Re: [PATCH 1/2] tools/sched_ext: Add missing -c option in scx_qmap help

From: Cheng-Yang Chou

Date: Wed Apr 15 2026 - 06:47:56 EST


Hi Zhao,

On Wed, Apr 15, 2026 at 05:54:17PM +0800, Zhao Mengmeng wrote:
> diff --git a/tools/sched_ext/scx_qmap.c b/tools/sched_ext/scx_qmap.c
> index e7c89a2bc3d8..b5fce6dcee14 100644
> --- a/tools/sched_ext/scx_qmap.c
> +++ b/tools/sched_ext/scx_qmap.c
> @@ -32,6 +32,7 @@ const char help_fmt[] =
> " -P Print out DSQ content and event counters to trace_pipe every second\n"
> " -M Print out debug messages to trace_pipe\n"
> " -H Boost nice -20 tasks in SHARED_DSQ, use with -b\n"
> +" -c CG_PATH Cgroup path to attach as sub-scheduler, must run parent scheduler first\n"
> " -d PID Disallow a process from switching into SCHED_EXT (-1 for self)\n"
> " -D LEN Set scx_exit_info.dump buffer length\n"
> " -S Suppress qmap-specific debug dump\n"

Could you also add [-c CG_PATH] to the usage synopsis in help_fmt?
Thanks!

Reviewed-by: Cheng-Yang Chou <yphbchou0911@xxxxxxxxx>

--
Thanks,
Cheng-Yang