]> git.karo-electronics.de Git - karo-tx-linux.git/commit
sched: Optimize branch hint in context_switch()
authorTim Blechmann <tim@klingt.org>
Tue, 24 Nov 2009 10:55:27 +0000 (11:55 +0100)
committerIngo Molnar <mingo@elte.hu>
Tue, 24 Nov 2009 11:18:42 +0000 (12:18 +0100)
commit710390d90f143a9ebb87a475215140f426792efd
tree53b2019edf0d25f3530e0c169ec01e7e115125d1
parent36ace27e3e60d44ea69ce394b2e45386ae98d9d9
sched: Optimize branch hint in context_switch()

Branch hint profiling on my nehalem machine showed over 90%
incorrect branch hints:

  10420275 170645395  94 context_switch                 sched.c
   3043
  10408421 171098521  94 context_switch                 sched.c
   3050

Signed-off-by: Tim Blechmann <tim@klingt.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
LKML-Reference: <4B0BBB9F.6080304@klingt.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
kernel/sched.c