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| author | Joe Damato <jdamato@fastly.com> | 2024-06-07 23:04:47 +0000 |
|---|---|---|
| committer | Noah Goldstein <goldstein.w.n@gmail.com> | 2024-06-10 16:18:18 -0500 |
| commit | bef2a827a55fc759693ccc5b0f614353b8ad712d (patch) | |
| tree | fbe0af5c5fa762b6086fd47efc8633d3ad1a4722 /sysdeps/x86/configure.ac | |
| parent | 5968125f55a3a3f3394e4ebe45e1f96d4864c576 (diff) | |
| download | glibc-bef2a827a55fc759693ccc5b0f614353b8ad712d.tar.gz glibc-bef2a827a55fc759693ccc5b0f614353b8ad712d.tar.xz glibc-bef2a827a55fc759693ccc5b0f614353b8ad712d.zip | |
x86: Enable non-temporal memset tunable for AMD
In commit 46b5e98ef6f1 ("x86: Add seperate non-temporal tunable for
memset") a tunable threshold for enabling non-temporal memset was added,
but only for Intel hardware.
Since that commit, new benchmark results suggest that non-temporal
memset is beneficial on AMD, as well, so allow this tunable to be set
for AMD.
See:
https://docs.google.com/spreadsheets/d/1opzukzvum4n6-RUVHTGddV6RjAEil4P2uMjjQGLbLcU/edit?usp=sharing
which has been updated to include data using different stategies for
large memset on AMD Zen2, Zen3, and Zen4.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
Diffstat (limited to 'sysdeps/x86/configure.ac')
0 files changed, 0 insertions, 0 deletions