[mythtv-users] How much horespower for frontend?

John Drescher drescherjm at gmail.com
Tue Sep 26 20:07:15 UTC 2006


>
>
> I got this:
> [root at mythtv ~]# hdparm -d1 /dev/hda1
>
> /dev/hda1:
> setting using_dma to 1 (on)
> HDIO_SET_DMA failed: Invalid argument
> using_dma    =  1 (on)
> [root at mythtv ~]# hdparm -tT /dev/hda1
>
> /dev/hda1:
> Timing cached reads:   608 MB in  2.00 seconds = 303.62 MB/sec
> Timing buffered disk reads:  118 MB in  3.01 seconds =  39.16 MB/sec
> [root at mythtv ~]#
> [root at mythtv ~]# hdparm -d1 /dev/hdd1
>
> /dev/hdd1:
> setting using_dma to 1 (on)
> HDIO_SET_DMA failed: Invalid argument
> using_dma    =  1 (on)
> [root at mythtv ~]# hdparm -tT /dev/hdd1
>
> /dev/hdd1:
> Timing cached reads:   596 MB in  2.00 seconds = 298.07 MB/sec
> Timing buffered disk reads:   70 MB in  3.02 seconds =  23.19 MB/sec
> [root at mythtv ~]#
>
> Can test whether it affected anything with playback yet.


Ahh (I just erased a long post because I see the problem)...

You can not use /dev/hda1 with hdparm -d you must use the drive itself.

hdparm -d1 /dev/hda


Also can you post the output of just hdparm /dev/hda

John
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