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| author | Bruno Randolf <br1@einfach.org> | 2010-12-02 10:50:37 (GMT) |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2010-12-06 20:58:43 (GMT) |
| commit | af5568843594fb71055debe36e521fa8072fcecc (patch) | |
| tree | 4f35966cb4e1018b05c87d7a10c337d888949e22 /sound/ppc | |
| parent | 5dcc03fe29537edd7819f5b121bf3d779693f37b (diff) | |
| download | linux-af5568843594fb71055debe36e521fa8072fcecc.tar.xz | |
lib: Improve EWMA efficiency by using bitshifts
Using bitshifts instead of division and multiplication should improve
performance. That requires weight and factor to be powers of two, but i think
this is something we can live with.
Thanks to Peter Zijlstra for the improved formula!
Signed-off-by: Bruno Randolf <br1@einfach.org>
--
v2: use log2.h functions
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'sound/ppc')
0 files changed, 0 insertions, 0 deletions