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authorNick Piggin <nickpiggin@yahoo.com.au>2005-06-25 17:57:13 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-06-25 19:24:41 -0400
commit7897986bad8f6cd50d6149345aca7f6480f49464 (patch)
tree10a5e08e004ae685aaab6823a3774803455b7704 /include/linux/topology.h
parent99b61ccf0bf0e9a85823d39a5db6a1519caeb13d (diff)
[PATCH] sched: balance timers
Do CPU load averaging over a number of different intervals. Allow each interval to be chosen by sending a parameter to source_load and target_load. 0 is instantaneous, idx > 0 returns a decaying average with the most recent sample weighted at 2^(idx-1). To a maximum of 3 (could be easily increased). So generally a higher number will result in more conservative balancing. 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>
Diffstat (limited to 'include/linux/topology.h')
-rw-r--r--include/linux/topology.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/linux/topology.h b/include/linux/topology.h
index d70e8972c67f..ae9c2216dfa6 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -89,6 +89,10 @@
89 .cache_hot_time = 0, \ 89 .cache_hot_time = 0, \
90 .cache_nice_tries = 0, \ 90 .cache_nice_tries = 0, \
91 .per_cpu_gain = 25, \ 91 .per_cpu_gain = 25, \
92 .busy_idx = 0, \
93 .idle_idx = 0, \
94 .newidle_idx = 0, \
95 .wake_idx = 0, \
92 .flags = SD_LOAD_BALANCE \ 96 .flags = SD_LOAD_BALANCE \
93 | SD_BALANCE_NEWIDLE \ 97 | SD_BALANCE_NEWIDLE \
94 | SD_BALANCE_EXEC \ 98 | SD_BALANCE_EXEC \
@@ -115,6 +119,10 @@
115 .cache_hot_time = (5*1000000/2), \ 119 .cache_hot_time = (5*1000000/2), \
116 .cache_nice_tries = 1, \ 120 .cache_nice_tries = 1, \
117 .per_cpu_gain = 100, \ 121 .per_cpu_gain = 100, \
122 .busy_idx = 2, \
123 .idle_idx = 0, \
124 .newidle_idx = 1, \
125 .wake_idx = 1, \
118 .flags = SD_LOAD_BALANCE \ 126 .flags = SD_LOAD_BALANCE \
119 | SD_BALANCE_NEWIDLE \ 127 | SD_BALANCE_NEWIDLE \
120 | SD_BALANCE_EXEC \ 128 | SD_BALANCE_EXEC \