The following commit has been merged into the sched/core branch of tip: Commit-ID: fcb501704554eebfd27e3220b0540997fd2b24a8 Gitweb: https://git.kernel.org/tip/fcb501704554eebfd27e3220b0540997fd2b24a8 Author: Mel Gorman <mgorman@xxxxxxx> AuthorDate: Wed, 12 May 2021 12:40:35 +01:00 Committer: Peter Zijlstra <peterz@xxxxxxxxxxxxx> CommitterDate: Tue, 18 May 2021 12:53:53 +02:00 delayacct: Document task_delayacct sysctl Update sysctl/kernel.rst. Signed-off-by: Mel Gorman <mgorman@xxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Link: https://lkml.kernel.org/r/20210512114035.GH3672@xxxxxxx --- Documentation/admin-guide/sysctl/kernel.rst | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst index 1d56a6b..ebd2f99 100644 --- a/Documentation/admin-guide/sysctl/kernel.rst +++ b/Documentation/admin-guide/sysctl/kernel.rst @@ -1087,6 +1087,13 @@ Model available). If your platform happens to meet the requirements for EAS but you do not want to use it, change this value to 0. +task_delayacct +=============== + +Enables/disables task delay accounting (see +:doc:`accounting/delay-accounting.rst`). Enabling this feature incurs +a small amount of overhead in the scheduler but is useful for debugging +and performance tuning. It is required by some tools such as iotop. sched_schedstats ================
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