kernel_samsung_sm7125

jenna

Commit Graph

Author	SHA1	Message	Date
Andi Kleen	0812a579c9	[PATCH] x86-64: Add __copy_from_user_nocache This does user copies in fs write() into the page cache with write combining. This pushes the destination out of the CPU's cache, but allows higher bandwidth in some case. The theory is that the page cache data is usually not touched by the CPU again and it's better to not pollute the cache with it. Also it is a little faster. Signed-off-by: Andi Kleen <ak@suse.de>	18 years ago

Author

SHA1

Message

Date

Andi Kleen

0812a579c9

[PATCH] x86-64: Add __copy_from_user_nocache

This does user copies in fs write() into the page cache with write combining.
This pushes the destination out of the CPU's cache, but allows higher bandwidth
in some case.

The theory is that the page cache data is usually not touched by the
CPU again and it's better to not pollute the cache with it. Also it is a little
faster.

Signed-off-by: Andi Kleen <ak@suse.de>

18 years ago

1 Commits (2cbd42dbf8887c8742f8e6a286c7e5f4f5ddb56b)