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| author | Feifei Wang <wangfeifei@hygon.cn> | 2024-08-19 14:57:55 +0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-08-26 10:01:58 -0700 |
| commit | ca90758b2a2b1c21fcf1f04b3e5ddad238b3aefe (patch) | |
| tree | f3ab4608b2b8c39faab2b4055018d5eeb1d84735 /sysdeps/stub/pause.c | |
| parent | d14aecbffc032c97d86fdbfdcb7991d1a55e8399 (diff) | |
| download | glibc-master.tar.gz glibc-master.tar.xz glibc-master.zip | |
This patch uses 'Avoid_Non_Temporal_Memset' flag to access the non-temporal memset implementation for hygon processors. Test Results: hygon1 arch x86_memset_non_temporal_threshold = 8MB size new performance time / old performance time 1MB 0.994 4MB 0.996 8MB 0.670 16MB 0.343 32MB 0.355 hygon2 arch x86_memset_non_temporal_threshold = 8MB size new performance time / old performance time 1MB 1 4MB 1 8MB 1.312 16MB 0.822 32MB 0.830 hygon3 arch x86_memset_non_temporal_threshold = 8MB size new performance time / old performance time 1MB 1 4MB 0.990 8MB 0.737 16MB 0.390 32MB 0.401 For hygon arch with this patch, non-temporal stores can improve performance by 20% - 65%. Signed-off-by: Feifei Wang <wangfeifei@hygon.cn> Reviewed-by: Jing Li <lijing@hygon.cn> Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'sysdeps/stub/pause.c')
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