From: Ingo Molnar <mingo@elte.hu>
Date: Mon, 22 Sep 2008 14:29:00 +0000 (+0200)
Subject: sched: turn off WAKEUP_OVERLAP
X-Git-Tag: v2.6.28-rc1~725^2~2^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f681bbd656b01439be904250a1581ca9c27505a1;p=pandora-kernel.git

sched: turn off WAKEUP_OVERLAP

WAKEUP_OVERLAP is not a winner on a 16way box, running psql+sysbench:

       .27-rc7-NO_WAKEUP_OVERLAP  .27-rc7-WAKEUP_OVERLAP
-------------------------------------------------
    1:             694              811    +14.39%
    2:            1454             1427    -1.86%
    4:            3017             3070    +1.70%
    8:            5694             5808    +1.96%
   16:           10592            10612    +0.19%
   32:            9693             9647    -0.48%
   64:            8507             8262    -2.97%
  128:            8402             7087    -18.55%
  256:            8419             5124    -64.30%
  512:            7990             3671    -117.62%
-------------------------------------------------
  SUM:           64466            55524    -16.11%

... so turn it off by default.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

Reading git-diff-tree failed