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authorStefano Brivio <sbrivio@redhat.com>2022-02-28 16:18:44 +0100
committerStefano Brivio <sbrivio@redhat.com>2022-02-28 16:46:28 +0100
commit213c397492bdc64cf26b2e7b3877e4a29dc9f8da (patch)
tree50f69783c009918e6a1ef5a22b2d7d88407488e2 /dhcp.c
parentdeca1ebe5093affd581a27855180821a8b6b3079 (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>
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