From f48627e686a69f5215cb0761e731edb3d9859dd9 Mon Sep 17 00:00:00 2001 From: Jason Low Date: Fri, 13 Sep 2013 11:26:53 -0700 Subject: sched/balancing: Periodically decay max cost of idle balance This patch builds on patch 2 and periodically decays that max value to do idle balancing per sched domain by approximately 1% per second. Also decay the rq's max_idle_balance_cost value. Signed-off-by: Jason Low Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1379096813-3032-4-git-send-email-jason.low2@hp.com Signed-off-by: Ingo Molnar --- include/linux/topology.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/topology.h') diff --git a/include/linux/topology.h b/include/linux/topology.h index e2a2c3da2929..12ae6ce997d6 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -107,6 +107,7 @@ int arch_update_cpu_topology(void); .balance_interval = 1, \ .smt_gain = 1178, /* 15% */ \ .max_newidle_lb_cost = 0, \ + .next_decay_max_lb_cost = jiffies, \ } #endif #endif /* CONFIG_SCHED_SMT */ @@ -137,6 +138,7 @@ int arch_update_cpu_topology(void); .last_balance = jiffies, \ .balance_interval = 1, \ .max_newidle_lb_cost = 0, \ + .next_decay_max_lb_cost = jiffies, \ } #endif #endif /* CONFIG_SCHED_MC */ @@ -169,6 +171,7 @@ int arch_update_cpu_topology(void); .last_balance = jiffies, \ .balance_interval = 1, \ .max_newidle_lb_cost = 0, \ + .next_decay_max_lb_cost = jiffies, \ } #endif -- cgit v1.2.3