Messages in this thread | | | Date | Wed, 21 Feb 2024 16:43:34 -0500 | From | Steven Rostedt <> | Subject | Re: [PATCH 29/30] Documentation: tracing: add TIF_NEED_RESCHED_LAZY |
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On Mon, 12 Feb 2024 21:55:53 -0800 Ankur Arora <ankur.a.arora@oracle.com> wrote:
> Document various combinations of resched flags. > > Cc: Steven Rostedt <rostedt@goodmis.org> > Cc: Masami Hiramatsu <mhiramat@kernel.org> > Cc: Jonathan Corbet <corbet@lwn.net> > Originally-by: Thomas Gleixner <tglx@linutronix.de> > Link: https://lore.kernel.org/lkml/87jzshhexi.ffs@tglx/ > Signed-off-by: Ankur Arora <ankur.a.arora@oracle.com> > --- > Documentation/trace/ftrace.rst | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/Documentation/trace/ftrace.rst b/Documentation/trace/ftrace.rst > index 7e7b8ec17934..7f20c0bae009 100644 > --- a/Documentation/trace/ftrace.rst > +++ b/Documentation/trace/ftrace.rst > @@ -1036,8 +1036,12 @@ explains which is which. > be printed here. > > need-resched: > - - 'N' both TIF_NEED_RESCHED and PREEMPT_NEED_RESCHED is set, > + - 'B' all three, TIF_NEED_RESCHED, TIF_NEED_RESCHED_LAZY and PREEMPT_NEED_RESCHED are set, > + - 'N' both TIF_NEED_RESCHED and PREEMPT_NEED_RESCHED are set, > + - 'L' both TIF_NEED_RESCHED_LAZY and PREEMPT_NEED_RESCHED are set, > + - 'b' both TIF_NEED_RESCHED and TIF_NEED_RESCHED_LAZY are set, > - 'n' only TIF_NEED_RESCHED is set, > + - 'l' only TIF_NEED_RESCHED_LAZY is set, > - 'p' only PREEMPT_NEED_RESCHED is set, > - '.' otherwise. >
I wonder if we should also add this information in /sys/kernel/tracing/README so that it is easier to find on a machine.
-- Steve
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