From owner-freebsd-net@freebsd.org Fri Jun 26 10:29:29 2015 Return-Path: Delivered-To: freebsd-net@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 3314A98C6FC for ; Fri, 26 Jun 2015 10:29:29 +0000 (UTC) (envelope-from ml@my.gd) Received: from mail-lb0-f173.google.com (mail-lb0-f173.google.com [209.85.217.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id AE4881919 for ; Fri, 26 Jun 2015 10:29:27 +0000 (UTC) (envelope-from ml@my.gd) Received: by lbnk3 with SMTP id k3so61781954lbn.1 for ; Fri, 26 Jun 2015 03:29:20 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc:content-type; bh=np/dJQxAhK+jHTf9QbjkVCgi9IMox7qZbo5e3c8uNA4=; b=PO6nKDet6LP4kCosWgtCTv/o/yMcWXAFrD0KL57L+l+fvvLQzU78wTxJCzM1gY8wRM 0I0cHrMNaBt/+Sq2LA5q0KJ2h9jSrrCoF806K/MhEnJZTXvnfepTr7UOKjZU+gpVsYKY 2XHOLg+cQx92L4i6QHZngwMMTUNFtiFJNsCVngiLIxgbZAKRmHLKYKegPDjweS//9LMv SGPtTkEdUUvIo2OhVONfQZKY1SmQIgwjMsJrpkt6vjA6TTPo+0gXYKHgLjlw0jThGkoJ nJY2gH5RBAXQztpPUdFxKpW7UW2j+ek4Zj7Y0lwhSpfXHwSoU7wB2R3nEc7wewoNd53h mWYA== X-Gm-Message-State: ALoCoQlM/oARB1liOhCDPItsO15X+KA3voCdGiSpheKf1zjMgqqZf9sAaIKGNaN+rE342jOa4L5q MIME-Version: 1.0 X-Received: by 10.152.43.37 with SMTP id t5mr915380lal.96.1435314560107; Fri, 26 Jun 2015 03:29:20 -0700 (PDT) Received: by 10.112.42.18 with HTTP; Fri, 26 Jun 2015 03:29:20 -0700 (PDT) In-Reply-To: <20150626115943.7d0b441cda2c6cc5b817b181@aei.mpg.de> References: <20150625145238.12cf9da3b368ef0b9a30f193@aei.mpg.de> <623856025.328424.1435279751389.JavaMail.zimbra@uoguelph.ca> <20150626115943.7d0b441cda2c6cc5b817b181@aei.mpg.de> Date: Fri, 26 Jun 2015 12:29:20 +0200 Message-ID: Subject: Re: NFS on 10G interface terribly slow From: Damien Fleuriot To: =?UTF-8?B?R2Vycml0IEvDvGhu?= Cc: "freebsd-net@freebsd.org" Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Jun 2015 10:29:29 -0000 Gerrit, Everyone's talking about the network performance and to some extent NFS tuning. I would argue that given your iperf results, the network itself is not at fault. In your first post I see no information regarding the local performance of your disks, sans le NFS that is. You may want to look into that first and ensure you get good read and write results on the Solaris box, before trying to fix that which might not be at fault. Perhaps your NFS implementation is already giving you the maximum speed the disks can achieve, or close enough. You may also want to compare the results with another NFS client to the Oracle server, say, god forbid, a *nux box for example. On 26 June 2015 at 11:59, Gerrit K=C3=BChn wrote: > On Thu, 25 Jun 2015 20:49:11 -0400 (EDT) Rick Macklem > wrote about Re: NFS on 10G interface terribly slow= : > > > RM> Recent commits to stable/10 (not in 10.1) done by Alexander Motin > RM> (mav@) might help w.r.t. write performance (it avoids large writes > RM> doing synchronous writes when the wcommitsize is exceeded). If you ca= n > RM> try stable/10, that might be worth it. > > Ok, I'll schedule an update then, I guess. OTOH, Scott reported that a > similar setup is working fine for him with 10.0 and 10.1, so there is > probably not much to gain. I'll try anyway... > > RM> Otherwise, the main mount option you can try is "wcommitsize", which > RM> you probably want to make larger. > > Hm, which size would you recommend? I cannot find anything about this > setting, not even what the default value would be. Is this reflected in > some sysctl, or how can I find out what the actual value is? > > > cu > Gerrit > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" >