[mythtv-users] Bad News for me...a warning to all
Jarod C. Wilson
jcw at wilsonet.com
Sat Apr 24 03:48:19 EDT 2004
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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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