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| author | Rickard Green <[email protected]> | 2010-09-04 00:18:45 +0200 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2010-09-04 00:29:53 +0200 |
| commit | d8e862b5b4a354bdeee2d2b4d6d46024d4aabb0e (patch) | |
| tree | 5573684db6aec82d59af13239e16461f4c61303d /erts/doc/src/erl.xml | |
| parent | 14b1091a4b09e5626aaa63e9d1ea60e829fc829b (diff) | |
| download | otp-d8e862b5b4a354bdeee2d2b4d6d46024d4aabb0e.tar.gz otp-d8e862b5b4a354bdeee2d2b4d6d46024d4aabb0e.tar.bz2 otp-d8e862b5b4a354bdeee2d2b4d6d46024d4aabb0e.zip | |
Add scheduler wakup threshold as command line argument
The scheduler wakeup threshold is now possible to adjust at system boot.
For more information see the `+swt' command line argument of `erl'.
Diffstat (limited to 'erts/doc/src/erl.xml')
| -rw-r--r-- | erts/doc/src/erl.xml | 26 |
1 files changed, 20 insertions, 6 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml index f477280a6f..e36d0adb0d 100644 --- a/erts/doc/src/erl.xml +++ b/erts/doc/src/erl.xml @@ -831,14 +831,28 @@ <p>For more information, see <seealso marker="erlang#system_flag_cpu_topology">erlang:system_flag(cpu_topology, CpuTopology)</seealso>.</p> </item> + <tag><marker id="+swt"><c>+swt very_low|low|medium|high|very_high</c></marker></tag> + <item> + <p>Set scheduler wakeup threshold. Default is <c>medium</c>. + The threshold determines when to wake up sleeping schedulers + when more work than can be handled by currently awake schedulers + exist. A low threshold will cause earlier wakeups, and a high + threshold will cause later wakeups. Early wakeups will + distribute work over multiple schedulers faster, but work will + more easily bounce between schedulers. + </p> + <p><em>NOTE:</em> This flag may be removed or changed at any time + without prior notice. + </p> + </item> + <tag><marker id="sched_thread_stack_size"><c><![CDATA[+sss size]]></c></marker></tag> + <item> + <p>Suggested stack size, in kilowords, for scheduler threads. + Valid range is 4-8192 kilowords. The default stack size + is OS dependent.</p> + </item> </taglist> </item> - <tag><marker id="sched_thread_stack_size"><c><![CDATA[+sss size]]></c></marker></tag> - <item> - <p>Suggested stack size, in kilowords, for scheduler threads. - Valid range is 4-8192 kilowords. The default stack size - is OS dependent.</p> - </item> <tag><marker id="+t"><c><![CDATA[+t size]]></c></marker></tag> <item> <p>Set the maximum number of atoms the VM can handle. Default is 1048576.</p> |