From owner-freebsd-stable@FreeBSD.ORG Wed Aug 4 12:38:30 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 8976B1065670 for ; Wed, 4 Aug 2010 12:38:30 +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 1B1188FC1B for ; Wed, 4 Aug 2010 12:38:29 +0000 (UTC) Received: by ewy26 with SMTP id 26so2255824ewy.13 for ; Wed, 04 Aug 2010 05:38:29 -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:mime-version:content-type:content-transfer-encoding :message-id; bh=O+f+7HSp03837JJV0Ll13I85GZxB+pbFS/N/E9QQx34=; b=CmWA2dtCCU0Tq7a6FLY1nBMXU1q4ItlCU4GnGHU5VKtaMCVsib/dq1AElmq4ZtpTA6 IBuus/RYupwlyxdzEaAmb8UptAVXlb80nfKihnE/oKdZzncLC4msxBAVMHjpRfo778Ke wfanrxsfIAOl25kQORsyns59rCFbKE7UicWe8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:to:subject:date:user-agent:mime-version:content-type :content-transfer-encoding:message-id; b=pZRnsTYohA7tLyBfi6ROuoeXA8qzcZS3aSIHqPfcIctkU7kl7Cx6fBRM8rWajCaVG1 FS358i9tcouS85my5s/4zPOSquJv+ppQJcBUITy/KWMBpTv5HJQpKo2q7J3RcjbtOMDu utrqz+V2vbRfxOZPPNCSC3A6k3WWmSjkKv0Yw= Received: by 10.213.13.133 with SMTP id c5mr6599982eba.26.1280923712183; Wed, 04 Aug 2010 05:08:32 -0700 (PDT) Received: from alex.super ([91.195.101.86]) by mx.google.com with ESMTPS id v8sm12663852eeh.14.2010.08.04.05.08.29 (version=TLSv1/SSLv3 cipher=RC4-MD5); Wed, 04 Aug 2010 05:08:31 -0700 (PDT) From: "Alex V. Petrov" To: freebsd-stable@freebsd.org Date: Wed, 4 Aug 2010 20:08:24 +0800 User-Agent: KMail/1.13.5 (FreeBSD/8.1-STABLE; KDE/4.4.5; amd64; ; ) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <201008042008.25679.alexvpetrov@gmail.com> Subject: 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: Wed, 04 Aug 2010 12:38:30 -0000 Hi All! $ dd if=/dev/random of=/tank/test bs=3M count=1000 1000+0 records in 1000+0 records out 3145728000 bytes transferred in 298.153293 secs (10550707 bytes/sec) What, i think, very-very low :-( FreeBSD alex.super 8.1-STABLE FreeBSD 8.1-STABLE #76: Mon Aug 2 20:19:09 KRAST 2010 alex@alex.super:/usr/obj/usr/src/sys/ALEX amd64 real memory = 4294967296 (4096 MB) avail memory = 4098732032 (3908 MB) zpool iostat -v capacity operations bandwidth pool used avail read write read write ---------- ----- ----- ----- ----- ----- ----- tank 1,91T 829G 101 4 12,4M 148K ada4 597G 334G 31 1 3,81M 53,4K ada2 633G 295G 32 1 4,03M 51,8K ada3 727G 201G 37 1 4,59M 42,9K ---------- ----- ----- ----- ----- ----- ----- zpool status -v pool: tank state: ONLINE scrub: scrub completed after 7h12m with 0 errors on Tue Aug 3 04:54:14 2010 config: NAME STATE READ WRITE CKSUM tank ONLINE 0 0 0 ada4 ONLINE 0 0 0 ada2 ONLINE 0 0 0 ada3 ONLINE 0 0 0 errors: No known data errors zpool history History for 'tank': 2009-07-16.19:46:24 zpool create tank ad12 2009-12-13.14:58:46 zpool add tank ad8 2010-04-24.01:59:41 zpool upgrade tank 2010-05-09.02:16:34 zpool add tank ada3 2010-05-25.17:57:12 zpool scrub tank 2010-06-27.16:02:45 zpool scrub tank 2010-08-02.21:41:53 zpool scrub tank ada2 at ahcich2 bus 0 scbus2 target 0 lun 0 ada2: ATA-8 SATA 2.x device ada2: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada2: Command Queueing enabled ada2: 953869MB (1953525168 512 byte sectors: 16H 63S/T 16383C) ada3 at ahcich3 bus 0 scbus3 target 0 lun 0 ada3: ATA-8 SATA 2.x device ada3: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada3: Command Queueing enabled ada3: 953869MB (1953525168 512 byte sectors: 16H 63S/T 16383C) ada4 at ahcich4 bus 0 scbus4 target 0 lun 0 ada4: ATA-8 SATA 2.x device ada4: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada4: Command Queueing enabled smartd daily output: Checking health of /dev/ada2: OK Checking health of /dev/ada3: OK Checking health of /dev/ada4: OK /boot/loader.conf: ahci_load="YES" sem_load="YES" snd_hda_load="YES" nvidia_load="YES" linux_load="YES" wlan_xauth_load="YES" vboxdrv_load="YES" atapicam_load="YES" coretemp_load="YES" aio_load="YES" vfs.zfs.prefetch_disable=0 vfs.zfs.cache_flush_disable=1 vfs.zfs.zil_disable=1 Any ideas? ----- Alex V. Petrov