lkml.org 
[lkml]   [2017]   [Sep]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 2/2] tracing: Add support for critical section events
On Sun, Sep 03, 2017 at 01:50:51AM -0700, Joel Fernandes wrote:
> Critical section trace events can be used for tracing the start and
> end of a critical section which can be used by a trace viewer like
> systrace to graphically view the start and end of a critical section and
> correlate them with latencies and scheduling issues.
>
> Reason for starting critical section:
> Either preemption or interrupts were turned off.
> Reason for ending critical section:
> Both preemption and interrupts are now turned back on.

Please don't use the name critical section for this. Also IRQ and
preempt already have a gazillion trace hooks, why do we need more?

\
 
 \ /
  Last update: 2017-09-04 09:57    [W:0.243 / U:0.232 seconds]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site