OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[PATCH] sched: less aggressive idle balancing 

Remove the special casing for idle CPU balancing.  Things like this are
hurting for example on SMT, where are single sibling being idle doesn't really
warrant a really aggressive pull over the NUMA domain, for example.

Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Nick Piggin 2005-06-25 14:57:12 -07:00 committed by Linus Torvalds
parent db935dbd43
commit 99b61ccf0b
1 changed files with 0 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
kernel/sched.c
View File

@ -1877,15 +1877,9 @@ nextgroup:
/* Get rid of the scaling factor, rounding down as we divide */
*imbalance = *imbalance / SCHED_LOAD_SCALE;
return busiest;
out_balanced:
if (busiest && (idle == NEWLY_IDLE ||
(idle == SCHED_IDLE && max_load > SCHED_LOAD_SCALE)) ) {
*imbalance = 1;
return busiest;
}
*imbalance = 0;
return NULL;