[mythtv-users] glitches in HDHR recordings every 5-6 seconds
Michael Rice
mikerice1969 at gmail.com
Wed Apr 7 21:44:44 UTC 2010
Currently using:
MythTV Version : 23548M
MythTV Branch : branches/release-0-22-fixes
Network Protocol : 50
Library API : 0.22.20091023-1
QT Version : 4.5.3
There seems to be some kind of evil IO going on every few seconds that
is causing this.
I did an experiment and started one HDHR recording. I see that top
reports a load of
about 0.12. No problem. Looking at iotop I see that mythbackend is
steadily writing
1700K/s to 2000K/s.
Next I start another HDHR recording on the second tuner. Now load
increases quickly
until it is in the 3.00-3.50 range. Looking at iotop now shows a
little higher 2000K/s to
2400 K/s. But it also show huge spikes every few seconds such at
19,000K/s to 20,000 K/s.
It looks like the first recording is being written steadily but the
second is being buffered and
written in one big burst every 5-6 seconds. Does anyone know what
might be causing this?
I've had this HDHR for a long time and this seems to only have popped
up within the last
several months.
Anyone have any ideas?
More information about the mythtv-users
mailing list