Re: [patch 00/11] rseq: Optimize exit to user space

[Michael Jeanson]

On 2025-08-18 16:21, Thomas Gleixner wrote:
> That looks about right. Can you reset the branch to
>
>       commit 85b61b265635 ("rseq: Expose stats")
>
> which is just adding primitive stats on top of the current mainline
> code, and provide numbers for that too?
>
> That gives you 'notify: , cpuid:, fixup:' numbers, which are not 1:1
> mappable to the final ones, but that should give some interesting
> insight.

For amd64 kernel and userspace.

Before:

notify:             12467
fixup:              12467
cpuid:              12467


After:

notify:         123669528
fixup:          123669528
cpuid:          123669528


For amd64 kernel, i386 userspace.

Before:

notify:             12857
fixup:              12857
cpuid:              12857


After:

notify:         120621210
fixup:          120621210
cpuid:          120621210


> Might be useful to put such instructions into README.md, no?

Will do.

Regards,

Michael