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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 92CB6C4320A for ; Tue, 17 Aug 2021 00:01:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 740C360F22 for ; Tue, 17 Aug 2021 00:01:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234857AbhHQACa (ORCPT ); Mon, 16 Aug 2021 20:02:30 -0400 Received: from foss.arm.com ([217.140.110.172]:49142 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232470AbhHQAC0 (ORCPT ); Mon, 16 Aug 2021 20:02:26 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 016031FB; Mon, 16 Aug 2021 17:01:54 -0700 (PDT) Received: from e113632-lin (usa-sjc-imap-foss1.foss.arm.com [10.121.207.14]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id EBE6D3F66F; Mon, 16 Aug 2021 17:01:51 -0700 (PDT) From: Valentin Schneider To: Srikar Dronamraju , Peter Zijlstra Cc: Ingo Molnar , Michael Ellerman , LKML , Mel Gorman , Rik van Riel , Thomas Gleixner , Vincent Guittot , Dietmar Eggemann , linuxppc-dev@lists.ozlabs.org, Nathan Lynch , Gautham R Shenoy , Geetika Moolchandani , Laurent Dufour Subject: Re: [PATCH v2 1/2] sched/topology: Skip updating masks for non-online nodes In-Reply-To: <20210816103347.GC21942@linux.vnet.ibm.com> References: <20210701041552.112072-1-srikar@linux.vnet.ibm.com> <20210701041552.112072-2-srikar@linux.vnet.ibm.com> <875yxu85wi.mognet@arm.com> <20210712124856.GA3836887@linux.vnet.ibm.com> <87zguqmay9.mognet@arm.com> <20210723143914.GI3836887@linux.vnet.ibm.com> <87h7g09bgg.mognet@arm.com> <20210809065235.GH4072958@linux.vnet.ibm.com> <875yweaig9.mognet@arm.com> <20210810114727.GB21942@linux.vnet.ibm.com> <20210816103347.GC21942@linux.vnet.ibm.com> Date: Tue, 17 Aug 2021 01:01:46 +0100 Message-ID: <87mtph6is5.mognet@arm.com> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 16/08/21 16:03, Srikar Dronamraju wrote: >> >> Your version is much much better than mine. >> And I have verified that it works as expected. >> >> > > Hey Peter/Valentin > > Are we waiting for any more feedback/testing for this? > I'm not overly fond of that last one, but AFAICT the only alternative is doing a full-fledged NUMA topology rebuild on new-node onlining (i.e. make calling sched_init_numa() more than once work). It's a lot more work for a very particular usecase. > > -- > Thanks and Regards > Srikar Dronamraju