From 95dbb421d12fdd9796ed153853daf3679809274f Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 15 Oct 2007 17:00:19 +0200 Subject: sched: reintroduce topology.h tunings reintroduce the 2.6.22 topology.h tunings again - they result in slightly better balancing. Signed-off-by: Ingo Molnar --- include/linux/topology.h | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) (limited to 'include/linux/topology.h') diff --git a/include/linux/topology.h b/include/linux/topology.h index 525d437b1253..865a63e65578 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 = 0, \ + .newidle_idx = 1, \ .wake_idx = 0, \ .forkexec_idx = 0, \ .flags = SD_LOAD_BALANCE \ @@ -128,15 +128,14 @@ .imbalance_pct = 125, \ .cache_nice_tries = 1, \ .busy_idx = 2, \ - .idle_idx = 0, \ - .newidle_idx = 0, \ + .idle_idx = 1, \ + .newidle_idx = 2, \ .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, \ @@ -159,15 +158,14 @@ .imbalance_pct = 125, \ .cache_nice_tries = 1, \ .busy_idx = 2, \ - .idle_idx = 0, \ - .newidle_idx = 0, \ + .idle_idx = 1, \ + .newidle_idx = 2, \ .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, \ -- cgit v1.2.2 From 7a6c6bcee029a978f866511d6e41dbc7301fde4c Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 15 Oct 2007 17:00:19 +0200 Subject: sched: enable wake-idle on CONFIG_SCHED_MC=y most multicore CPUs today have shared L2 caches, so tune things so that the spreading amongst cores is more aggressive. Signed-off-by: Ingo Molnar --- include/linux/topology.h | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) (limited to 'include/linux/topology.h') diff --git a/include/linux/topology.h b/include/linux/topology.h index 865a63e65578..47729f18bfdf 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, \ -- cgit v1.2.2