diff options
Diffstat (limited to 'erts/doc/src/erlang.xml')
| -rw-r--r-- | erts/doc/src/erlang.xml | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml index 239cc63f71..8c438b0bd7 100644 --- a/erts/doc/src/erlang.xml +++ b/erts/doc/src/erlang.xml @@ -4952,7 +4952,7 @@ true</pre> <tag><marker id="statistics_scheduler_wall_time"><c>scheduler_wall_time</c></marker></tag> <item> <p>Returns a list of tuples with - <c>{SchedulerId, ActiveTime, TotalTime}]</c>, where <c>SchedulerId</c> is an integer id of the scheduler, <c>ActiveTime</c> is + <c>{SchedulerId, ActiveTime, TotalTime}</c>, where <c>SchedulerId</c> is an integer id of the scheduler, <c>ActiveTime</c> is the duration the scheduler has been busy, <c>TotalTime</c> is the total time duration since <seealso marker="#system_flag_scheduler_wall_time">scheduler_wall_time</seealso> activation. The time unit is not defined and may be subject to change @@ -4965,7 +4965,9 @@ true</pre> scheduling (selecting) a process or port, meaning; executing process code, executing linked-in-driver or NIF code, executing built-in-functions or any other runtime handling, garbage collecting - or handling any other memory management. + or handling any other memory management. Note, a scheduler may also be + busy even if the operating system has scheduled out the scheduler + thread. </p> <p> @@ -4973,7 +4975,7 @@ true</pre> scheduler_wall_time</seealso> is turned off. </p> - <p>The list of scheduler information is unsorted and may come in different order + <p>The list of scheduler information is unsorted and may appear in different order between calls. </p> <p>Using <c>scheduler_wall_time</c> to calculate scheduler utilization.</p> |