From: Tejun Heo <tj@kernel.org>
To: Tao Cui <cui.tao@linux.dev>
Cc: David Vernet <void@manifault.com>,
sched-ext@lists.linux.dev, Andrea Righi <arighi@nvidia.com>,
linux-kernel@vger.kernel.org, Changwoo Min <changwoo@igalia.com>
Subject: Re: [REPORT] sched_ext: sub-scheduler tasks are severely under-scheduled vs root-owned tasks
Date: Wed, 07 Oct 2026 23:10:13 -1000 [thread overview]
Message-ID: <68208eef89abff9423de730ef585327f@kernel.org> (raw)
In-Reply-To: <163e2397-0e3e-4cc0-842b-0d36598d13d7@linux.dev>
Hello, Tao.
On Thu, Oct 08, 2026 at 04:36:49PM +0800, Tao Cui wrote:
> A pair of minimal cid-form test
> schedulers: a parent that grants SCX_CAP_PERF | SCX_CAP_ENQ_IMMED over
> a cgroup to a child, and the child writing cpuperf target 1 from
> ops.tick().
Can you explain exactly what you tested and how, including the scheduler
source and complete reproduction steps? This isn't a useful bug report
without that information.
Thanks.
--
tejun
next prev parent reply other threads:[~2026-10-08 9:10 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-08 8:36 [REPORT] sched_ext: sub-scheduler tasks are severely under-scheduled vs root-owned tasks Tao Cui
2026-10-08 9:10 ` Tejun Heo [this message]
2026-10-09 1:51 ` Tao Cui
2026-10-09 23:42 ` Tejun Heo
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