hdparm -T 2 times slower on F7t4

Doncho N. Gunchev gunchev at gmail.com
Fri Jun 1 17:25:16 UTC 2007


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On Thursday 2007-05-03 13:44:18 dragoran dragoran wrote:
> On 5/3/07, Doncho N. Gunchev <gunchev at gmail.com> wrote:
> >
> > Is someone else seeing this?
> >
> > F7t4# hdparm -tT /dev/sda
> >
> > /dev/sda:
> > Timing cached reads:   2206 MB in  2.00 seconds = 1104.24 MB/sec
> > Timing buffered disk reads:  102 MB in  3.03 seconds =  33.68 MB/sec
> >
> > FC6# hdparm -tT /dev/hda
> >
> > /dev/hda:
> > Timing cached reads:   4576 MB in  2.00 seconds = 2290.99 MB/sec
> > Timing buffered disk reads:  102 MB in  3.01 seconds =  33.86 MB/sec
> >
> > Is this a real problem?
> 
> 
> the kernel has debug features enabled (see test4 release notes) they could
> be the reason for this.
> 

Hm, still the same situation with F7 final...

- -- 
Regards,
  Doncho N. Gunchev, GPG key ID: 0EF40B9E, Key server: pgp.mit.edu
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