From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f179.google.com (mail-pf1-f179.google.com [209.85.210.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 119C419992D for ; Mon, 30 Sep 2024 19:00:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.179 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727722823; cv=none; b=sdlinNbbihpXLT0vq2KnZ2IEBi4D+xVljJtljAil5TynDj0qrvA6hHHBVUM9/HLy0mBXkQH9a4eF7ZqwfDmfWuJwKhJB88kpQvQhfKN2LKH4VkiKK1kUWT2wMKfDn1yqARRdTGaWrtJNBHbgtolw6W6XMRmcZ9EqcRgZkWeWXxU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727722823; c=relaxed/simple; bh=UTeuYgMehmLJA/arPzgIQes3j/4SwwxcY8cev10CXXE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=p+45T/17UUwnDD9n+z6BYwnlhMoF4bmy7W6M+snDu3REzDmakxUSpEX6zVmy4H2q2H2hTVgLX/LzkCBokHF1xdj/aZzj8A+Ux+s+Z6AIH9W7WTrILVGUXMdZEtfJqqneLMXd+vM2FvZv38hCrWra++vQpMwNjmLSI8ZKWqEwDV4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=osandov.com; spf=none smtp.mailfrom=osandov.com; dkim=pass (2048-bit key) header.d=osandov-com.20230601.gappssmtp.com header.i=@osandov-com.20230601.gappssmtp.com header.b=AD2ZcWHJ; arc=none smtp.client-ip=209.85.210.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=osandov.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=osandov.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=osandov-com.20230601.gappssmtp.com header.i=@osandov-com.20230601.gappssmtp.com header.b="AD2ZcWHJ" Received: by mail-pf1-f179.google.com with SMTP id d2e1a72fcca58-71790698b22so645256b3a.1 for ; Mon, 30 Sep 2024 12:00:18 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=osandov-com.20230601.gappssmtp.com; s=20230601; t=1727722818; x=1728327618; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=tK4zHMv9BgdsXfJFkQFkyqT5Q9MVxMalN7pOJK+VYMc=; b=AD2ZcWHJT/Eh8QCoGwtR2mU/72Hn5PXbAqIORnZDyFQ12uCk5B6tgPR0gvJL4FDpmJ ulZzhaj/oQ9sKYNODSjhgVv94UWmTt9EA+rp3AZxM3D7FuMreK9zLBVPVKWu3uh3+yR+ vy+EFC32Ma8cvowRGq+XAGeEadeMV+x3qYlOPzmGn6BqAD76WPYrQPop8bkeDhZ4ERpK 1UNXgJ0vFc4lVx8afjUXBo0LvvB6Rd4zof4t3Zc6Vy61FsDUmw+QDwS60x7YioxFUGH3 CoTsxWXSnHhGL7i7+cVMdkBzfJQ1pVAYBQUJy/0cBhT0hau1JKlewvZ94VVeJ6zOGv4q 0Crg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727722818; x=1728327618; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=tK4zHMv9BgdsXfJFkQFkyqT5Q9MVxMalN7pOJK+VYMc=; b=Pce3EMOxcS/cHbfJ9FM7nGdJvO3Mgu4lBSrH3kft8RinvWgDqR6+zSzhxEuq9wpcxj 5a498gkJpyc8qiG8d8Z716N3XFmOaMKdNNFjDdyoAJ4dgC/tMTi+0UpePieB10j8LFvL d1Pd6/BSy5G1nSJM+ChliRf4kd9yz2Tb+AsW1zq3/nDGnmTTvUdkhKYUDlOO6o6C1AVQ jQJyunq5E01SHwn8l/Uir3QjetlDm6dQTZ6DUFHLFUTk0Rfnd71JX4ZB2PmtfxULV0/W KUu18RSOtGCaEjE9KY9ilWUVftoym0kI576VrNzs1JsSIdLbdB5nKUt4ijByBkR3hswT SnEg== X-Forwarded-Encrypted: i=1; AJvYcCV5bzS77eIADkGf6Xtidq0PjeKUkA0OWL9Z1ovsGCcs44wNYi2NCTPm0O0EObM+fW7u0LMXXFu6VNtY@vger.kernel.org X-Gm-Message-State: AOJu0YwUkUhL2j0ydPVseQVW66SWLwHF/q9fr3xHDkRgIIx5cID+xD9x HglJaiNivV7ttaFgOqO2ZzoxPKJqihTB7J2Zs6SLf+CMNu62DrPByHwPFw/22s4= X-Google-Smtp-Source: AGHT+IHr3t4octArrJkwK4KlggdiRYNEixY4E7CvOHzMJxxuBtEfGjyLTrjjT9DROP00qxEU234jog== X-Received: by 2002:a05:6a00:2392:b0:718:e49f:246e with SMTP id d2e1a72fcca58-71b260a8a3fmr8397735b3a.6.1727722818090; Mon, 30 Sep 2024 12:00:18 -0700 (PDT) Received: from telecaster.dhcp.thefacebook.com ([2620:10d:c090:500::6:e49b]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71b2652a622sm6544654b3a.164.2024.09.30.12.00.