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Thu, 15 Aug 2024 15:21:23 -0700 (PDT) Received: from able.exile.i.intelfx.name ([109.172.181.47]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-429ed4a857bsm5891885e9.0.2024.08.15.15.21.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Aug 2024 15:21:23 -0700 (PDT) Message-ID: <3df4acd616a07ef4d2dc6bad668701504b412ffc.camel@intelfx.name> Subject: Re: 6.10/regression/bisected - after f1d97e769152 I spotted increased execution time of the kswapd0 process and symptoms as if there is not enough memory From: intelfx@intelfx.name To: Filipe Manana , Jannik =?ISO-8859-1?Q?Gl=FCckert?= Cc: andrea.gelmini@gmail.com, dsterba@suse.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-kernel@vger.kernel.org, mikhail.v.gavrilov@gmail.com, regressions@lists.linux.dev Date: Fri, 16 Aug 2024 00:21:20 +0200 In-Reply-To: References: <277314c9-c4aa-4966-9fbe-c5c42feed7ef@gmail.com> Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-N9kYIbgMAIJwZYJIoizC" User-Agent: Evolution 3.52.4 Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 --=-N9kYIbgMAIJwZYJIoizC Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On 2024-08-11 at 16:33 +0100, Filipe Manana wrote: > <...> > This came to my attention a couple days ago in a bugzilla report here: >=20 > https://bugzilla.kernel.org/show_bug.cgi?id=3D219121 >=20 > There's also 2 other recent threads in the mailing about it. >=20 > There's a fix there in the bugzilla, and I've just sent it to the mailing= list. > In case you want to try it: >=20 > https://lore.kernel.org/linux-btrfs/d85d72b968a1f7b8538c581eeb8f5baa973df= c95.1723377230.git.fdmanana@suse.com/ >=20 > Thanks. Hello, I confirm that excessive "system" CPU usage by kswapd and btrfs-cleaner kernel threads is still happening on the latest 6.10 stable with all quoted patches applied, making the system close to unusable (not to mention excessive power usage which crosses the line well *into* "unusable" for low-power systems such as laptops). With just 5 minutes of uptime on a freshly booted 6.10.5 system, the cumulative CPU time of kswapd is already at 2 minutes. Regards, -- Ivan Shapovalov / intelfx / --=-N9kYIbgMAIJwZYJIoizC Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEE5N8nvImcx2nJlFGce94XyOTjDp0FAma+f2AVHGludGVsZnhA aW50ZWxmeC5uYW1lAAoJEHveF8jk4w6dliYP/3SLMKaoIMi8wNJiZRY/ENITiwSe toZK1Q70t6onLZcxpjJ+5HqlAuTWyufHx5+o18oqlSgLSWDM8U0fzWJlcooeoQtq okW1aiU49gLaHjpP8W0dJO/3ECMZkZ3LMv79qK5xiirAUMuQcs/Q9FBHZlKyF5rB jW+Abg4ShIm453X6mVYJUYgouigTNQwMTSIriagtd3pOGQ8pTyXAoJT4JLhGrvhk 1oABDcKa/y28ryjP0KznEjOPi5EEi/7c4UQZ/dxuIc88lAQdTu8bBFTtNvoEU4sO LOMFOOjVt/4tIskK56VSHKC/V+u2mDuab6WE+uN6QCHKj4KJoJb4JMgIA7xM/MPX 81fMnc+2EYHaYP9Kx1RIU71uTxRkE/W9tAU+s9WOG3jiGXMsS3d2Z8pkGUkyoW6H 2Nv8q1T249rVduFAL4jV7M7zfWQ4mt8uNz+KI1hV8eblZXFBLHZ/MfJiCKhXeVcn Jnc/+4bU052iEyzGsoERZnrs6qptexrWWHPap1BOB8gpAQq8/YS/y1A5xQheoDS4 AvRIWr04xMNhpMLQAeKwzwr03Pn3jFL7U2kXYVNJjU44A2DBhZsHA+HLgJhkQTvE Ez5pOrkx3GQf50T3L38bheQdRDGZVojNyoNdSYdcS++jxauHGtoI2MqmGLryMc7V NReL9QhNRCUKP/sf =yxbx -----END PGP SIGNATURE----- --=-N9kYIbgMAIJwZYJIoizC--