From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5D104EB64DD for ; Fri, 23 Jun 2023 08:16:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230521AbjFWIQ2 (ORCPT ); Fri, 23 Jun 2023 04:16:28 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54388 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230444AbjFWIQC (ORCPT ); Fri, 23 Jun 2023 04:16:02 -0400 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 465E82101; Fri, 23 Jun 2023 01:16:01 -0700 (PDT) Date: Fri, 23 Jun 2023 10:15:57 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1687508158; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=2w10Bg1hP0PyHU+ZgyHBS1JxUz7cUF7arvkGjIAKjoE=; b=D8myK6qLyHRdO1I/CYnAqxD7Pin/G4Z0Q7ieSFjQBctFoD78v0mqxD9ZDNu1weQSiicypU xQJZ+e6CpF28h+9ZFrVHf51h9aOlKrZYvd9Eol/uA+a4KLg+5QanvxC2gmklIU7A4Fvnov /tL5baq5gq+0amqnSs87KaLDBCjSf0ZbfTTFsFaJEEw3+T1nuqaIKv56zodwj8ODxvahS8 uelOiK0ycjc0kMlkXuwvzgQDIszBwLyad+qayIBOopwRMZHfgBzPkE3CwUijfon31YPVRM hwKHEgcZ20jt4JN4bV6jnz99ZYKLqfIk6OqtfSDtR6TRPYipw0hK1K7D13divg== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1687508158; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=2w10Bg1hP0PyHU+ZgyHBS1JxUz7cUF7arvkGjIAKjoE=; b=e/RyvS2LothzM8LaAY3PrI6/2QR4j9vr5W47+EU/qP64klC6cu8lI5sd9memtdnypr+rn5 CnSpW1x6fS2DuHDQ== From: Sebastian Andrzej Siewior To: John Johansen Cc: Mathieu Desnoyers , Swapnil Sapkal , Peter Zijlstra , linux-kernel@vger.kernel.org, linux-tip-commits@vger.kernel.org, Aaron Lu , x86@kernel.org, Andrew Morton , Thomas Gleixner Subject: Re: [tip: sched/core] sched: Fix performance regression introduced by mm_cid Message-ID: <20230623081557.gf5xCGdD@linutronix.de> References: <09e0f469-a3f7-62ef-75a1-e64cec2dcfc5@amd.com> <20230620091139.GZ4253@hirez.programming.kicks-ass.net> <44428f1e-ca2c-466f-952f-d5ad33f12073@amd.com> <3e9eaed6-4708-9e58-c80d-143760d6b23a@efficios.com> <6c693e3b-b941-9acf-6821-179e7a7fe2b8@efficios.com> <20230623063726.ejuc6v9D@linutronix.de> <1d8d0032-261f-fe35-0c12-23043083e676@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1d8d0032-261f-fe35-0c12-23043083e676@canonical.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2023-06-23 00:16:35 [-0700], John Johansen wrote: > With that said the patch does work, and seems to be stable in the broader > testing it has gotten. Its more complicated than I would like, and wanted to > play with ideas around improving it. I also wanted get some better benchmark data. > All things I just haven't had time for If you tell me what to do (as in run this) I could try to run it on a machine. The current version, your proposal and kmalloc() instead. > I am also not opposed to using some version of this patch now, to solve the > immediate needs and working to improve it after the fact. Sebastian