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From: Wallak <wallak@free.fr>
To: Rik van Riel <riel@redhat.com>
Cc: Jan Kara <jack@suse.cz>,
	linux-kernel@vger.kernel.org, jweiner@redhat.com
Subject: Re: File copy is very slow on linux-3.4.2 (or linux-3.3x) on a specific hardware: AMD FX-8150 + 990FX (solved?)
Date: Sat, 16 Jun 2012 21:32:41 +0200	[thread overview]
Message-ID: <4FDCDF59.9020208@free.fr> (raw)
In-Reply-To: <4FDA5048.5000107@redhat.com>

Rik van Riel wrote:
> On 06/13/2012 04:37 PM, Wallak wrote:
>
>> HighTotal: 8052692 kB HighTotal: 8052692 kB
>> HighFree: 7978664 kB | HighFree: 6227412 kB
>> LowTotal: 229508 kB LowTotal: 229508 kB
>> LowFree: 195804 kB | LowFree: 148948 kB
>
> Did the BIOS remap essentially all of the low memory
> to end up above the 1GB boundary?

     May be not, but there was also a vmalloc= option on the linux 
command line; Theses options must be used with caution, and takes some 
low memory.
>
> This does not look like a system that should be run
> with a 32 bit kernel, since it only has 200MB of lowmem,
> giving you a 40:1 highmem:lowmem ratio, which is really
> too much to run well.
>
     You are right; I will try also in 64-bits mode.

                                                                         
                                         Wallak.


      reply	other threads:[~2012-06-16 19:32 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1108815600.134531433.1339443818361.JavaMail.root@zimbra44-e7.priv.proxad.net>
2012-06-11 19:54 ` File copy is very slow on linux-3.4.2 (or linux-3.3x) on a specific hardware: AMD FX-8150 + 990FX wallak
2012-06-11 20:48   ` Borislav Petkov
2012-06-11 23:19     ` Wallak
2012-06-12 16:53   ` Jan Kara
2012-06-12 18:39     ` Wallak
2012-06-12 21:09       ` Jan Kara
2012-06-12 22:41         ` Wallak
2012-06-13  6:53           ` Jan Kara
2012-06-13 20:37             ` File copy is very slow on linux-3.4.2 (or linux-3.3x) on a specific hardware: AMD FX-8150 + 990FX (solved?) Wallak
2012-06-13 22:38               ` Johannes Weiner
2012-06-14 20:16                 ` Wallak
2012-06-14 20:57               ` Rik van Riel
2012-06-16 19:32                 ` Wallak [this message]

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