[mythtv-users] Stuttering on some mpg files (PrebufferEnoughFrames)

[Ian Evans]

On Mon, Dec 23, 2013 at 5:41 AM, Stephen Worthington <
stephen_agent at jsw.gen.nz> wrote:

> On Mon, 23 Dec 2013 03:02:33 -0500, you wrote:
>
> >On Sat, Dec 21, 2013 at 9:22 PM, Ian Evans <dheianevans at gmail.com> wrote:
> >
> [snip
>


> ]>Ok...I forgot that the files in question are on an USB external drive.
> But
> >I thought I read here that some are using them for older file storage. Are
> >there any settings I should be checking to see that I'm getting the
> correct
> >data transfer speed?
>
> To see if it is the USB drive that is the problem, just try moving one
> of the problem files to a storage group that is on a SATA drive.
> MythTV checks all storage groups to find the files, so you can move
> recording files freely between storage group locations.  Use the I key
> twice and scroll down to see the file name for any recording.
>
> USB 2 drives are pretty slow, but should be fast enough to play back
> any recording as long as the drive is not busy doing something else at
> the same time.


yep, it's the USB drive. Don't know why it's giving me speeds so slow:

sudo hdparm -tT /dev/sdc1

/dev/sdc1:
 Timing cached reads:     2 MB in  2.05 seconds = 999.51 kB/sec
 Timing buffered disk reads:   4 MB in  4.10 seconds = 999.83 kB/sec
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