linux-kernel - Re: Slowness with new pc

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Message-ID: <430c4fa50811180551r67d5d680tf1ffa493604ac4ea@mail.gmail.com>
Date:	Tue, 18 Nov 2008 11:51:30 -0200
From:	"Sergio Luis" <sergio@...ces.uece.br>
To:	"Stian Jordet" <liste@...det.net>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Slowness with new pc

On Sat, Nov 15, 2008 at 12:44 PM, Stian Jordet <liste@...det.net> wrote:
> Hi!
>
> This fall I built myself a new computer. It's a dual cpu quad core xeon
> (E5405) on a Supermicro X7DWA-N motherboard. It has 8GB 800mhz ram, and
> a Supermicro AOC-USAS-S8iR RAID SAS controller, with a pair of Fujitsu
> MBA3073RC disks in raid 0. Should be pretty fast, but it isn't. In daily
> use it feels just about the same as my old Dual P3 1ghz with a single
> SCSI disk. Has to wait a couple of seconds before the gnome menu appears
> after I've clicked on it, for instance. But with operations involving
> heavy disk use, it's extremely slow! For instance, unpacking the bzipped
> 2.6.27.6 kernel takes 6:40 minutes, while compiling it takes a mere
> 5:13. I thought I had a hardware problem (still not ruling that out), so
> I tried to install Vista, and then everything was blazingly fast. I have
> no clue where to look, but a static benchmark like hdparm gives me a
> throughput of 235MB/s on the raid 0 array. Could it be
> filesystem-related? I'm using XFS (always have)...
>
> Please cc me on any replies.
>
> Regards,
> Stian
>

Hello,
please post your config and dmesg output. It might help people try to
identify something wrong.
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