From owner-freebsd-stable@FreeBSD.ORG Thu Aug 5 03:44:01 2010 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 773C3106567B for ; Thu, 5 Aug 2010 03:44:01 +0000 (UTC) (envelope-from alexvpetrov@gmail.com) Received: from mail-ew0-f54.google.com (mail-ew0-f54.google.com [209.85.215.54]) by mx1.freebsd.org (Postfix) with ESMTP id 022638FC17 for ; Thu, 5 Aug 2010 03:44:00 +0000 (UTC) Received: by ewy26 with SMTP id 26so2595241ewy.13 for ; Wed, 04 Aug 2010 20:44:00 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:from:to:subject:date :user-agent:references:in-reply-to:cc:mime-version:content-type :content-transfer-encoding:message-id; bh=FPSioZGNQhYBMEmKoH2lIveoVVczPQ9YMftIlDpF5a4=; b=hfzyN4AbM6ECC0UEzslmWYTe4LKr7gewJDcICn6HZHnh31wJ4Gya0o/V4UboniLshr qlEgxQyPhAWpsvvfl+if3X5Tung0icOOMCcM9hcZttF9RcLsjwUM+8Gwp/pOamqOnrrc xUAqKVn/WrZOfasgiOw2YWSHIObxr3fsgAA90= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:subject:date:user-agent:references:in-reply-to:cc :mime-version:content-type:content-transfer-encoding:message-id; b=X2zFCldmN/5YoakHw3AgRb2btOHdzeUiYWIS5/OjhVZAiV7qPgd1XkfG0eZquPD6tH gh2tPF3VHHdyQo7QncFI+toVmwZ77z5l+hA2mp0b+g2HHm+ISb8X0Uz1RKyh7JhM7tL4 QJSoWeUavykte0WX1HnP+XpSIjEEMBmLeJ64M= Received: by 10.213.25.143 with SMTP id z15mr7269685ebb.68.1280979839961; Wed, 04 Aug 2010 20:43:59 -0700 (PDT) Received: from alex.super ([91.195.101.86]) by mx.google.com with ESMTPS id v59sm13968704eeh.22.2010.08.04.20.43.57 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 04 Aug 2010 20:43:58 -0700 (PDT) From: "Alex V. Petrov" To: Joshua Boyd Date: Thu, 5 Aug 2010 11:43:54 +0800 User-Agent: KMail/1.13.5 (FreeBSD/8.1-STABLE; KDE/4.4.5; amd64; ; ) References: <201008042008.25679.alexvpetrov@gmail.com> <201008042213.31631.alexvpetrov@gmail.com> In-Reply-To: MIME-Version: 1.0 Content-Type: Text/Plain; charset="windows-1251" Content-Transfer-Encoding: quoted-printable Message-Id: <201008051143.54656.alexvpetrov@gmail.com> Cc: freebsd-stable@freebsd.org Subject: Re: zpool - low speed write X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Aug 2010 03:44:01 -0000 >=20 > What controllers are you using? >=20 > What's the results of dd if=3D/dev/ada4 of=3D/dev/null bs=3D1M count=3D10= 0 ? >=20 > Have you tried switching to the ad driver? Maybe ada is buggy on your > hardware. $ dd if=3D/dev/ada4 of=3D/dev/null bs=3D1M count=3D100 100+0 records in 100+0 records out 104857600 bytes transferred in 1.399283 secs (74936655 bytes/sec) Intel=AE ICH10=20 motherboard Gigabyte GA-EP43-DS3 (rev. 1.0) P43 / Socket 775 CPU: Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz (2335.41-MHz K8-class= =20 CPU) switch to ad I'll try later =2D---- Alex V. Petrov