[mythtv-users] Bad News for me...a warning to all

[Jarod C. Wilson]

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On Friday 23 April 2004 14:51, Nathan Nottingham wrote:
> > raid5: measuring checksumming speed
> >    8regs     :  3262.800 MB/sec
> >    32regs    :  2404.800 MB/sec
> >    pIII_sse  :  3499.200 MB/sec
> >    pII_mmx   :  5003.200 MB/sec
> >    p5_mmx    :  6418.000 MB/sec
>
> Care to give a brief run down of your setup?  My RAID 5 array is
> handicapped by having more drives than IDE buses so my numbers pale in
> comparison:
>
>    8regs     :  2034.000 MB/sec
>    32regs    :  1230.400 MB/sec
>    pIII_sse  :  2221.600 MB/sec
>    pII_mmx   :  2004.800 MB/sec
>    p5_mmx    :  1993.200 MB/sec
>
> Or maybe I'm missing something else?

Multiple driver per ATA bus will absolutely DESTROY performance. ATA is 
absolute crap when it comes to multiple devices per bus. Get a PCI ATA card 
for about $30, add it to your setup, and performance should at LEAST double.

http://www.tldp.org/HOWTO/Software-RAID-HOWTO-4.html

- -- 
Jarod C. Wilson, RHCE
jcw at wilsonet.com

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