From: Willy Gardiol <gardiol@libero.it>
Reply-To: gardiol@libero.it
To: Michael Buesch <fsdeveloper@yahoo.de>,
       Frank Van Damme <frank.vandamme@student.kuleuven.ac.be>
Subject: Re: [2.6] system is very slow during disk access
Date: Thu, 7 Aug 2003 00:19:16 +0200
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References: <200308062052.10752.fsdeveloper@yahoo.de> <200308062129.26371.frank.vandamme@student.kuleuven.ac.be> <200308062131.46017.fsdeveloper@yahoo.de>
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Try to unmask IRQ, this should realy help... 
hdparm -u1 /dev/hda

I usually do on my disks:
hdparm -c1 -u1 -d1 -X69 /dev/hda
(note: use -X69 only for for an UDMA 100 or 133 drive)

> > Maybe you just didn't enable DMA on them. Use hdparm -v /dev/foo to find
> > out.
>
> DMA is on.
>
> root@lfs:/home/mb> hdparm -v /dev/hda
>
> /dev/hda:
>  multcount    = 16 (on)
>  IO_support   =  1 (32-bit)
>  unmaskirq    =  0 (off)
>  using_dma    =  1 (on)
>  keepsettings =  0 (off)
>  readonly     =  0 (off)
>  readahead    = 256 (on)
>  geometry     = 14244/16/63, sectors = 80418240, start = 0
>
>
> root@lfs:/home/mb> hdparm -v /dev/hdc
>
> /dev/hdc:
>  multcount    = 16 (on)
>  IO_support   =  1 (32-bit)
>  unmaskirq    =  0 (off)
>  using_dma    =  1 (on)
>  keepsettings =  0 (off)
>  readonly     =  0 (off)
>  readahead    = 256 (on)
>  geometry     = 14244/16/63, sectors = 80418240, start = 0

- -- 

! 
 Willy Gardiol - gardiol@libero.it
 gardiol.eu.org
 Use linux for your freedom.

   "La guerra non far? mai finire 
    alcuna guerra, nel migliore dei
    casi sar? stata una guerra in pi?."

      Gino Strada, Buskash?

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