diff options
Diffstat (limited to 'sysdeps/x86/dl-cacheinfo.h')
| -rw-r--r-- | sysdeps/x86/dl-cacheinfo.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/sysdeps/x86/dl-cacheinfo.h b/sysdeps/x86/dl-cacheinfo.h index d375a7c..d2fe61b 100644 --- a/sysdeps/x86/dl-cacheinfo.h +++ b/sysdeps/x86/dl-cacheinfo.h @@ -986,11 +986,11 @@ dl_init_cacheinfo (struct cpu_features *cpu_features) if (CPU_FEATURE_USABLE_P (cpu_features, FSRM)) rep_movsb_threshold = 2112; - /* Non-temporal stores in memset have only been tested on Intel hardware. - Until we benchmark data on other x86 processor, disable non-temporal - stores in memset. */ + /* Non-temporal stores are more performant on Intel and AMD hardware above + non_temporal_threshold. Enable this for both Intel and AMD hardware. */ unsigned long int memset_non_temporal_threshold = SIZE_MAX; - if (cpu_features->basic.kind == arch_kind_intel) + if (cpu_features->basic.kind == arch_kind_intel + || cpu_features->basic.kind == arch_kind_amd) memset_non_temporal_threshold = non_temporal_threshold; /* For AMD CPUs that support ERMS (Zen3+), REP MOVSB is in a lot of |