[mythtv-users] High IO activity during recording

[Gary Buhrmaster]

On Sun, Nov 30, 2014 at 4:51 PM, Thomas Börkel <thomas at boerkel.de> wrote:
....
> Is there anything in MythTV or in the kernel config, I can possibly
> configure, like IO buffer size?

A contributor to high I/O loads might be
fragmentation (either because the drive
free space is low, or because of past
activity that ended up with lots of small
extents).

For xfs, I believe you can check the
fragmentation with the command:

  xfs_db -c frag -r </dev/whatever>

And, of course, check the log files
and the smart values to make sure
the drive is not throwing errors.