diff options
Diffstat (limited to 'turn-REP_STOSB_THRESHOLD-from-2k-to-1M.patch')
| -rw-r--r-- | turn-REP_STOSB_THRESHOLD-from-2k-to-1M.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/turn-REP_STOSB_THRESHOLD-from-2k-to-1M.patch b/turn-REP_STOSB_THRESHOLD-from-2k-to-1M.patch new file mode 100644 index 0000000..5b766cf --- /dev/null +++ b/turn-REP_STOSB_THRESHOLD-from-2k-to-1M.patch @@ -0,0 +1,25 @@ +From 44314a556239a7524b5a6451025737c1bdbb1cd0 Mon Sep 17 00:00:00 2001 +From: Wang Shuo <wangshuo47@huawei.com> +Date: Thu, 21 May 2020 11:23:06 +0800 +Subject: [PATCH] turn REP_STOSB_THRESHOLD from 2k to 1M + +--- + sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S b/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S +index dcd63c92..92c08eed 100644 +--- a/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S ++++ b/sysdeps/x86_64/multiarch/memset-vec-unaligned-erms.S +@@ -65,7 +65,7 @@ + Enhanced REP STOSB. Since the stored value is fixed, larger register + size has minimal impact on threshold. */ + #ifndef REP_STOSB_THRESHOLD +-# define REP_STOSB_THRESHOLD 2048 ++# define REP_STOSB_THRESHOLD 1048576 + #endif + + #ifndef SECTION +-- +2.19.1 + |