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[2620:137:e000::3:8]) by mx.google.com with ESMTPS id x26-20020a25acda000000b00d9a5adc8b0fsi9682132ybd.153.2023.10.25.02.47.24 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Oct 2023 02:47:25 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:8 as permitted sender) client-ip=2620:137:e000::3:8; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:8 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by fry.vger.email (Postfix) with ESMTP id 4973A8078617; Wed, 25 Oct 2023 02:47:22 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at fry.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234759AbjJYJrN (ORCPT + 99 others); Wed, 25 Oct 2023 05:47:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60670 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234753AbjJYJq6 (ORCPT ); Wed, 25 Oct 2023 05:46:58 -0400 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 10E76DD for ; Wed, 25 Oct 2023 02:46:20 -0700 (PDT) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7A5DCC433CA; Wed, 25 Oct 2023 09:46:16 +0000 (UTC) Date: Wed, 25 Oct 2023 05:46:12 -0400 From: Steven Rostedt To: LKML Cc: Thomas Gleixner , Peter Zijlstra , Ankur Arora , Linus Torvalds , linux-mm@kvack.org, x86@kernel.org, akpm@linux-foundation.org, luto@kernel.org, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, willy@infradead.org, mgorman@suse.de, jon.grimm@amd.com, bharata@amd.com, raghavendra.kt@amd.com, boris.ostrovsky@oracle.com, konrad.wilk@oracle.com, jgross@suse.com, andrew.cooper3@citrix.com, Joel Fernandes , Youssef Esmat , Vineeth Pillai , Suleiman Souhlal , Ingo Molnar , Daniel Bristot de Oliveira Subject: Re: [POC][RFC][PATCH] sched: Extended Scheduler Time Slice Message-ID: <20231025054612.09bc81a2@gandalf.local.home> In-Reply-To: <20231025054219.1acaa3dd@gandalf.local.home> References: <20231025054219.1acaa3dd@gandalf.local.home> X-Mailer: Claws Mail 3.19.1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-0.8 required=5.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on fry.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (fry.vger.email [0.0.0.0]); Wed, 25 Oct 2023 02:47:22 -0700 (PDT) On Wed, 25 Oct 2023 05:42:19 -0400 Steven Rostedt wrote: > So, bit 1 is for user space to tell the kernel "please extend me", and bit > two is for the kernel to tell user space "OK, I extended you, but call > sched_yield() when done". I'm waiting for someone to correct me and say it's actually "bit 0 and bit 1" -- Steve