From: Ingo Molnar Date: Mon, 9 Jul 2007 16:52:01 +0000 (+0200) Subject: sched: more agressive idle balancing X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=9c4801cebc2add1fe514bc8eb201b16372eee11a;p=deliverable%2Flinux.git sched: more agressive idle balancing the Linux scheduler is starving a number of workloads. So default to more agressive idle-balancing. This hurts lmbench context-switching numbers (which was the main reason we sucked at idle-balancing for such a long time) but the lmbench numbers are fine once the system is minimally utilized. Signed-off-by: Ingo Molnar --- diff --git a/include/linux/topology.h b/include/linux/topology.h index a9d1f049cc15..da6c39b2d051 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -98,7 +98,7 @@ .cache_nice_tries = 0, \ .busy_idx = 0, \ .idle_idx = 0, \ - .newidle_idx = 1, \ + .newidle_idx = 0, \ .wake_idx = 0, \ .forkexec_idx = 0, \ .flags = SD_LOAD_BALANCE \ @@ -128,14 +128,15 @@ .imbalance_pct = 125, \ .cache_nice_tries = 1, \ .busy_idx = 2, \ - .idle_idx = 1, \ - .newidle_idx = 2, \ + .idle_idx = 0, \ + .newidle_idx = 0, \ .wake_idx = 1, \ .forkexec_idx = 1, \ .flags = SD_LOAD_BALANCE \ | SD_BALANCE_NEWIDLE \ | SD_BALANCE_EXEC \ | SD_WAKE_AFFINE \ + | SD_WAKE_IDLE \ | SD_SHARE_PKG_RESOURCES\ | BALANCE_FOR_MC_POWER, \ .last_balance = jiffies, \ @@ -158,14 +159,15 @@ .imbalance_pct = 125, \ .cache_nice_tries = 1, \ .busy_idx = 2, \ - .idle_idx = 1, \ - .newidle_idx = 2, \ + .idle_idx = 0, \ + .newidle_idx = 0, \ .wake_idx = 1, \ .forkexec_idx = 1, \ .flags = SD_LOAD_BALANCE \ | SD_BALANCE_NEWIDLE \ | SD_BALANCE_EXEC \ | SD_WAKE_AFFINE \ + | SD_WAKE_IDLE \ | BALANCE_FOR_PKG_POWER,\ .last_balance = jiffies, \ .balance_interval = 1, \