From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=209.85.218.41 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792434301; b=XNtkd1AzxEyMo/wOnY3WAAK3MeYiE3rymaNmwAm9xNCbImrH1yWJelmfNjln2gU4iCYa cL+l3CjLs/pBc6sw9C0k8KG+wxpd34varfChaz82WhP7QUOC28cyf3VZfJ3FP3Aj4dOFI cumFHQIhL26uq79mZygaswZ2sBKBsmp0uRLyOT06WFqL5OElsa6bQ/tQzihPhPPa/xPLK 7kYDQTryKtXhzDbjAx8Ulvxfe9HN4ogm0W5Hdg0Cu6cyv4D0UqaXO1Gazr4o/+kDRYCKi lwyXJ11TjJZT/l7PRUUMOOOcw3qAt09UqBcWVaxUlOVs8GRSUJSwCXDX0hXWcIPfWIA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792434301; h=DMARC-Filter:Received:DKIM-Signature:X-Google-DKIM-Signature: X-Forwarded-Encrypted:X-Gm-Message-State:X-Gm-Gg:X-Received:Received: Message-ID:Date:MIME-Version:User-Agent:Subject:To:Cc:References: Content-Language:From:In-Reply-To:Content-Type: Content-Transfer-Encoding; bh=jtPccQqJ2uVD863ndD5Pql7lUKykf7N9xt+2EMl4boQ=; b=1L7RlkmnlKk1Qn1BdRQFLDRx8n1B3U3d58AIub5/fHbVU7jPjTC47eVoXobzItj0D/ET qu1LKXkS1DEU/eCj0BPaVl6hPuGNdYqth2WogZFNjKtABcRdq4hrK1yWPgm6sdQHudOSW 0dMPNDuqJ3JmqABFDmrvjLfVB6DneV52lmH78U+He5s3snzBMlgPLeOn7vMG2Bb+ukyt8 RQSEmG+0RLCFnQCfh+1tqKvvUfRiZzzzv1tUY2d7kKKVJdy4ay0nXL9biGc35c9pCcs2h OmTgsjCCM4Q0uj26FRHseYFSWS0VjYJxgJ209tBYJ/crc1/z+HdEYnIJtu4nTk/HHXw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=okonski.org; spf=none smtp.mailfrom=okonski.org; dkim=pass header.d=okonski-org.20251104.gappssmtp.com header.i=@okonski-org.20251104.gappssmtp.com header.a=rsa-sha256 header.s=20251104 header.b=X4UC2tzT; arc=none smtp.remote-ip=209.85.218.41 Received: from mail-ej1-f41.google.com (mail-ej1-f41.google.com [209.85.218.41]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 22D4D606A319 for ; Mon, 19 Oct 2026 18:25:00 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 22D4D606A319 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=okonski.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=okonski.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=okonski-org.20251104.gappssmtp.com header.i=@okonski-org.20251104.gappssmtp.com header.a=rsa-sha256 header.s=20251104 header.b=X4UC2tzT Received: by mail-ej1-f41.google.com with SMTP id a640c23a62f3a-c247f6687dcso181435966b.2 for ; Mon, 19 Oct 2026 11:25:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=okonski-org.20251104.gappssmtp.com; s=20251104; t=1792434299; x=1793039099; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:from:to:cc:subject:date:message-id:reply-to :content-type; bh=jtPccQqJ2uVD863ndD5Pql7lUKykf7N9xt+2EMl4boQ=; b=X4UC2tzTUDZMrZcRbRquqMSyNAEOAKxUZtciQ+klss0scatPZpmv25j24B9UxdZEd/ xE62JUeiUGNFiVcWffAloXMa0JMZr+o8SsYSLbmCAVGPl8DFTqvqeUbompo6CKj2nMEd oVgiaPNxN27Sjag2nS8ZbA8JGhC+/GdREmTUpnpubIMCtnx7EiDY0aeTRjl0mc1Gyc0d GfpPgSxGEPBQatqNabT0jsPj7Myzvg1n7aECT4hFEmF1PHdrj1jxPY0i/HsngGe1exd3 8NemxlzCAzGve5Olrt3xFbOQtq9/jyuRFJUcKqGvCRtwq6juCC1lfQ5/Ea78iNT+4cSj 48/w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1792434299; x=1793039099; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:cc:to:subject:user-agent:mime-version :date:message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=jtPccQqJ2uVD863ndD5Pql7lUKykf7N9xt+2EMl4boQ=; b=AL/r/G+OMgP/l9q/16xGtLTgpnz7VmeMMemcX2MDHx4+CT9V4p+Hm/vaz6orVYYsPC Q4oV1+we5yLGu9uiVK8Hi8H453TxQkBxt7PRDme2z3xeS3ybovxnCqaaUnE9j9Mw3Sp1 DD35Ssy4Y/lIJUKTdBa8jFs7bwZRLYy2DTGvCJ1AT9pOzDFhoWQHu/ALa8DKADoXI7G5 HdHmJR5gAQtE6mP2YMp7dChTzzft+zBTavgkWnjV++9KVQRW8Ox1YxHbibTtnVJcYuke jjjCU5YknHdZDKXarPVcx0ID8NWl2VILuDYWK32F6Jicf54vYfDy4pBO2y6cIFA9+0aG R+XA== X-Forwarded-Encrypted: i=1; AKwUvBzk9lZxjofrT0FDcr9DjDsqMdOGzbwuljjtWssZPWg/23Ce2pV/P2Oqq7JSXGazuKk9r0Nk4o/0Ob+bHKU=@vger.kernel.org X-Gm-Message-State: AFq9FYLS9jflca3lPbMkuNeYOgS6w+938k1AmSFkGUCVt53YB1xNQEhU paajTBOqxyDQph9B/dCr2nWEYEf5+l+DK0TOLr5krLiofinczSoH5zzfe/qDgfpHrHI= X-Gm-Gg: AYBFou19U5V9O0yPPKIe+ShUJpBs5wTrFI3ktnXNtxs1DCLATaS6R3w625aTrIzDRAy 9FXLRy3ZN0oGBvRJMAovriyefpjWIfZiU8MVpC/+/4mM+aQr8JZSDvcHtwMU9+FPCNQ1ml0p5nw PyC/vxAaOAhvmwDNV+9PVQzR5VO61oYjDF1Foisc0o9FNpoKKL2Bpw3T3w4WEbA/kTR86qiuddH H+vuQcgTNcF/5yHOzajK0mD6LiKFql/Qft+E4ucbarveK4iYEjX1cj1xa2kUlkKvCu4k+DtkMzy IKNiiGdayMB8qOsR4+s2RAGDrbWWo0m9jPbErnZvajoACBW+NpSLRS51kHwCUkzl3s97BoN4Wxj eKel2DbQCVzE6wVhDGYZOEw5O37QR7pX+RnSpjEK+yceQJiR3DDMMX8JvzhfdlS7fiIbMY2oz5y +Pqwx2s2XQk3oqbzLEOFm6tDhFWKDbSZErsvNMoR9yTRKZuIInT5oELV1JSBOWeQcImCcduVfGp MYORQ6NTgw3N0Hi8+byFNTOTlE0g3gnUP1EiTrPmTXmbEo8aNmEyq0qU630zGyjd87wmbIHEq7g Tbay7Mv4B47HOXq8fkq4SIAFV7TxcPopZ2r4KUrcQHY= X-Received: by 2002:a17:907:b046:20b0:c42:102f:15d7 with SMTP id a640c23a62f3a-c42102f36d2mr336567366b.10.1792434299287; Mon, 19 Oct 2026 11:24:59 -0700 (PDT) Received: from ?IPV6:2a02:21a0:10:748:1::2? ([2a02:21a0:10:748:1::2]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c40919bc147sm388919966b.50.2026.10.19.11.24.57 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 19 Oct 2026 11:24:58 -0700 (PDT) Message-ID: <01e25832-955c-4f39-a902-6cc253a2791c@okonski.org> Date: Mon, 19 Oct 2026 20:24:57 +0200 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 7/7] sched/eevdf: Move to a single runqueue To: Vincent Guittot Cc: Mike Galbraith , Peter Zijlstra , mingo@kernel.org, longman@redhat.com, chenridong@huaweicloud.com, juri.lelli@redhat.com, dietmar.eggemann@arm.com, rostedt@goodmis.org, bsegall@google.com, mgorman@suse.de, vschneid@redhat.com, tj@kernel.org, hannes@cmpxchg.org, mkoutny@suse.com, cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, jstultz@google.com, kprateek.nayak@amd.com, qyousef@layalina.io References: <20260605105513.354837583@infradead.org> <20260605124052.227463677@infradead.org> <58dc8e8a-7260-43ce-aebb-8d9c29a6afc9@okonski.org> Content-Language: en-US From: =?UTF-8?Q?Jakub_Oko=C5=84ski?= In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit On 10/19/26 20:04, Vincent Guittot wrote: > On Mon, 19 Oct 2026 at 19:36, Jakub OkoĊ„ski wrote: >> >> top of 7.3.0, it still regresses from 7.2.9 if you test with a nice 19 >> spinner in the same cgroup. I think it's incomplete. > > This patch only aims to fix the sched_idle task group case. I will > have a closer look at the nice 19 case. Have you checked the different > cgroup_mode with nice 19 ? > > Vincent Same result in my nice 19 test for all of up/smp/concur/max/tasks.