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Fri, 24 Jul 2026 04:21:48 -0700 (PDT) Date: Fri, 24 Jul 2026 13:21:46 +0200 From: Michal =?utf-8?Q?Koutn=C3=BD?= To: Shaojie Sun Cc: tj@kernel.org, skhan@linuxfoundation.org, hannes@cmpxchg.org, corbet@lwn.net, cgroups@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] Docs/admin-guide/cgroup-v2: document hierarchical cpu.max throttling behavior Message-ID: References: <20260724102500.276525-1-sunshaojie@kylinos.cn> 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="eeashxwvkr36aub6" Content-Disposition: inline In-Reply-To: <20260724102500.276525-1-sunshaojie@kylinos.cn> --eeashxwvkr36aub6 Content-Type: text/plain; protected-headers=v1; charset=us-ascii Content-Disposition: inline Subject: Re: [PATCH] Docs/admin-guide/cgroup-v2: document hierarchical cpu.max throttling behavior MIME-Version: 1.0 Hi. On Fri, Jul 24, 2026 at 06:25:00PM +0800, Shaojie Sun wrote: > diff --git a/Documentation/admin-guide/cgroup-v2.rst b/Documentation/admin-guide/cgroup-v2.rst > index 14b8c571c0d1..3572d3e7f688 100644 > --- a/Documentation/admin-guide/cgroup-v2.rst > +++ b/Documentation/admin-guide/cgroup-v2.rst > + and the resulting > + throttling may reflect the combined effect of multiple levels > + rather than any single level's limit alone (this differs from > + other Limits-type controllers such as memory.max and io.max, > + where the most restrictive limit along the hierarchy is > + applied). I'm not sure from the description what the "combined effect" is. Can you give an example where the cpu.max differs from that Limits-type semantics? Thanks, Michal --eeashxwvkr36aub6 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRCE24Fn/AcRjnLivR+PQLnlNv4CAUCamNKxhsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQfj0C55Tb+Ahs0AD9E2MJd6AyaFbuNaCfPXmW S6gY1qooua7uU6SnpxVthncA/RwC5B6BM4buZiOSDvt0gD85O1/7fNIv0yv0Erkc JIsD =wpPc -----END PGP SIGNATURE----- --eeashxwvkr36aub6--