diff options
| author | Jan Beulich <JBeulich@suse.com> | 2012-11-02 14:20:24 +0000 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-01-25 09:23:50 +0100 |
| commit | f317820cb6ee3fb173319bf76e0e62437be78ad2 (patch) | |
| tree | fc57358da4ba9f11a8d80e508d01e99c2c62c1f9 /arch/x86/include/uapi/asm/ldt.h | |
| parent | e8f6e3f8a14bae98197c6d9f280cd23d22eb1a33 (diff) | |
x86/xor: Add alternative SSE implementation only prefetching once per 64-byte line
On CPUs with 64-byte last level cache lines, this yields roughly
10% better performance, independent of CPU vendor or specific
model (as far as I was able to test).
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/5093E4B802000078000A615E@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/uapi/asm/ldt.h')
0 files changed, 0 insertions, 0 deletions