[mythtv-users] IVTV 0.8.1 and PVR 500 with new Samsung tuners

Mike Lewis listemailaccount at gmail.com
Sat Dec 2 18:53:51 UTC 2006


On 12/2/06, John Drescher <drescherjm at gmail.com> wrote:
>
> > tv1 ~ # hdparm -tT /dev/md2
> >
> > /dev/md2:
> > Timing cached reads:   1184 MB in  2.01 seconds = 589.36 MB/sec
> > Timing buffered disk reads:   92 MB in  3.21 seconds =  28.62 MB/sec
> >
>
> 28.62 MB/s is very bad are you using really old disks??
>
> John

No, remember that was loaded up with 1 tuner recording and one being
viewed to simulate what would be left for the other tuner if it were
to start recording.  hdparm is sort of mystical as to where it gets
it's values, but does give us an idea.  I am using a promise SATA300
TX4 controller with 5 seagate ST3250824AS drives (250MB each and
SATA300) running in software RAID5.  Here is a non loaded hdparm
output.

tv1 mythtv # hdparm -Tt /dev/md2

/dev/md2:
 Timing cached reads:   1596 MB in  2.00 seconds = 797.50 MB/sec
 Timing buffered disk reads:  230 MB in  3.01 seconds =  76.40 MB/sec

Mike


More information about the mythtv-users mailing list