4 Aug
2022
4 Aug
'22
16:40
Hi, On Thu, Aug 04 2022, dieter wrote:
On Thu, 28 Jul 2022 11:44:03 +0000 (UTC) Richard Biener wrote:
Thus I would propose raising the x86_64 architecture level to x86-64-v2 for openSUSE Factory. v2 requires CMPXCHG16B, [SL]AHF, POPCNT and SSE4_2 (and the predecessor SSE extensions) but not AVX, BMI or FMA.
...
Comments welcome.
Hi,
Are there some data available about the actual benefit of this change?
Over the weekend, I have quickly gathered some SPEC CPU benchmarks results comparing the different x86_64 versions: https://jamborm.github.io/spec-2022-07-29-levels/index.html Martin