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Mon, 20 Jul 2026 08:26:49 -0700 (PDT) Received: from localhost.localdomain ([2001:af0:8000:1409:193:86:92:181]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4955de88951sm77982265e9.3.2026.07.20.08.26.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 20 Jul 2026 08:26:48 -0700 (PDT) Date: Mon, 20 Jul 2026 17:26:46 +0200 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: Tao Cui Cc: cgroups@vger.kernel.org, Tejun Heo , Johannes Weiner , Jonathan Corbet , Shuah Khan , Joshua Hahn , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, cuitao@kylinos.cn Subject: Re: [PATCH] cgroup/cpu: document cpu.stat nice_usec and core_sched.force_idle_usec Message-ID: References: <20260718080100.2334415-1-cui.tao@linux.dev> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="w2bwicfq2kh5elpa" Content-Disposition: inline In-Reply-To: <20260718080100.2334415-1-cui.tao@linux.dev> --w2bwicfq2kh5elpa Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Subject: Re: [PATCH] cgroup/cpu: document cpu.stat nice_usec and core_sched.force_idle_usec MIME-Version: 1.0 On Sat, Jul 18, 2026 at 04:01:00PM +0800, Tao Cui wrote: > From: Tao Cui >=20 > cgroup_base_stat_cputime_show() unconditionally prints a fourth base > stat, nice_usec, in addition to usage_usec/user_usec/system_usec, and > also prints core_sched.force_idle_usec when CONFIG_SCHED_CORE is enabled. > Neither field is currently described in the cpu.stat section of > cgroup-v2.rst, which still states it "always reports the following three > stats". Just to better sense popularity of the fields -- have you found this out by: a) reading cpu.stat and being confused about semantics of the fields or b) scanning files/code vs docs looking for discrepancies? Thanks, Michal --w2bwicfq2kh5elpa Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRCE24Fn/AcRjnLivR+PQLnlNv4CAUCal4+MhsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQfj0C55Tb+Ag3vwD9E1MC8njfG/ALqSIl0+J+ vDpXYoCVjiKaSM/c4p3+facBAM1HnJky1cQzDzCmTg5mmKUbPFXANmVUH42v2ac9 Y7MA =/WHZ -----END PGP SIGNATURE----- --w2bwicfq2kh5elpa--