: 2024-11-23
  • Resolved: 2023-10-12
The Version table provides details related to the release that this issue/RFE will be addressed.

Unresolved : Release in which this issue/RFE will be addressed.
Resolved: Release in which this issue/RFE has been resolved.
Fixed : Release in which this issue/RFE has been fixed. The release containing this fix may be available for download as an Early Access Release or a General Availability Release.

To download the current JDK release, click here.
JDK 22
22 b20Fixed
Related Reports
Relates :  
JDK-8309130 - x86_64 AVX512 intrinsics for Arrays.sort methods (int, long, float and double arrays)
Relates :  
JDK-8317976 - Optimize SIMD sort for AMD Zen 4
Description
The goal of this PR is to address the follow-up comments to the SIMD accelerated sort PR (#14227) which implemented AVX512 intrinsics for Arrays.sort() methods. 
The proposed changes are:

1) Restriction of the AVX512 sort acceleration to only Intel CPUs. A performance regression (due to micro-architectural differences) was reported for AMD Zen4 CPUs in the comments section of PR #14227.
2) Addressing the build failure due to a bug in GCC 12 (which was fixed in version 12.3.1). The details of the bug are at: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105593
3) Minor changes in Javadoc strings
Comments
A pull request was submitted for review. Branch: master URL: https://git.openjdk.org/jdk/pull/16124 Date: 2023-10-10 16:44:03 +0000
23-11-2024
Changeset: 2edf9c3f Author: vamsi-parasa <srinivas.vamsi.parasa@intel.com> Committer: Vladimir Kozlov <kvn@openjdk.org> Date: 2023-10-12 04:45:19 +0000 URL: https://git.openjdk.org/jdk/commit/2edf9c3f1e968779c6e92b3e25d780db68ace5cc
12-10-2023