glibc

system/glibc

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Commit Graph

Author	SHA1	Message	Date
Ulrich Drepper	c0dde15b5d	32bit memset-sse2.S fails with uneven cache size 32bit memset-sse2.S assumes cache size is multiple of 128 bytes. If it isn't true, memset-sse2.S will fail. For example, a processor can have 24576 KB L3 cache and 20 cores. That is 2516582 byte per core. Half of it is 1258291, which isn't helpful for vector instructions. This patch rounds cache sizes to multiple of 256 bytes and adds "raw" cache sizes.	2010-11-05 07:57:46 -04:00
H.J. Lu	3af48cbdfa	Optimize 32bit memset/memcpy with SSE2/SSSE3.	2010-01-12 11:22:03 -08:00
H.J. Lu	6f6f1215f6	Support multiarch for i686. This patch adds multiarch support when configured for i686. I modified some x86-64 functions to support 32bit. I will contribute 32bit SSE string and memory functions later.	2009-07-31 11:53:35 -07:00

Author

SHA1

Message

Date

Ulrich Drepper

c0dde15b5d

32bit memset-sse2.S fails with uneven cache size

32bit memset-sse2.S assumes cache size is multiple of 128 bytes.  If
it isn't true, memset-sse2.S will fail.  For example, a processor can
have 24576 KB L3 cache and 20 cores. That is 2516582 byte per core. Half
of it is 1258291, which isn't helpful for vector instructions.  This
patch rounds cache sizes to multiple of 256 bytes and adds "raw" cache
sizes.

2010-11-05 07:57:46 -04:00

H.J. Lu

3af48cbdfa

Optimize 32bit memset/memcpy with SSE2/SSSE3.

2010-01-12 11:22:03 -08:00

H.J. Lu

6f6f1215f6

Support multiarch for i686.

This patch adds multiarch support when configured for i686.  I modified
some x86-64 functions to support 32bit. I will contribute 32bit SSE string
and memory functions later.

2009-07-31 11:53:35 -07:00

3 Commits