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=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS 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 C631DC433DF for ; Tue, 2 Jun 2020 09:29:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A4CC6206A4 for ; Tue, 2 Jun 2020 09:29:29 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="UoHVxX62" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726365AbgFBJ32 (ORCPT ); Tue, 2 Jun 2020 05:29:28 -0400 Received: from us-smtp-1.mimecast.com ([205.139.110.61]:20591 "EHLO us-smtp-delivery-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725811AbgFBJ32 (ORCPT ); Tue, 2 Jun 2020 05:29:28 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1591090167; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=yaAnC1bu8czWhxdtW2udCqceu2QK2ffQrzn9j3bkG8Q=; b=UoHVxX62YWpOrJi6Mh6oaYaxriR+cUgYwgO2ZcgD4fj0quWAoaGnAjOUZzEesFF/UihWvn WxtyX/QVCRyOH1gG2jFRWtCpJGAKQm676fn4Sz+wGw9JuJCIEqQe0nJt2R+4ihB6iYebZM bZTB9pyX292Y3HTuo3KQkWjAeAJsT7U= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-94-kN1EWEaFMuaHDH2AGVvYHw-1; Tue, 02 Jun 2020 05:29:25 -0400 X-MC-Unique: kN1EWEaFMuaHDH2AGVvYHw-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id DFA64100CCC1; Tue, 2 Jun 2020 09:29:23 +0000 (UTC) Received: from localhost (ovpn-115-9.ams2.redhat.com [10.36.115.9]) by smtp.corp.redhat.com (Postfix) with ESMTP id E449111A9DC; Tue, 2 Jun 2020 09:29:17 +0000 (UTC) Date: Tue, 2 Jun 2020 10:29:16 +0100 From: Stefan Hajnoczi To: Chirantan Ekbote Cc: Miklos Szeredi , Vivek Goyal , Linux FS Devel , virtio-fs-list , Dylan Reid , Suleiman Souhlal , slp@redhat.com Subject: Re: [PATCH 2/2] fuse: virtiofs: Add basic multiqueue support Message-ID: <20200602092916.GC9852@stefanha-x1.localdomain> References: <20200424062540.23679-1-chirantan@chromium.org> <20200424062540.23679-2-chirantan@chromium.org> <20200427151934.GB1042399@stefanha-x1.localdomain> <20200501154752.GA222606@stefanha-x1.localdomain> MIME-Version: 1.0 In-Reply-To: X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="jy6Sn24JjFx/iggw" Content-Disposition: inline Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org --jy6Sn24JjFx/iggw Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Thu, May 07, 2020 at 05:10:15PM +0900, Chirantan Ekbote wrote: > On Sat, May 2, 2020 at 12:48 AM Stefan Hajnoczi wro= te: > > On Fri, May 01, 2020 at 04:14:38PM +0900, Chirantan Ekbote wrote: > > > On Tue, Apr 28, 2020 at 12:20 AM Stefan Hajnoczi wrote: > > io_uring's vocabulary is expanding. It can now do openat2(2), close(2)= , > > statx(2), but not mkdir(2), unlink(2), rename(2), etc. > > > > I guess there are two options: > > 1. Fall back to threads for FUSE operations that cannot yet be done via > > io_uring. > > 2. Process FUSE operations that cannot be done via io_uring > > synchronously. > > >=20 > I'm hoping that using io_uring for just the reads and writes should > give us a big enough improvement that we can do the rest of the > operations synchronously. Sounds like a good idea. Stefan --jy6Sn24JjFx/iggw Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEhpWov9P5fNqsNXdanKSrs4Grc8gFAl7WG+wACgkQnKSrs4Gr c8itMggArze0SlGMV0FObjiOGh2x91wC4w83cdukHjDRXnx8LUROTBFIWVUDTxYz YRq46Fr1LAx38jacfEQVrTbBVDgK5FQzobPKrJycw4X2z5b3OvfH3iO+Xx9KcL4M 4MXBvL+Z4EBpXQmdWeR25jAztg75rqapof0x4o+ZESbu7h4oItjYjmBHszbx+t+s 63anVjgk/0zoi66ifHzupCJSuxfAVuyFMUU6zNQBWPtWPzhjE87rPH/ZKDtQAylB H5UxNF5nidSN7qTPm9sFxEa7SPuXUw+tdfKXZZVN3PbOBITQSgE7NHdAjEpDzgRs MOS5GYYlk740tAAMpTFDFydpJuGQdQ== =FKk/ -----END PGP SIGNATURE----- --jy6Sn24JjFx/iggw--