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[23.128.96.18]) by mx.google.com with ESMTP id e11si6514981edy.255.2021.08.05.14.30.36; Thu, 05 Aug 2021 14:31:09 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@gmail.com header.s=20161025 header.b=ubstJrMI; spf=pass (google.com: domain of linux-nfs-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-nfs-owner@vger.kernel.org; dmarc=pass (p=NONE sp=QUARANTINE dis=NONE) header.from=gmail.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231400AbhHEULj (ORCPT + 99 others); Thu, 5 Aug 2021 16:11:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37004 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231372AbhHEULj (ORCPT ); Thu, 5 Aug 2021 16:11:39 -0400 Received: from mail-pj1-x102f.google.com (mail-pj1-x102f.google.com [IPv6:2607:f8b0:4864:20::102f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE5EDC061765 for ; Thu, 5 Aug 2021 13:11:24 -0700 (PDT) Received: by mail-pj1-x102f.google.com with SMTP id e2-20020a17090a4a02b029016f3020d867so12309789pjh.3 for ; Thu, 05 Aug 2021 13:11:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=+xS0rNCbWcHnzm6yhSIJwEdxrGyiUrUKRfpnM0ZXn1Y=; b=ubstJrMI4ocbkAcB0Y068u3MLZh8hPKdA33BMB+YuSF7BJtMffh6HhRESClQMI2bwC qNtYXLKWl+LpqCSL+9jBkVBme+COPvft48vW42ELz4f5/Qml2QwSOW0mlkqbjjCC+xBg OV67317fw9+5Ea9wvZ2NTnkiJJzYiYJAJjVc7mTSqyrBWCFZz0AfOi3BtWy7sCdAdP32 oJE3MLuCXsAKssr0yChO1ha3clDhuib0AZKbkZBCRIorscjfp4gobmzGFlxTGBJ761Mv uC1ga6mH9cZJ7ZzVujcI0/APRkKdg7bwJY1ERT7BFTNXTSWXBFUHjrnTxsl3UzXBAOqt Dmwg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=+xS0rNCbWcHnzm6yhSIJwEdxrGyiUrUKRfpnM0ZXn1Y=; b=mvDy36QfRTjZYp0s9xGNHdDBUHKHhRtgHQz9Swglt/flq2lIPGIMT1E2a5BQGky+6V 9+jdxmX0zkboye6fM4c02RIugJXl5XgUW9GBc5Idyi5aO7nruuShKCjiOWBLI5iZ9j1m yn7L/i2XLOWaJQqcCBttC9YxcAqTHqOva6jdOK6lRc0gHMm1c6kSBdqnpLLhUXE6fZAw WvUwBZoefFJkIypeGkWW3sQNOFcK8uz2I7gKVghEakcOSxK+kvAsU4MOv87tjVJFfAQn egnhpsoaKFeR2GDujh4gsY3gucRzTcLv9Hm3cvJH8ex543MysPXC37uuxaYokRhQ9CEJ b94A== X-Gm-Message-State: AOAM53075ICWhlrgVLjqxZ0gWWKJPjtN+r1PRo9752o0b0WZf4YuKd2i B7VTO238qbEHkKAfU/VDk1hUrQgB+YM= X-Received: by 2002:a17:90a:4e4e:: with SMTP id t14mr6526951pjl.8.1628194284487; Thu, 05 Aug 2021 13:11:24 -0700 (PDT) Received: from nyarly.rlyeh.local ([179.233.244.167]) by smtp.gmail.com with ESMTPSA id w18sm7407934pjg.50.2021.08.05.13.11.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 05 Aug 2021 13:11:23 -0700 (PDT) Date: Thu, 5 Aug 2021 17:11:19 -0300 From: Thiago Rafael Becker To: Steve Dickson Cc: Trond Myklebust , "tbecker@redhat.com" , "linux-nfs@vger.kernel.org" Subject: Re: [RFC PATCH] mount.nfs: Add readahead option Message-ID: References: <20210803130717.2890565-1-trbecker@gmail.com> <6b627dc6ebc9ee1cbd37a62b48d08b1a031f0f08.camel@hammerspace.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Hello, all On Thu, Aug 05, 2021 at 02:23:29PM -0400, Steve Dickson wrote: > Hey Trond! > but setting a mount option is much simpler and straightforward... > Plus with nfsmount.conf, it can be per fs,server,or global. > > You know I am not a fan of taking new mount options, but I have > bugs open that show the degrading of read performance from one > release over another... If we can eliminate that degradation with an mount > option... I really don't see a problem with that... > > steved. > CEPH and CIFS have the rasize mount option that sets the readahead size for that file system, so there are precedents for having this option for NFS as well.