diff options
| author | Peter Zijlstra <[email protected]> | 2009-10-09 12:16:40 +0200 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2009-10-14 15:02:34 +0200 |
| commit | 799e2205ec65e174f752b558c62a92c4752df313 (patch) | |
| tree | dc2438771be941b485f0da12a1ff177f0797e57b /include/linux | |
| parent | e17b38bf9e70d74f3739a600db75240078ac1407 (diff) | |
sched: Disable SD_PREFER_LOCAL for MC/CPU domains
Yanmin reported that both tbench and hackbench were significantly
hurt by trying to keep tasks local on these domains, esp on small
cache machines.
So disable it in order to promote spreading outside of the cache
domains.
Reported-by: "Zhang, Yanmin" <[email protected]>
Signed-off-by: Peter Zijlstra <[email protected]>
CC: Mike Galbraith <[email protected]>
LKML-Reference: <1255083400.8802.15.camel@laptop>
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/topology.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/topology.h b/include/linux/topology.h index fc0bf3edeb67..57e63579bfdd 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -129,7 +129,7 @@ int arch_update_cpu_topology(void); | 1*SD_BALANCE_FORK \ | 0*SD_BALANCE_WAKE \ | 1*SD_WAKE_AFFINE \ - | 1*SD_PREFER_LOCAL \ + | 0*SD_PREFER_LOCAL \ | 0*SD_SHARE_CPUPOWER \ | 1*SD_SHARE_PKG_RESOURCES \ | 0*SD_SERIALIZE \ @@ -162,7 +162,7 @@ int arch_update_cpu_topology(void); | 1*SD_BALANCE_FORK \ | 0*SD_BALANCE_WAKE \ | 1*SD_WAKE_AFFINE \ - | 1*SD_PREFER_LOCAL \ + | 0*SD_PREFER_LOCAL \ | 0*SD_SHARE_CPUPOWER \ | 0*SD_SHARE_PKG_RESOURCES \ | 0*SD_SERIALIZE \ |