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

[Jarod C. Wilson]

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On Saturday 24 April 2004 00:14, Henk Poley wrote:
> Op vrijdag 23 april 2004 23:51, schreef Nathan Nottingham:
> > > 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?
>
> "checksumming speed" sounds like a synthethic benchmark to me (like, do
> everything in RAM). So probably you are running a P3 (highest number) and
> he is running a P5 (eh, Xeon? guess not... but well).
>
> Correct?

hdparm -t /dev/md[0-x] is probably a slightly better test, though still not 
100% indicative of overall performance.

- -- 
Jarod C. Wilson, RHCE

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