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 lists.sourceforge.net (lists.sourceforge.net [216.105.38.7]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7CFDECFC279 for ; Fri, 21 Nov 2025 14:30:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.sourceforge.net; s=beta; h=Content-Transfer-Encoding:Content-Type:Cc: List-Subscribe:List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id: Subject:In-Reply-To:MIME-Version:References:Message-ID:To:From:Date:Sender: Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender :Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=lNpRVowrAQip6t7lSd7vsGEAKzu2CNmNO1G79WRB8dc=; b=a3lC+SevwZbzZtj/pjwoZC0b3w Hcd+UST2wTYNrhALyx2tED9O2GYY4puNKzvAJTQyw+kaBIh0bDkQJX2yRGnU2kNOWMiyLYakWHyKE GueqnsEyIQ+fWwsoBnLnHAJAQmxNhX7ieZe4CY1MiQgYnNxy2InfRZrYH4jotyAUSnSM=; Received: from [127.0.0.1] (helo=sfs-ml-4.v29.lw.sourceforge.com) by sfs-ml-4.v29.lw.sourceforge.com with esmtp (Exim 4.95) (envelope-from ) id 1vMSA1-0006DV-Eo; Fri, 21 Nov 2025 14:30:53 +0000 Received: from [172.30.29.66] (helo=mx.sourceforge.net) by sfs-ml-4.v29.lw.sourceforge.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1vMSA1-0006DO-0U for linux-f2fs-devel@lists.sourceforge.net; Fri, 21 Nov 2025 14:30:53 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=In-Reply-To:Content-Type:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=rWL9wwR2J7ur6WOaG2a8HXovHrgszFBK7WTZWMyo8ak=; b=c3ZhcfOaB5vsx+Xwkpdf/XnTFh iZVs/ZwZSKutbinfxd8k4CJuuXV4Je/K8gOS7X4wclsEcCGWkh/Rr+uXAJ4Arvvtw6iyw4RMrg9D5 G/G7fPmWxTVELisF1MDRWdhrEAgO9Bo3y6zEip7RpsAEWrGa9i+ZadGgddhDPtXdQhYY=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID:Subject:Cc:To :From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=rWL9wwR2J7ur6WOaG2a8HXovHrgszFBK7WTZWMyo8ak=; b=gD8YGT9hAt7tJB/nV3KNYTS7Sv K6i4/lSUFxZLvv3byi6sO1sIjqqUNV1ZyVpDMGTEg/SfwVsY0HwfvVWAhuz3EPbKDgoj69Z1PHAss FfLXuKIebEgFrHOtLq5BeR1YGq6AsNxo6QiGFYB6bT73IxKDi59klTTBZ07I59eQJpUo=; Received: from casper.infradead.org ([90.155.50.34]) by sfi-mx-2.v28.lw.sourceforge.com with esmtps (TLS1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.95) id 1vMSA0-0008AP-M6 for linux-f2fs-devel@lists.sourceforge.net; Fri, 21 Nov 2025 14:30:52 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=rWL9wwR2J7ur6WOaG2a8HXovHrgszFBK7WTZWMyo8ak=; b=O22jO61BxSdaC0izHP8pSZOrFO 6W8RsHSXwq1ul46hFyH40TgXN49NMB1uTyM70T2JJKnpK9DNgoRH+Z2BQ8qFX/69h4FQpuqfANAfy bjB96/02Co5+lPsVSPNcterNtTFaTojSWU9sq+Gd8m88zGVhzmx9L6sH9O0zF30TplrlA3trAYRq/ 0JHtEdZaoee1QhsCTAl7AMnv+2Ld7MQ7MB3KmDOCIvheAFlmUFQ35c8UUN26VMRTCjPLIITwT+0zN gxJdto+vYI0YyGVIk0ikxC0o9uLKxh40c4XoAc+8+kbvQhKGhMqw1wk746LWgW+GM6ZGONbLuqZ4d ZeiOSjAA==; Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vMS9p-00000002zZ2-1DP9; Fri, 21 Nov 2025 14:30:41 +0000 Date: Fri, 21 Nov 2025 14:30:41 +0000 From: Matthew Wilcox To: Jaegeuk Kim Message-ID: References: <20251121014811.1971698-1-jaegeuk@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20251121014811.1971698-1-jaegeuk@kernel.org> X-Headers-End: 1vMSA0-0008AP-M6 Subject: Re: [f2fs-dev] [PATCH] mm/readahead: add a desired folio order for readhead X-BeenThere: linux-f2fs-devel@lists.sourceforge.net X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: David Hildenbrand , linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net On Fri, Nov 21, 2025 at 01:48:11AM +0000, Jaegeuk Kim wrote: > This patch adds a desired folio order in file_ra_state in order to get > non-zero-order allocation for readahead. Why? Does it not ramp up quickly enough for you? I see a lot of patches from you that say what the patch does but very little about why. Please explain yourself more. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E5BDE34C981 for ; Fri, 21 Nov 2025 14:30:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763735445; cv=none; b=qIc20GYZstzNq6OgBdHsafaFol7lGY9WCh5yp+Zf3z6+5iuiMIHjlZsW/LlCc8feKXNjzH4q8A7LSAou/FyeJkC1XFRLm1ftir/xe7j6sSR+7rX2ZwYlAhK7i+LCKrgXQfwktyv/pqD83OL1EAc3evyWYVeRcQ4bKk+OKKFQ8Rw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763735445; c=relaxed/simple; bh=dD9fNOpLiiMyE/GABqgpmiFCe8+xEOh3bS8WNKXt09A=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=lBdkZykprFogbtylvcnB0VuoM/xzBo/QK6xuUHQy4cDsPpc9v3ssm190vUctywTqxjc28vBR2unVMzAf+0hsVpBLkf9b9TA8LIr3bOeoiaQQKRX6dEV8Fcair6rJIi2SNaXVkb14c5oZDeTI1CAVujcwwg1H/Q2mTsoIQkXH2Fc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=O22jO61B; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="O22jO61B" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=rWL9wwR2J7ur6WOaG2a8HXovHrgszFBK7WTZWMyo8ak=; b=O22jO61BxSdaC0izHP8pSZOrFO 6W8RsHSXwq1ul46hFyH40TgXN49NMB1uTyM70T2JJKnpK9DNgoRH+Z2BQ8qFX/69h4FQpuqfANAfy bjB96/02Co5+lPsVSPNcterNtTFaTojSWU9sq+Gd8m88zGVhzmx9L6sH9O0zF30TplrlA3trAYRq/ 0JHtEdZaoee1QhsCTAl7AMnv+2Ld7MQ7MB3KmDOCIvheAFlmUFQ35c8UUN26VMRTCjPLIITwT+0zN gxJdto+vYI0YyGVIk0ikxC0o9uLKxh40c4XoAc+8+kbvQhKGhMqw1wk746LWgW+GM6ZGONbLuqZ4d ZeiOSjAA==; Received: from willy by casper.infradead.org with local (Exim 4.98.2 #2 (Red Hat Linux)) id 1vMS9p-00000002zZ2-1DP9; Fri, 21 Nov 2025 14:30:41 +0000 Date: Fri, 21 Nov 2025 14:30:41 +0000 From: Matthew Wilcox To: Jaegeuk Kim Cc: linux-kernel@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, David Hildenbrand Subject: Re: [PATCH] mm/readahead: add a desired folio order for readhead Message-ID: References: <20251121014811.1971698-1-jaegeuk@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20251121014811.1971698-1-jaegeuk@kernel.org> On Fri, Nov 21, 2025 at 01:48:11AM +0000, Jaegeuk Kim wrote: > This patch adds a desired folio order in file_ra_state in order to get > non-zero-order allocation for readahead. Why? Does it not ramp up quickly enough for you? I see a lot of patches from you that say what the patch does but very little about why. Please explain yourself more.