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| author | Mel Gorman <mgorman@suse.de> | 2021-05-12 12:40:35 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-05-18 12:53:53 +0200 |
| commit | fcb501704554eebfd27e3220b0540997fd2b24a8 (patch) | |
| tree | 2abe04ed72dff1f2dbe614620f5a6b6f6753d737 | |
| parent | 90a0ff4ec9c65cae3085d23301933172cea3f38a (diff) | |
| download | linux-fcb501704554eebfd27e3220b0540997fd2b24a8.tar.gz linux-fcb501704554eebfd27e3220b0540997fd2b24a8.tar.bz2 linux-fcb501704554eebfd27e3220b0540997fd2b24a8.zip | |
delayacct: Document task_delayacct sysctl
Update sysctl/kernel.rst.
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20210512114035.GH3672@suse.de
| -rw-r--r-- | Documentation/admin-guide/sysctl/kernel.rst | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst index 1d56a6b73a4e..ebd2f993d608 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 ================ |