Re: [PATCH 2/2] meson: Set avx512f option to auto

On Sat, Dec 17, 2022 at 12:08:08AM +0100, Paolo Bonzini wrote: > Because that's what configure used to do ( > https://lists.nongnu.org/archive/html/qemu-devel/2022-02/msg00650.html)... > > It can surely be changed but AVX512 is known to limit processor frequency. > I am not sure if the limitation

Re: [PATCH 2/2] meson: Set avx512f option to auto

On 12/16/22 15:08, Paolo Bonzini wrote: Because that's what configure used to do (https://lists.nongnu.org/archive/html/qemu-devel/2022-02/msg00650.html). .. Yeah, but I wondered if that was just a bug. It can surely be

Re: [PATCH 2/2] meson: Set avx512f option to auto

Because that's what configure used to do ( https://lists.nongnu.org/archive/html/qemu-devel/2022-02/msg00650.html)... It can surely be changed but AVX512 is known to limit processor frequency. I am not sure if the limitation is per core or extends to multiple cores, and it would be a pity if guest

Re: [PATCH 2/2] meson: Set avx512f option to auto

Ping. On 12/3/22 17:51, Richard Henderson wrote: I'm not sure why this option wasn't set the same as avx2. Signed-off-by: Richard Henderson --- meson_options.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/meson_options.txt b/meson_options.txt index 4b749ca549..f98ee

[PATCH 2/2] meson: Set avx512f option to auto

I'm not sure why this option wasn't set the same as avx2. Signed-off-by: Richard Henderson --- meson_options.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/meson_options.txt b/meson_options.txt index 4b749ca549..f98ee101e2 100644 --- a/meson_options.txt +++ b/meson_optio