A Nasty Performance Regression For Some Intel Systems Wound Up In Linux 6.5 Stable

Written by Michael Larabel in Software on 13 September 2023 at 04:00 PM EDT. Page 5 of 6. 5 Comments.
Timed Godot Game Engine Compilation benchmark with settings of Time To Compile. Linux 6.4.14 was the fastest.
Timed Linux Kernel Compilation benchmark with settings of Build: defconfig. Linux 6.4.14 was the fastest.
Timed LLVM Compilation benchmark with settings of Build System: Ninja. Linux 6.4.14 was the fastest.

Code compilation performance was also dragged lower with Linux 6.5 stable.

Redis benchmark with settings of Test: GET, Parallel Connections: 50. Linux 6.4.14 was the fastest.
Redis benchmark with settings of Test: LPOP, Parallel Connections: 50. Linux 6.4.14 was the fastest.

The Redis performance was dragged lower by Linux 6.5.

Neural Magic DeepSparse benchmark with settings of Model: NLP Text Classification, BERT base uncased SST2, Sparse INT8, Scenario: Asynchronous Multi-Stream. Linux 6.4.14 was the fastest.
Neural Magic DeepSparse benchmark with settings of Model: ResNet-50, Baseline, Scenario: Asynchronous Multi-Stream. Linux 6.4.14 was the fastest.

AI workloads like Neural Magic's DeepSparse also suffered from a regression on this Raptor Lake system with Linux 6.5.

Blender benchmark with settings of Blend File: Fishy Cat, Compute: CPU-Only. Linux 6.4.14 was the fastest.
OpenVINO benchmark with settings of Model: Face Detection FP16, Device: CPU. Linux 6.4.14 was the fastest.
OpenVINO benchmark with settings of Model: Person Detection FP16, Device: CPU. Linux 6.4.14 was the fastest.
OpenVINO benchmark with settings of Model: Vehicle Detection FP16, Device: CPU. Linux 6.4.14 was the fastest.
OpenVINO benchmark with settings of Model: Machine Translation EN To DE FP16, Device: CPU. Linux 6.4.14 was the fastest.

Toss Blender and OpenVINO into the regressed group too...

nginx benchmark with settings of Connections: 1000. Linux 6.4.14 was the fastest.
PHPBench benchmark with settings of PHP Benchmark Suite. Linux 6.4.14 was the fastest.

Traditional LAMP software was also hurt on Linux 6.5 stable. By now you get the point though, Linux 6.5 stable as of right now is in particularly poor shape at least for this particular Intel Core i9 13900K system.


Related Articles
Intel Core Ultra "Meteor Lake" Performance Improves With Linux 6.9
GCC 14 vs. LLVM Clang 18 Compiler Performance On Fedora 40
Intel Xeon Max Sees Some Performance Gains For OpenVINO & ONNX With Linux 6.9
Linux 6.9 Drives AMD 4th Gen EPYC Performance Even Higher For Some Workloads
Intel Core Ultra "Meteor Lake" Yields Faster Performance With Linux 6.9
Google Cloud's C3D Instances Provide Strong Performance Value For PingCAP's TiDB