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,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED 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 3C355C4727C for ; Wed, 30 Sep 2020 15:33:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A65C420759 for ; Wed, 30 Sep 2020 15:33:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="key not found in DNS" (0-bit key) header.d=szeredi.hu header.i=@szeredi.hu header.b="LA4JYerD" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728329AbgI3Pdn (ORCPT ); Wed, 30 Sep 2020 11:33:43 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42948 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725823AbgI3Pdm (ORCPT ); Wed, 30 Sep 2020 11:33:42 -0400 Received: from mail-ua1-x942.google.com (mail-ua1-x942.google.com [IPv6:2607:f8b0:4864:20::942]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BCB07C061755 for ; Wed, 30 Sep 2020 08:33:42 -0700 (PDT) Received: by mail-ua1-x942.google.com with SMTP id z1so594790uaa.6 for ; Wed, 30 Sep 2020 08:33:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=szeredi.hu; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=/uO4l1Irl7Jc1Dt7f5WL2j3BxSE2iGdkPJ94cD3diLM=; b=LA4JYerDPZmq+2E8pGXpoAJ2R3R6DSDIFyoXhn37oGwuZ5e0jbNqwYQZruoOCXsvCI RShTjEmbsgKKLzzvoOOBIZaU/R7wbt7JatMDRzQvaaekkbfQcFSpULtcQ4A/cKq/vxaG FXErj58Js4dFB08C6gceZtiUM7h0QE6nd6OdA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=/uO4l1Irl7Jc1Dt7f5WL2j3BxSE2iGdkPJ94cD3diLM=; b=c3cfzBHzVXnngE5VWF3F1+/a0MEklLxmZX1L9kM99BwT/DjJcsg2Wim7EevGpI7sOm 2ZxKZI31VoJR+FzwrUbX/Hk0SWylUEGkU+jYHQD9MxGmrULP3XIlVl5yBwBOZ1wNBAM8 K3phi+F5VhpLLLW3FsyiE/X7mnIgZyv/Pcbycb3YkeKZMEWEU6vSbkQo/e1ALyeEYN+d 5zJmX7pM/n8VA3+vAYEhHg753DZxK/9i6PJ3fADgTaDfuIkDNzI4+heJBFJ6/P+I32OP 0nv3bPrAFYeqg6o2gCUgjCAB0+AykrAghmE48N+32Gjvf7jqOw/c06rsgoBBG43aRNDz Ie2w== X-Gm-Message-State: AOAM530Zcg3rnnZ26AKhJZn+JOm7JMhQpxlXPE67r/eNUlmNiUkpZU3q rY2tEkAq8oU2XWi+trCZH0tO/TlzvzmYdjIz/q1H6Q== X-Google-Smtp-Source: ABdhPJzyumaQn67a2uysWGSs3pQrDLQnwa3K/NizNBUQXsUBZVlCHdIlWthWT9umZ5q8w7kmZMHdnhq8Zg0vNAnpYNM= X-Received: by 2002:ab0:6298:: with SMTP id z24mr2147413uao.105.1601480021939; Wed, 30 Sep 2020 08:33:41 -0700 (PDT) MIME-Version: 1.0 References: <20200924131318.2654747-1-balsini@android.com> In-Reply-To: <20200924131318.2654747-1-balsini@android.com> From: Miklos Szeredi Date: Wed, 30 Sep 2020 17:33:30 +0200 Message-ID: Subject: Re: [PATCH V9 0/4] fuse: Add support for passthrough read/write To: Alessio Balsini Cc: Akilesh Kailash , Amir Goldstein , Antonio SJ Musumeci , David Anderson , Giuseppe Scrivano , Jann Horn , Jens Axboe , Martijn Coenen , Palmer Dabbelt , Paul Lawrence , Stefano Duo , Zimuzo Ezeozue , fuse-devel , kernel-team , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Thu, Sep 24, 2020 at 3:13 PM Alessio Balsini wrote: > The first benchmarks were done by running FIO (fio-3.21) with: > - bs=4Ki; > - file size: 50Gi; > - ioengine: sync; > - fsync_on_close: true. > The target file has been chosen large enough to avoid it to be entirely > loaded into the page cache. > Results are presented in the following table: > > +-----------+--------+-------------+--------+ > | Bandwidth | FUSE | FUSE | Bind | > | (KiB/s) | | passthrough | mount | > +-----------+--------+-------------+--------+ > | read | 468897 | 502085 | 516830 | > +-----------+--------+-------------+--------+ > | randread | 15773 | 26632 | 21386 | Have you looked into why passthrough is faster than native? Thanks, Miklos