mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-01 06:33:07 +00:00
7414db4119
Link: https://lkml.kernel.org/r/YhZsZxqk+IaFxorj@kernel.org
Fixes: 496082df01 ("rtla: Add rtla osnoise man page")
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Daniel Bristot de Oliveira <bristot@kernel.org>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
8 lines
518 B
ReStructuredText
8 lines
518 B
ReStructuredText
The **rtla osnoise** tool is an interface for the *osnoise* tracer. The
|
|
*osnoise* tracer dispatches a kernel thread per-cpu. These threads read the
|
|
time in a loop while with preemption, softirq and IRQs enabled, thus
|
|
allowing all the sources of operating system noise during its execution.
|
|
The *osnoise*'s tracer threads take note of the delta between each time
|
|
read, along with an interference counter of all sources of interference.
|
|
At the end of each period, the *osnoise* tracer displays a summary of
|
|
the results.
|