From owner-freebsd-stable@FreeBSD.ORG  Tue Feb 12 12:11:13 2013
Return-Path: <owner-freebsd-stable@FreeBSD.ORG>
Delivered-To: freebsd-stable@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by hub.freebsd.org (Postfix) with ESMTP id C904224B;
 Tue, 12 Feb 2013 12:11:13 +0000 (UTC)
 (envelope-from tomek.cedro@gmail.com)
Received: from mail-qa0-f49.google.com (mail-qa0-f49.google.com
 [209.85.216.49]) by mx1.freebsd.org (Postfix) with ESMTP id 66E41A2C;
 Tue, 12 Feb 2013 12:11:13 +0000 (UTC)
Received: by mail-qa0-f49.google.com with SMTP id o13so41275qaj.15
 for <multiple recipients>; Tue, 12 Feb 2013 04:11:12 -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=1vvF2AlVjSsMOPXTNd1dTp7nljms1c+qMVDxSfM63CE=;
 b=UoLt4qaLC1MrapMul7KJYiqv9tOwLdCfNBFw180k4rvqAYl6ib5+2R7eE9ViXtmI2/
 y2hcz0feA6Cup9x4A4Nj5Ymamru5/0uOCS5BOANcWy0XseFU+AUHVbnQPeaMFlsYM2o8
 idRr84rIIF5Rgp36PPQPmB0YLlx/6jvGUWggcQm7yCYMyV3Z7zYHNJcKPHfYh7U2fOFK
 qryIkM4tAZ3PDEN2Pj8X2XShs7dqeCGXaPumionE5/3NvAXLc0Ha1XLA0TghU9YROjwl
 I1O++7NcyKC1oB4XPzcO7bGa3zRcMhPhZ4Tqo/nEpxtIBaufk4vGug+JD40U5rdBN9Tg
 hSrg==
MIME-Version: 1.0
X-Received: by 10.224.177.8 with SMTP id bg8mr6813311qab.87.1360671072517;
 Tue, 12 Feb 2013 04:11:12 -0800 (PST)
Sender: tomek.cedro@gmail.com
Received: by 10.49.71.204 with HTTP; Tue, 12 Feb 2013 04:11:12 -0800 (PST)
In-Reply-To: <CAFYkXjk-k+kscQs3JZO-CHGuYwDaXBGWv-rLuuaXrewbgGVdKQ@mail.gmail.com>
References: <CAFYkXjkACs=2RaCb_BaoNT6PM+5gkQSGoKP5G4bR_284v_Eoig@mail.gmail.com>
 <CAE-m3X3KvNsb7AbQ_yRXEmyisFZ44Qdp4_xFv7HcJ+qjgJ0tQg@mail.gmail.com>
 <CAFYkXjm9Oa4T_7a=o2rkogj7CYfOPHbx6EjyucBp6phvB5WrPA@mail.gmail.com>
 <CAE-m3X0OpWxvxUv1tBYQu-XBDNw+D9UMej3p8niNJicUN8U2_w@mail.gmail.com>
 <CAFYkXjmXhPLempgUQsPynUwZizW-QShXoD1oGddT2x+FY6wN0w@mail.gmail.com>
 <CAFYkXjk-k+kscQs3JZO-CHGuYwDaXBGWv-rLuuaXrewbgGVdKQ@mail.gmail.com>
Date: Tue, 12 Feb 2013 13:11:12 +0100
X-Google-Sender-Auth: jtI0cE1Rd1ceJ7dR0cqtZe7c-a8
Message-ID: <CAFYkXjkQMsEP5kgwOv324adGAVXa6n_6L3_aGqJnrpBrWFKRsw@mail.gmail.com>
Subject: Re: 9.1 AMD64 multitasking efficiency low
From: CeDeROM <cederom@tlen.pl>
To: =?UTF-8?Q?Bernhard_Fr=C3=B6hlich?= <decke@freebsd.org>
Content-Type: text/plain; charset=UTF-8
Cc: 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 <freebsd-stable.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-stable>
List-Post: <mailto:freebsd-stable@freebsd.org>
List-Help: <mailto:freebsd-stable-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-stable>,
 <mailto:freebsd-stable-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Tue, 12 Feb 2013 12:11:13 -0000

On Mon, Feb 11, 2013 at 11:35 PM, CeDeROM <cederom@tlen.pl> wrote:
> I can work on VESA xorg driver, I can have no multimedia drivers, but
> the system performance is really important factor for me and working
> like this is really unpleasant on a pretty modern machine :-(

I made a short movie to show how bad this looks :-) After some time of
moving data from ext2 sata partition to ufs2 usb partition I have
started Xorg, the speed is a disaster, then I have shutdown the Xorg,
stopped file transfer and starter Xorg again, things were okay, then
started transfer again and things get worse and worse again...

http://youtu.be/5pLODViX3JY

Now when all of the data are back on the sata drive with UFS2 things
seems a lot better. Do you think this may be the EXT2 issue? Still
when swap starts working there is a slowdown to the whole system.

What are recommended flags to build the kernel for efficiency?

Does debug symbols in kernel can slow things down?

Any hints welcome! :-)
Tomek

-- 
CeDeROM, SQ7MHZ, http://www.tomek.cedro.info