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| author | Alexander Kanavin <alex.kanavin@gmail.com> | 2022-12-30 19:38:41 +0100 |
|---|---|---|
| committer | Richard Purdie <richard.purdie@linuxfoundation.org> | 2023-01-06 12:03:46 +0000 |
| commit | ba0326071edc4aa988ad5bfaa4215e24e31fc75b (patch) | |
| tree | a3e64150a376ceaeae7bf396a7261beca37191ad /scripts/lib/build_perf | |
| parent | d32dc08a77123517877f355b174606a357f746d5 (diff) | |
| download | poky-ba0326071edc4aa988ad5bfaa4215e24e31fc75b.tar.gz | |
qemux86-64: build for x86-64-v3 (2013 Haswell and later) rather than Core 2 from 2006
This allows us to
- test those more recent instruction sets (AVX, AVX2, BMI1, BMI2, F16C, FMA, LZCNT, MOVBE, XSAVE)
- benefit from improved performance across the stack both in kvm-driven system emulation and when running
on real silicon.
For example, glibc:
https://www.phoronix.com/news/Glibc-strcasecmp-AVX2-EVEX
v4 level is adding AVX-512, which is far less established, particularly Intel has famously backtracked
from supporting it in Alder Lake/Raport Lake client CPUs and AMD has only implemented it in very recent Zen4 products:
https://www.phoronix.com/news/GCC-11-x86-64-Feature-Levels
(From OE-Core rev: 6f2af1e5d1537b4d31e14946292bf58f0fd76fc9)
Signed-off-by: Alexander Kanavin <alex@linutronix.de>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'scripts/lib/build_perf')
0 files changed, 0 insertions, 0 deletions