hdparm -T 2 times slower on F7t4

[Doncho N. Gunchev]

On Friday 2007-06-01 21:56:14 Dave Jones wrote:
> On Fri, Jun 01, 2007 at 08:25:16PM +0300, Doncho N. Gunchev wrote:
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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...
> 
> file a bug, attaching the output of dmesg (from both if possible)
> and lspci output.
> 
> thanks,
> 
> 	Dave
> 

Bug # 242123 ( https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=242123 )
I will have both FC6 and F7 on the PC just in case for the next 2-3 months.

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