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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9B313EE49A5 for ; Tue, 22 Aug 2023 07:11:16 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id D2FBE280005; Tue, 22 Aug 2023 03:11:15 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id CB98694000D; Tue, 22 Aug 2023 03:11:15 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id B807D280005; Tue, 22 Aug 2023 03:11:15 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0017.hostedemail.com [216.40.44.17]) by kanga.kvack.org (Postfix) with ESMTP id A596994000D for ; Tue, 22 Aug 2023 03:11:15 -0400 (EDT) Received: from smtpin05.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 73E081C8BA7 for ; Tue, 22 Aug 2023 07:11:15 +0000 (UTC) X-FDA: 81150869310.05.3E8D56E Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf10.hostedemail.com (Postfix) with ESMTP id C2F23C0005 for ; Tue, 22 Aug 2023 07:11:13 +0000 (UTC) Authentication-Results: imf10.hostedemail.com; dkim=pass header.d=linuxfoundation.org header.s=korg header.b=NT+zgFsl; dmarc=pass (policy=none) header.from=linuxfoundation.org; spf=pass (imf10.hostedemail.com: domain of gregkh@linuxfoundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1692688273; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=EgP54xmcYeFgL+ha0T738jQQqv3CFsTtB+g+h3VXBNo=; b=N1E6qlsd3cjqGa3BI8yWykOtckCOXKBtaDeTZFOLSG0A2m0g38GC5cuDVa3yIpGrJx1YUE XDC7bWdCCqeOGcFFSlI+vqBaL1ro9gVscO35SHPprbSASEbs9vY5MNCdeK47pY+4TviG5q 7HG0wrecl0L8bnE2j58GjrXaXmZCv8w= ARC-Authentication-Results: i=1; imf10.hostedemail.com; dkim=pass header.d=linuxfoundation.org header.s=korg header.b=NT+zgFsl; dmarc=pass (policy=none) header.from=linuxfoundation.org; spf=pass (imf10.hostedemail.com: domain of gregkh@linuxfoundation.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=gregkh@linuxfoundation.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1692688273; a=rsa-sha256; cv=none; b=peZpdhfbOZ+t8nqBAWWcxK8CaH7IET4iMolG1MsOxYV+o5zfGkXM+8HV0y8m2mBtSKn/4w ogZ5uHUep4twhFVq1Wmkc5QGNpuQG5YoUB7ZWPXW/525KYeXN7C8scNfmSoM0mjCsUsDpz rCX67s7qGj1H2H3aPbE4Bzmkcuc3pzE= Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id BE53764D8A; Tue, 22 Aug 2023 07:11:12 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 099ABC433BD; Tue, 22 Aug 2023 07:11:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1692688271; bh=YTKKyNGQ+Tv8wDS6XyoyNckBezSPa1ShICIvZHky2JA=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=NT+zgFsl55tylkic31ue3bL3wmFJmEAHoKnIxjlc8h+pAm8FOYbOIuVtaDnwrvOHB EKbfxjWpieN2QwlozxINNa9MhVPPe9Yj8E33z6fxy4JZpgri6qA18UCg0pIz1ABj2Z f+uUyN+GpTByCcPJTIJsWmh40YgS/Ic4rTkPXRMc= Date: Tue, 22 Aug 2023 09:08:18 +0200 From: Greg KH To: Saeed Mirzamohammadi Cc: stable@vger.kernel.org, Andrew Morton , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot , Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Luis Chamberlain , Kees Cook , linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: Re: [PATCH 5.4 0/1] mm: allow a controlled amount of unfairness in the page lock Message-ID: <2023082248-parting-backed-2ab0@gregkh> References: <20230821222547.483583-1-saeed.mirzamohammadi@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230821222547.483583-1-saeed.mirzamohammadi@oracle.com> X-Rspamd-Queue-Id: C2F23C0005 X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: 7q3qgw9nsinaxa7nizospznpb99yxusa X-HE-Tag: 1692688273-396119 X-HE-Meta: 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 QhQRMmC4 Sox2+RAzr2nyOQSt6TVzDHGeIDbr6rZbu08zsaYvGWveVypt8aJx2ErwJkg+oP2aymoYXEr6I9BDWhHPgiF49uDCGKpOBXgh6Cj8O/MSm2xCSPpLMnVerqplWED2XrgdHBDZLXjL7OYPd1cApkDaPP3dBiPq03r+zXY96IiPMNyU2un6gvp2O0Mf/8xJFqeQs71uKwEyK0pwicsZ22JtWbWJod5CCac+PRF1UFh2bqBnLToVNxWCvJ2qGN4KqAjiAe4vowE46bkVS0Fx/H2wiL7hBbS5AqH7ks5/hiaXIk+GS10nwKXAxD4w041233XLaJWTSay/mhBKmlRY3PHBssd5zD52pLqbU5DyPxYXpiY94cv5jzz2tuDciyg== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Aug 21, 2023 at 03:25:45PM -0700, Saeed Mirzamohammadi wrote: > We observed a 35% of regression running phoronix pts/ramspeed and also 16% > with unixbench. Regression is caused by the following commit: > dd0f194cfeb5 | mm: rewrite wait_on_page_bit_common() logic That is not a valid git id in Linus's or in the linux-stable repo that I can see. Are you sure that it is correct? thanks, greg k-h