Received: by 2002:a05:6a10:8c0a:0:0:0:0 with SMTP id go10csp2721906pxb; Tue, 19 Jan 2021 04:38:25 -0800 (PST) X-Google-Smtp-Source: ABdhPJw2pfXZ3rfb07v7XTxHLILyldFOP2lS+NpYjzPYjdQY48L6zjomnT7HxXK2vBJu1HMHEDGN X-Received: by 2002:a50:8741:: with SMTP id 1mr3251196edv.349.1611059905410; Tue, 19 Jan 2021 04:38:25 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1611059905; cv=none; d=google.com; s=arc-20160816; b=hxlrxeyAFkO+eBGwmCJKvNxnnBVItGfYM3NWMa4MeQ9+1Y2VBowRYfBpy0bbLdVDl4 6UUVuFKJJbCwTSepqNL3JRSgduLdf/8PYm/1ybNtH/wLqPXyN8aVpfxYYS8h2fnkJEkx S9kKro3qXSIohTpnRpCKCVhQ/19I51SIiaK7EeXgGhfIJTgOrPbxLdT1r1I48ieeV1N/ N68dvoaLbvjA+a2SbLwA8JxUuvKboL6SC0myTwIT1GgO8yFd6Kl7pdiI4pyAGH8x0gdX ZSadF3Leio3Rk6wXhz6xjH9GjEksE+rVMCq7PqFd6HTvxONipzJv7ucHfrYrFzcLITOQ hSnA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:user-agent:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=gNHRPKC9gmChr/IlJFy4SvGNOYgXkn3qXwkAkHAnsh0=; b=yRMBrwvqvSPwkbrmgp3RcCB1UEO41IknT39ZWrIOgpUByrviJnR8ANTD4r2qWEvicf NVeapNSMKAGSDB7VdyP+2vFEjsrHRpCRa+2oGU2O6UDQiVX2D3FTbh268INheLJxT3jW HmRsZYcmoAOo5c/bSySsPzdWtzlV3ZWewTx4cAeNwG0tDkhrVLndWtP83QxPfsl5ejJU T+q02ur4DnU34nZDyyfw3BBBffX5aTtxcmzW76KuKSSXiFJoihM/4KUCaXwEEJ5HNgoT zyQT6+NfW1+gh44S37PnyaLtEuQMMRxQLufju42uSJZzbxFE2RAKvomR40WHGkj8Eq1S MGSQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id h10si2035170ejb.554.2021.01.19.04.38.02; Tue, 19 Jan 2021 04:38:25 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387470AbhASMH4 (ORCPT + 99 others); Tue, 19 Jan 2021 07:07:56 -0500 Received: from outbound-smtp25.blacknight.com ([81.17.249.193]:60061 "EHLO outbound-smtp25.blacknight.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2392241AbhASMDP (ORCPT ); Tue, 19 Jan 2021 07:03:15 -0500 Received: from mail.blacknight.com (pemlinmail05.blacknight.ie [81.17.254.26]) by outbound-smtp25.blacknight.com (Postfix) with ESMTPS id DC3FBCB47B for ; Tue, 19 Jan 2021 12:02:21 +0000 (GMT) Received: (qmail 19652 invoked from network); 19 Jan 2021 12:02:21 -0000 Received: from unknown (HELO techsingularity.net) (mgorman@techsingularity.net@[84.203.22.4]) by 81.17.254.9 with ESMTPSA (AES256-SHA encrypted, authenticated); 19 Jan 2021 12:02:21 -0000 Date: Tue, 19 Jan 2021 12:02:20 +0000 From: Mel Gorman To: Vincent Guittot Cc: Peter Zijlstra , Ingo Molnar , Li Aubrey , Qais Yousef , LKML Subject: Re: [PATCH v3 0/5] Scan for an idle sibling in a single pass Message-ID: <20210119120220.GS3592@techsingularity.net> References: <20210119112211.3196-1-mgorman@techsingularity.net> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jan 19, 2021 at 12:33:04PM +0100, Vincent Guittot wrote: > On Tue, 19 Jan 2021 at 12:22, Mel Gorman wrote: > > > > Changelog since v2 > > o Remove unnecessary parameters > > o Update nr during scan only when scanning for cpus > > Hi Mel, > > I haven't looked at your previous version mainly because I'm chasing a > performance regression on v5.11-rcx which prevents me from testing the > impact of your patchset on my !SMT2 system. > Will do this as soon as this problem is fixed > Thanks, that would be appreciated as I do not have access to a !SMT2 system to do my own evaluation. -- Mel Gorman SUSE Labs