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Sep 2024 12:00:17 -0700 (PDT) Date: Mon, 30 Sep 2024 12:00:13 -0700 From: Omar Sandoval To: David Howells Cc: Eduard Zingerman , Leon Romanovsky , Christian Brauner , Manu Bretelle , asmadeus@codewreck.org, ceph-devel@vger.kernel.org, christian@brauner.io, ericvh@kernel.org, hsiangkao@linux.alibaba.com, idryomov@gmail.com, jlayton@kernel.org, linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-nfs@vger.kernel.org, marc.dionne@auristor.com, netdev@vger.kernel.org, netfs@lists.linux.dev, pc@manguebit.com, smfrench@gmail.com, sprasad@microsoft.com, tom@talpey.com, v9fs@lists.linux.dev, willy@infradead.org Subject: Re: [PATCH v2 19/25] netfs: Speed up buffered reading Message-ID: References: <423fbd9101dab18ba772f24db4ab2fecf5de2261.camel@gmail.com> <2968940.1727700270@warthog.procyon.org.uk> <20240925103118.GE967758@unreal> <20240923183432.1876750-1-chantr4@gmail.com> <20240814203850.2240469-20-dhowells@redhat.com> <1279816.1727220013@warthog.procyon.org.uk> <4b5621958a758da830c1cf09c6f6893aed371f9d.camel@gmail.com> <2969660.1727700717@warthog.procyon.org.uk> <3007428.1727721302@warthog.procyon.org.uk> Precedence: bulk X-Mailing-List: ceph-devel@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: <3007428.1727721302@warthog.procyon.org.uk> On Mon, Sep 30, 2024 at 07:35:02PM +0100, David Howells wrote: > Eduard Zingerman wrote: > > > Are there any hacks possible to printout tracelog before complete boot > > somehow? > > You could try setting CONFIG_NETFS_DEBUG=y. That'll print some stuff to > dmesg. > > David I hit this in drgn's VM test setup, too, and just sent a patch that fixed it for me and Manu: https://lore.kernel.org/linux-fsdevel/cbaf141ba6c0e2e209717d02746584072844841a.1727722269.git.osandov@fb.com/ Thanks, Omar 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.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (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 1617ECE8379 for ; Mon, 30 Sep 2024 19:00:28 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4XHVky5Zdzz306x for ; Tue, 1 Oct 2024 05:00:26 +1000 (AEST) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip="2607:f8b0:4864:20::432" ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1727722823; cv=none; b=WaK8NLFt5G9ldhxtchxMBnjuVWXyzZM0+XBW+806xgnx+CAxIJarvDTZ+OKuFeI+Iv3oR7Jg1lU3TQjPObfguXv0g72Y9VtweUQbjmu6McLhI/+fkAeL6HQQGOJl3Rj96ImVrSC/XhIKfNid5n1ztU6Vue/fj60gHOt48AjzENsZu+0kGaQ2Pv/D0U95zkM8FGKzUmobPERDBsc0aItPGYGKEeO/0UR3Vdiab8SDJleaxoQS8HDL313o8vCr2ApIcvAkSpWLkHHstFlma+54cmbcoCSlWlyvDUw8dIBvVAA7bKACYZJt13JmGsN2cbXD34L2qA51uQ3lRb8Wt91nQQ== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1727722823; c=relaxed/relaxed; bh=tK4zHMv9BgdsXfJFkQFkyqT5Q9MVxMalN7pOJK+VYMc=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=PSClPeA5Lll07NzGSJaSFK3kR45KarVSXNdxOUIusCtV7nYm0uqdDiUe3lOTq/olj+83OOY1QunnTD8P99fCvDm+nIbKgIovmlVav6HxPKPz2DMnlShOJX++AjOKMTtNUDmMM0sAqVtDMbulyJtLgbziiKDuSEEK7SePaGgeGaeJbefTxHxJjPiZhcmgLE2igb0QEt322sBU9LcvqZk2bqTzq+AJWDZJHcckceKX0uj894qQHircSldWzj1Gva+X+eU8Yj7Rqu6pSe58TXxl6l5FdJ5ENRSbCPI06T540n7ADjB9Alr6fkDORrxQkqq4Fpkrt8ObDlDQtfsdxb+Gkg== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=osandov.com; dkim=pass (2048-bit key; unprotected) header.d=osandov-com.20230601.gappssmtp.com header.i=@osandov-com.20230601.gappssmtp.com header.a=rsa-sha256 header.s=20230601 header.b=IpFSOa4i; dkim-atps=neutral; spf=none (client-ip=2607:f8b0:4864:20::432; helo=mail-pf1-x432.google.com; envelope-from=osandov@osandov.com; receiver=lists.ozlabs.org) smtp.mailfrom=osandov.com Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=osandov.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=osandov-com.20230601.gappssmtp.com header.i=@osandov-com.20230601.gappssmtp.com header.a=rsa-sha256 header.s=20230601 header.b=IpFSOa4i; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=osandov.com (client-ip=2607:f8b0:4864:20::432; helo=mail-pf1-x432.google.com; envelope-from=osandov@osandov.com; receiver=lists.ozlabs.org) Received: from mail-pf1-x432.google.com (mail-pf1-x432.google.com [IPv6:2607:f8b0:4864:20::432]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4XHVkt4bxhz2y92 for ; Tue, 1 Oct 2024 05:00:22 +1000 (AEST) Received: by mail-pf1-x432.google.com with SMTP id d2e1a72fcca58-717839f9eb6so567064b3a.3 for ; Mon, 30 Sep 2024 12:00:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=osandov-com.20230601.gappssmtp.com; s=20230601; t=1727722818; x=1728327618; darn=lists.ozlabs.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=tK4zHMv9BgdsXfJFkQFkyqT5Q9MVxMalN7pOJK+VYMc=; b=IpFSOa4inRciG+bysiDMZ5jc5Z1oBHbww3KdCQT8ZftEswJfeE202LJ7HAjHFGGM+d ZhlZgMQ4FH/+yeAwOMWqgm6bVJDNgikiXPoReNcawBzMbniksw4YTJ8E4/voUd0N0pnQ LhFNr3YsBVUBO3SDPCSB6ICn9OOZAOByXFc56hjU34aLydZC8ZsyhrdbL7keuiCr66+t BaYkDaQY9xTO844+m4Ij0QreuLHddZt1McgH+seCVNnrwWPiGgOHX1JWVWkI+VjLTEY1 yP4wEWYqqi1sP1FwcL3pE4CF/MX3rLIZMDim/fekSpRrBmaAt+U2RWHtrRtFjiUSoGaP 36Ag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727722818; x=1728327618; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=tK4zHMv9BgdsXfJFkQFkyqT5Q9MVxMalN7pOJK+VYMc=; b=BBaewwEgoT6iYnmvGcayWD37u9RCBR5NMTceWujEbxseF4XIGG/0edd+q4X2x2z0OT GqkSZRO3bYzhLxSNlIExT5tK7U3Zoe2kCrpkBCkcUgNAqOtTssAz2ehiTojHmk4DosVK nCBj26YPjR3MwB+E6NRvMbukK+Un7h6o9FnPrvak/SAM3hFONUKtfe6iZmE6CbTv299n bc1dBPUcG/DMTpBB7UYOtgB0CdQd/1vbStwoFd+8YxRJyRnP+Rc3pDJzlmkT2J1ueHD1 