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| author | Stefano Brivio <sbrivio@redhat.com> | 2022-02-28 16:18:44 +0100 |
|---|---|---|
| committer | Stefano Brivio <sbrivio@redhat.com> | 2022-02-28 16:46:28 +0100 |
| commit | 213c397492bdc64cf26b2e7b3877e4a29dc9f8da (patch) | |
| tree | 50f69783c009918e6a1ef5a22b2d7d88407488e2 /util.h | |
| parent | deca1ebe5093affd581a27855180821a8b6b3079 (diff) | |
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passt, pasta: Run-time selection of AVX2 build
Build-time selection of AVX2 flags and routines is not practical for
distributions, but limiting AVX2 usage to checksum routines with
specific run-time detection doesn't allow for easy performance gains
from auto-vectorisation of batched packet handling routines.
For x86_64, build non-AVX2 and AVX2 binaries, and implement a simple
wrapper replacing the current executable with the AVX2 build if it's
available, and if AVX2 is supported by the current CPU.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Diffstat (limited to 'util.h')
0 files changed, 0 insertions, 0 deletions