Re: [PATCH v7 0/4] perf sched latency: Refine outputs, unit scaling, and histogram support

Aaron Tomlin <[email protected]> Wed, 5 Aug 2026 16:19:27 -0400

Newsgroups	org.kernel.vger.linux-perf-users,org.kernel.vger.linux-kernel
Message-ID	<iz6rvkfqqcdydi7fuko7rgc7qdzhy62iolqyw6d2bvrk7t6xtd@rnyjymbgxflh>

On Tue, Aug 04, 2026 at 10:11:23AM -0700, Namhyung Kim wrote:
> > Patch 4 adds three new command-line options to 'perf sched latency':
> >     --histogram (-H):
> >             Displays an ASCII bar chart of CPU wait latencies between
> >             snapshots
> >     --hist-mode:
> >             Configures the bucketing scheme to either logarithmic (log) or
> >             100 us equal-width linear (linear) mode
> >     --time:
> >             Filters trace event processing to a specified [start,stop] time
> >             span
> 
> Can you please also add a test case to check the basic functionality?
> 
Hi Namhyung,

Absolutely!


Kind regards,
-- 
Aaron Tomlin