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=-0.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, 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 71FC0C3A5A1 for ; Thu, 22 Aug 2019 14:02:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4186F233FC for ; Thu, 22 Aug 2019 14:02:19 +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="kX1t1pYV" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732426AbfHVOCS (ORCPT ); Thu, 22 Aug 2019 10:02:18 -0400 Received: from mail-io1-f65.google.com ([209.85.166.65]:42357 "EHLO mail-io1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730733AbfHVOCS (ORCPT ); Thu, 22 Aug 2019 10:02:18 -0400 Received: by mail-io1-f65.google.com with SMTP id e20so11980932iob.9 for ; Thu, 22 Aug 2019 07:02:18 -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=1D/stRInaG/B0oiGaQ/Y2em5iSkjBb4j7/1WQmQSPlk=; b=kX1t1pYVzDBtynIeNroUD+4pMZ+Sk7MQpN01u5fmTOX37BYSYS25U5qhauO+bU7vaD RNGigmtEuXj1wGLyFC32YIYBySSbD2EwU26/0HRM18LvR9BsE8UB3Va8SyfNvEYzdNhY l2B4zj1oReaTshSU2ktuvvzIczvOyoxH9kMN8= 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=1D/stRInaG/B0oiGaQ/Y2em5iSkjBb4j7/1WQmQSPlk=; b=OBdbHnS8JWFwloB+42l+FpCGOLUCH89nM3+BgoqiLKyarUgPU/x9l1cvcz7gJwVfCE vzsF7rOwcz+hWE5lIRsrPwcik4kZChhnDpMkvD83S7Rf93U+QjDMeCWkMRSoV7hMGReJ pSqG+3d9a4FneBQmOKVH2eq6Qp4OGmmzqRtQkIi3ZK8UsXXIJBsShnXyJZImb11prlSz IrhGQQeylKIXhA/BTvGWFjl92imNB4onXcrrvclyINx5XAjYfzpIZIGn5ErwVhVUfW0f zTx2kGz4c4ytJTMdoYu0lxxa8QPM81cRy+UeFV2pGramkOaiJeEGFZHda3bPGVU7/Seg QJuQ== X-Gm-Message-State: APjAAAUPseC20n3SBjsmFcQMSipVbaBTZGhap9WVzieHQIerCF4H4lnC bQel9NdP43n5h/LlZQUK+aTaG35HQii0FloB/GPnvNHa X-Google-Smtp-Source: APXvYqzI4jqR9iyNyhx34u82QxUY8gzFu0lPcJ5OOX63KpRTO+bociYLs+S/0YC4+Cq4X/YJ9TQF2F6ragKTp4ZECcM= X-Received: by 2002:a02:5246:: with SMTP id d67mr16691716jab.58.1566482537375; Thu, 22 Aug 2019 07:02:17 -0700 (PDT) MIME-Version: 1.0 References: <5abd7616-5351-761c-0c14-21d511251006@huawei.com> <20190820091650.GE9855@stefanha-x1.localdomain> <20190821160551.GD9095@stefanha-x1.localdomain> <954b5f8a-4007-f29c-f38e-dd5585879541@huawei.com> <0e8090c7-0c7c-bcbe-af75-33054d3a3efb@huawei.com> In-Reply-To: From: Miklos Szeredi Date: Thu, 22 Aug 2019 16:02:06 +0200 Message-ID: Subject: Re: [Virtio-fs] [QUESTION] A performance problem for buffer write compared with 9p To: Miklos Szeredi Cc: wangyan , Stefan Hajnoczi , linux-fsdevel , "virtio-fs@redhat.com" Content-Type: multipart/mixed; boundary="0000000000003042650590b5237e" Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org --0000000000003042650590b5237e Content-Type: text/plain; charset="UTF-8" On Thu, Aug 22, 2019 at 3:30 PM Miklos Szeredi wrote: > > On Thu, Aug 22, 2019 at 3:18 PM wangyan wrote: > > > I used these commands: > > virtiofsd cmd: > > ./virtiofsd -o vhost_user_socket=/tmp/vhostqemu -o source=/mnt/share/ > > -o cache=always -o writeback > > mount cmd: > > mount -t virtio_fs myfs /mnt/virtiofs -o > > rootmode=040000,user_id=0,group_id=0 > > Good. > > I think I got it now, updated patch attached. > > Thanks for your patience! > > Miklos Previous one was broken as well. I hope this one works... --0000000000003042650590b5237e Content-Type: text/x-patch; charset="US-ASCII"; name="virtio-fs-nostrict-v3.patch" Content-Disposition: attachment; filename="virtio-fs-nostrict-v3.patch" Content-Transfer-Encoding: base64 Content-ID: X-Attachment-Id: f_jzmr81lb0 LS0tCiBmcy9mdXNlL3ZpcnRpb19mcy5jIHwgICAgNCArKysrCiAxIGZpbGUgY2hhbmdlZCwgNCBp bnNlcnRpb25zKCspCgotLS0gYS9mcy9mdXNlL3ZpcnRpb19mcy5jCisrKyBiL2ZzL2Z1c2Uvdmly dGlvX2ZzLmMKQEAgLTg5MSw2ICs4OTEsMTAgQEAgc3RhdGljIGludCB2aXJ0aW9fZnNfZmlsbF9z dXBlcihzdHJ1Y3QgcwogCWlmIChlcnIgPCAwKQogCQlnb3RvIGVycl9mcmVlX2luaXRfcmVxOwog CisJLyogTm8gc3RyaWN0IGFjY291bnRpbmcgbmVlZGVkIGZvciB2aXJ0aW8tZnMgKi8KKwlzYi0+ c19iZGktPmNhcGFiaWxpdGllcyA9IEJESV9DQVBfTk9fQUNDVF9XQjsKKwliZGlfc2V0X21heF9y YXRpbyhzYi0+c19iZGksIDEwMCk7CisKIAlmYyA9IGZzLT52cXNbVlFfUkVRVUVTVF0uZnVkLT5m YzsKIAogCS8qIFRPRE8gdGFrZSBmdXNlX211dGV4IGFyb3VuZCB0aGlzIGxvb3A/ICovCg== --0000000000003042650590b5237e--