EpiXi+J9ktZ9f5+oSD/yACyyoHMEruKy5oHlBHLzgecb0Y1b+P+6V3P/U+Iec70f5ex7 ggng== X-Forwarded-Encrypted: i=1; AJvYcCVi4npQwHRJsI7idGQkn6/6bvAnnSPUVDRflipoTelAagjdlNkFPj9h0pInxZcbG4cjEkAH+xEcc00GJg==@lists.ozlabs.org X-Gm-Message-State: AOJu0Yz1MckqY32DczDaNoerCuJAwOzvXBu0LrNHZRsNKqby0pIQBELP acZv5dh9Kdq9/zbo7d2cg1z5CnX3DlLv7aDfmU0SUvkkC6OFLEQNdPehLHm/36k= X-Google-Smtp-Source: AGHT+IHr3t4octArrJkwK4KlggdiRYNEixY4E7CvOHzMJxxuBtEfGjyLTrjjT9DROP00qxEU234jog== X-Received: by 2002:a05:6a00:2392:b0:718:e49f:246e with SMTP id d2e1a72fcca58-71b260a8a3fmr8397735b3a.6.1727722818090; Mon, 30 Sep 2024 12:00:18 -0700 (PDT) Received: from telecaster.dhcp.thefacebook.com ([2620:10d:c090:500::6:e49b]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-71b2652a622sm6544654b3a.164.2024.09.30.12.00.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 30 Sep 2024 12:00:17 -0700 (PDT) Date: Mon, 30 Sep 2024 12:00:13 -0700 From: Omar Sandoval To: David Howells Subject: Re: [PATCH v2 19/25] netfs: Speed up buffered reading Message-ID: References: <423fbd9101dab18ba772f24db4ab2fecf5de2261.camel@gmail.com> <2968940.1727700270@warthog.procyon.org.uk> <20240925103118.GE967758@unreal> <20240923183432.1876750-1-chantr4@gmail.com> <20240814203850.2240469-20-dhowells@redhat.com> <1279816.1727220013@warthog.procyon.org.uk> <4b5621958a758da830c1cf09c6f6893aed371f9d.camel@gmail.com> <2969660.1727700717@warthog.procyon.org.uk> <3007428.1727721302@warthog.procyon.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <3007428.1727721302@warthog.procyon.org.uk> X-BeenThere: linux-erofs@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development of Linux EROFS file system List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: asmadeus@codewreck.org, linux-mm@kvack.org, marc.dionne@auristor.com, linux-afs@lists.infradead.org, pc@manguebit.com, linux-cifs@vger.kernel.org, Leon Romanovsky , Manu Bretelle , willy@infradead.org, smfrench@gmail.com, hsiangkao@linux.alibaba.com, idryomov@gmail.com, sprasad@microsoft.com, linux-nfs@vger.kernel.org, tom@talpey.com, ceph-devel@vger.kernel.org, ericvh@kernel.org, christian@brauner.io, Christian Brauner , netdev@vger.kernel.org, v9fs@lists.linux.dev, jlayton@kernel.org, linux-kernel@vger.kernel.org, Eduard Zingerman , linux-fsdevel@vger.kernel.org, netfs@lists.linux.dev, linux-erofs@lists.ozlabs.org Errors-To: linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Sender: "Linux-erofs" On Mon, Sep 30, 2024 at 07:35:02PM +0100, David Howells wrote: > Eduard Zingerman wrote: > > > Are there any hacks possible to printout tracelog before complete boot > > somehow? > > You could try setting CONFIG_NETFS_DEBUG=y. That'll print some stuff to > dmesg. > > David I hit this in drgn's VM test setup, too, and just sent a patch that fixed it for me and Manu: https://lore.kernel.org/linux-fsdevel/cbaf141ba6c0e2e209717d02746584072844841a.1727722269.git.osandov@fb.com/ Thanks, Omar