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sched: fine-tune SD_SIBLING_INIT
authorIngo Molnar <mingo@elte.hu>
Fri, 7 Nov 2008 15:09:23 +0000 (16:09 +0100)
committerIngo Molnar <mingo@elte.hu>
Fri, 7 Nov 2008 15:09:23 +0000 (16:09 +0100)
commit52c642f33b14bfa1b00ef2b68296effb34a573f3
tree508a49591138e91733ad228ae6a367d91b318b39tree | snapshot
parent14800984706bf6936bbec5187f736e928be5c218commit | diff
sched: fine-tune SD_SIBLING_INIT

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>
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