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Yevaud: Experimentally tune kernel job sched
author
Grant Slater
<git@firefishy.com>
Mon, 23 Mar 2015 18:43:16 +0000
(18:43 +0000)
committer
Grant Slater
<git@firefishy.com>
Mon, 23 Mar 2015 18:43:16 +0000
(18:43 +0000)
roles/yevaud.rb
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diff --git
a/roles/yevaud.rb
b/roles/yevaud.rb
index ebcd86ad160c4d5e8ef70286c79d7aecb04ebaa0..6d33455e4049bec525730c825b3c44e3674fc806 100644
(file)
--- a/
roles/yevaud.rb
+++ b/
roles/yevaud.rb
@@
-88,6
+88,13
@@
default_attributes(
"kernel.shmmax" => 4 * 1024 * 1024 * 1024,
"kernel.shmall" => 4 * 1024 * 1024 * 1024 / 4096
}
+ },
+ :cpu_tune => {
+ :comment => "Tune kern sched migration cost",
+ :parameters => {
+ "kernel.sched_autogroup_enabled" => 0,
+ "kernel.sched_migration_cost_ns" => 25000000
+ }
}
},
:tile => {