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authorRickard Green <rickard@erlang.org>2011-11-09 17:21:20 +0100
committerRickard Green <rickard@erlang.org>2011-11-15 10:33:08 +0100
commitac7dcc23af68ef5a01ce5ca03ad485595bf5e18b (patch)
tree1f047312e72b3ba05b30b621cb9595091d3a7ad9 /erts/doc/src/erl.xml
parentd328f453e7cd6e24856b0c80e0b8c4ed6def5461 (diff)
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Add switch that can disable scheduler compaction of load
Diffstat (limited to 'erts/doc/src/erl.xml')
-rw-r--r--erts/doc/src/erl.xml13
1 files changed, 13 insertions, 0 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml
index 514ee5ffaf..50f90ec9df 100644
--- a/erts/doc/src/erl.xml
+++ b/erts/doc/src/erl.xml
@@ -738,6 +738,19 @@
<seealso marker="erlang#system_flag_scheduler_bind_type">erlang:system_flag(scheduler_bind_type, SchedulerBindType)</seealso>.
</p>
</item>
+ <tag><marker id="+scl"><c>+scl true|false</c></marker></tag>
+ <item>
+ <p>Enable or disable scheduler compaction of load. By default
+ scheduler compaction of load is enabled. When enabled, load
+ balancing will strive for a load distribution which causes
+ as many scheduler threads as possible to be fully loaded (i.e.,
+ not run out of work). This is accomplished by migrating load
+ (e.g. runnable processes) into a smaller set of schedulers
+ when schedulers frequently run out of work. When disabled,
+ the frequency with which schedulers run out of work will
+ not be taken into account by the load balancing logic.
+ </p>
+ </item>
<tag><marker id="+sct"><c>+sct CpuTopology</c></marker></tag>
<item>
<list type="bulleted">