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| author | Rickard Green <[email protected]> | 2014-09-25 17:15:27 +0200 |
|---|---|---|
| committer | Rickard Green <[email protected]> | 2014-09-25 17:15:27 +0200 |
| commit | 3b972c26208c99282215766c3716ae23a1ac6214 (patch) | |
| tree | 89312b5b944dc3b69a89d1b6b77f6392d7097f21 /erts/doc/src/erl.xml | |
| parent | f4a57a8e94b9eb5f21adfd1c8da62429a3cb35c1 (diff) | |
| parent | 404c44d58058da8cfead5dd310fcb24bf3e8d344 (diff) | |
| download | otp-3b972c26208c99282215766c3716ae23a1ac6214.tar.gz otp-3b972c26208c99282215766c3716ae23a1ac6214.tar.bz2 otp-3b972c26208c99282215766c3716ae23a1ac6214.zip | |
Merge branch 'rickard/maint-17/eager-check-io/OTP-12117' into rickard/master/eager-check-io/OTP-12117
* rickard/maint-17/eager-check-io/OTP-12117:
No eager check I/O on OSE
Introduce support for eager check I/O scheduling
Conflicts:
erts/preloaded/ebin/erlang.beam
Diffstat (limited to 'erts/doc/src/erl.xml')
| -rw-r--r-- | erts/doc/src/erl.xml | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml index f856b9ab86..141754e4f9 100644 --- a/erts/doc/src/erl.xml +++ b/erts/doc/src/erl.xml @@ -1141,6 +1141,23 @@ <p>For more information, see <seealso marker="erlang#system_info_cpu_topology">erlang:system_info(cpu_topology)</seealso>.</p> </item> + <tag><marker id="+secio"><c>+secio true|false</c></marker></tag> + <item> + <p>Enable or disable eager check I/O scheduling. The default + is currently <c>false</c>, but will most likely be changed + to <c>true</c> in OTP 18. The behaviour before this flag + was introduced corresponds to <c>+secio false</c>.</p> + <p>The flag effects when schedulers will check for I/O + operations possible to execute, and when such I/O operations + will execute. As the name of the parameter implies, + schedulers will be more eager to check for I/O when + <c>true</c> is passed. This however also implies that + execution of outstanding I/O operation will not be + prioritized to the same extent as when <c>false</c> is + passed.</p> + <p><seealso marker="erlang#system_info_eager_check_io"><c>erlang:system_info(eager_check_io)</c></seealso> + returns the value of this parameter used when starting the VM.</p> + </item> <tag><marker id="+sfwi"><c>+sfwi Interval</c></marker></tag> <item> <p>Set scheduler forced wakeup interval. All run queues will |