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

From: Aaron Tomlin

Date: Wed Aug 05 2026 - 16:19:39 EST


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