From: Johannes Weiner <hannes@cmpxchg.org>
To: Tao Cui <cui.tao@linux.dev>
Cc: Suren Baghdasaryan <surenb@google.com>,
linux-doc@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>,
Jonathan Corbet <corbet@lwn.net>, Tao Cui <cuitao@kylinos.cn>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] docs: accounting/psi: document /proc/pressure/irq and irq.pressure
Date: Thu, 23 Jul 2026 09:41:57 -0400 [thread overview]
Message-ID: <amIaJddflNFoIdUx@cmpxchg.org> (raw)
In-Reply-To: <20260723123654.456504-1-cui.tao@linux.dev>
On Thu, Jul 23, 2026 at 08:36:54PM +0800, Tao Cui wrote:
> From: Tao Cui <cuitao@kylinos.cn>
>
> psi.rst lists only cpu, memory and io, omitting the IRQ/SOFTIRQ pressure
> exposed as /proc/pressure/irq (and irq.pressure per cgroup) under
> CONFIG_IRQ_TIME_ACCOUNTING. admin-guide/cgroup-v2.rst already documents
> irq.pressure; bring psi.rst in line.
>
> IRQ pressure is tracked only for the "full" state: there is no "some"
> line, and writing a "some" trigger returns EINVAL.
>
> Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Looks good, thank you.
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
prev parent reply other threads:[~2026-07-23 13:42 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-23 12:36 [PATCH] docs: accounting/psi: document /proc/pressure/irq and irq.pressure Tao Cui
2026-07-23 13:41 ` Johannes Weiner [this message]
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