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(parent: 41a259b) | patch
buffer_is_zero: use vector optimizations if possible
authorPeter Lieven <pl@kamp.de>
Tue, 26 Mar 2013 09:58:33 +0000 (10:58 +0100)
committerJuan Quintela <quintela@redhat.com>
Tue, 26 Mar 2013 12:32:32 +0000 (13:32 +0100)
commit56ded708ec38e4cb75a7c7357480ca34c0dc6875
tree5819b3f8f66612df3b1ad07ef74e5286c89fb780tree
parent41a259bd2b1796ddabdae600ee539269a7ddb6a5commit | diff
buffer_is_zero: use vector optimizations if possible

performance gain on SSE2 is approx. 20-25%. altivec
is not tested. performance for unsigned long arithmetic
is unchanged.

Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
util/cutils.c diff | blob | blame | history
Qemu copy for testing