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(parent: ab0fcb9) | patch
sched: fine-tune SD_SIBLING_INIT
authorIngo Molnar <mingo@elte.hu>
Fri, 7 Nov 2008 15:09:23 +0000 (16:09 +0100)
committerGreg Kroah-Hartman <gregkh@suse.de>
Thu, 1 Apr 2010 22:52:20 +0000 (15:52 -0700)
commitaa7659a10684907bec7c0c6887f8755767fb8dea
tree236377bbfc6e50415e58d0d42880ee0625287df3tree | snapshot
parentab0fcb9bdab0106011209d5c8b873bdf0fbd1955commit | diff
sched: fine-tune SD_SIBLING_INIT

commit 52c642f33b14bfa1b00ef2b68296effb34a573f3 upstream.

fine-tune the HT sched-domains parameters as well.

On a HT capable box, this increases lat_ctx performance from 23.87
usecs to 1.49 usecs:

 # before

 $ ./lat_ctx -s 0 2

   "size=0k ovr=1.89
    2 23.87

 # after

 $ ./lat_ctx -s 0 2

   "size=0k ovr=1.84
     2 1.49

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
include/linux/topology.h diff | blob | history
Linux kernel for KaRo TX COM modules