From owner-freebsd-stable@FreeBSD.ORG Tue Feb 12 13:24:15 2013 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.FreeBSD.org [8.8.178.115]) by hub.freebsd.org (Postfix) with ESMTP id 09F53E4E; Tue, 12 Feb 2013 13:24:15 +0000 (UTC) (envelope-from tomek.cedro@gmail.com) Received: from mail-qa0-f46.google.com (mail-qa0-f46.google.com [209.85.216.46]) by mx1.freebsd.org (Postfix) with ESMTP id 7C619ED0; Tue, 12 Feb 2013 13:24:14 +0000 (UTC) Received: by mail-qa0-f46.google.com with SMTP id o13so1656424qaj.12 for ; Tue, 12 Feb 2013 05:24:08 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:x-received:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:cc:content-type; bh=m7LX+RspI9zdD0bnOJqZzriRYQGH4MBMfaDpgehHabw=; b=lf+aPLmF5sSW2IpYNcwMqj7L/V9dbfb/uMYln2UC+0YGxLXtwYSxKhrdP+3L2EOot/ SidBffeqdpzmwprR/BGCCt/I3r05Q5kumS1lxgePCZn+qVGrqQHPw8XvYApVtdG+Ht2i qKBqs+EM/OjXGCDYfdgyKu+t0ZLWrqqSdefOhIe6+WEg/BbWPGWRYtjeND61C8gXObNF smH89P7TP8iqpHXykibuhdR3c+tPBzFq7fqku6YiiyrOK78nsHWf4GUbbZpmYLc3h/hX QCm8fnJV5LBrdBpJOpl0zBvQHA6Ser+WH9w9u5ITu+e2o+GHTMgfqR3xb2dyL5ZspPMd lmyw== MIME-Version: 1.0 X-Received: by 10.224.222.15 with SMTP id ie15mr7180088qab.75.1360675044593; Tue, 12 Feb 2013 05:17:24 -0800 (PST) Sender: tomek.cedro@gmail.com Received: by 10.49.71.204 with HTTP; Tue, 12 Feb 2013 05:17:24 -0800 (PST) In-Reply-To: <201302121404.28342.c47g@gmx.at> References: <201302121404.28342.c47g@gmx.at> Date: Tue, 12 Feb 2013 14:17:24 +0100 X-Google-Sender-Auth: Qg0HOAkb48fExR3XT8E52K2MqvI Message-ID: Subject: Re: 9.1 AMD64 multitasking efficiency low From: CeDeROM To: Christian Gusenbauer Content-Type: text/plain; charset=UTF-8 Cc: =?UTF-8?Q?Bernhard_Fr=C3=B6hlich?= , freebsd-emulation@freebsd.org, freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Feb 2013 13:24:15 -0000 On Tue, Feb 12, 2013 at 2:04 PM, Christian Gusenbauer wrote: > Maybe it's hardware related? I experience the same slowness as you do as soon > as I copy more than a few MB of data *on the same drive*. (...) Hello Christian :-) Thank you for your feedback! :-) There was no problem today to copy from internal ufs2 to external ufs2, but I have tried to copy back from external (ufs2) to internal (ufs2) and guess what - I got the terrible slowdown!!! Just when I hit Ctrl+C things get back to normal right away.. so the problem is with writing to the WDC SATA drive... Is it something wrong with the mass storage / ahci / sata driver? Yesterday I have switched the SATA from RAID to AHCI mode, but this seems to change nothing. Is it something wrong with the WDC drives? :-\ Internal drive: ada0 at ahcich0 bus 0 scbus0 target 0 lun 0 ada0: ATA-8 SATA 2.x device ada0: 300.000MB/s transfers (SATA 2.x, UDMA6, PIO 8192bytes) ada0: Command Queueing enabled ada0: 476940MB (976773168 512 byte sectors: 16H 63S/T 16383C) ada0: Previously was known as ad4 External drive: da0 at umass-sim0 bus 0 scbus5 target 0 lun 0 da0: Fixed Direct Access SCSI-2 device da0: 40.000MB/s transfers da0: 305245MB (625142448 512 byte sectors: 255H 63S/T 38913C) Thank you!! :-) Tomek -- CeDeROM, SQ7MHZ, http://www.tomek.cedro.info