Thread (38 messages) 38 messages, 6 authors, 2026-01-04

Re: [PATCH v2 8/8] powerpc: Enable Generic Entry/Exit for syscalls.

From: Segher Boessenkool <hidden>
Date: 2025-12-14 16:31:35
Also in: lkml

Hi!

On Sun, Dec 14, 2025 at 06:32:44PM +0530, Mukesh Kumar Chaurasiya wrote:
| Test            | With Patch | Without Patch | % Change |
| --------------- | ---------- | ------------- | -------- |
| fork usec/op    | 833.986    | 814.809       | +2.35%   |
What causes this regression, did you investigate?  Maybe there is
something simple you can do to avoid this degradation :-)  All other
numbers look just fine :-)
| Test            | With Patch | Without Patch | % Change |
| --------------- | ---------- | ------------- | -------- |
| fork ops/sec    | 1,199      | 1,227         | -2.28%   |
(Same thing seen from another side)


Segher
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