[PATCH] RISC-V: Clobber V registers on syscalls

Andy Chiu andy.chiu at sifive.com
Sat Jun 24 01:41:45 PDT 2023


On Fri, Jun 23, 2023 at 12:38 AM Björn Töpel <bjorn at kernel.org> wrote:
> This flow does avoid some context switch costs, but I wonder if this is
> some that can be added later, when we can more reliable measure the
> overhead. Premature optimization, and all that. ;-)
>

Sure, do you suggest any kinds of measurement, experiment, or
benchmarking that could give out a figure on how things are different?

>
> Björn

Thanks,
Andy



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