]> git.baikalelectronics.ru Git - kernel.git/commit
dm: optimize reorder structure
authorMikulas Patocka <mpatocka@redhat.com>
Wed, 10 Jul 2013 22:41:18 +0000 (23:41 +0100)
committerAlasdair G Kergon <agk@redhat.com>
Wed, 10 Jul 2013 22:41:18 +0000 (23:41 +0100)
commit0da68e31e8b20c07b075be3107155b620e79ef81
tree25916d4ccb6887890e5e1d2a18cb1093863d7f32
parente1abbd439c68490d4cb5e1a594309be9ca0557c2
dm: optimize reorder structure

This reorder actually improves performance by 20% (from 39.1s to 32.8s)
on x86-64 quad core Opteron.

I have no explanation for this, possibly it makes some other entries are
better cache-aligned.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
drivers/md/dm.c