[mythtv-users] `Mythbackend leaks memory` continued
Tom Lichti
tom at redpepperracing.com
Wed Jul 23 16:00:34 UTC 2008
Udo van den Heuvel wrote:
> Nick Morrott wrote:
>
>>> Over here the system is running quasi all the time (just three channels
>>> from one multiplex) so stuff never stops recording.
>>> That could explain the figures on my box?
>>>
>> Maybe. Even when my 2.6.16 backend is recording 3 programmes at once
>> (different multiplexes) memory usage does not continue to rise anymore
>> - so it would seem with my current system configuration (no multirec
>> yet) it is the number of concurrent recordings that influences backend
>> memory usage, not how many recordings are made during the day.
>>
>
> Can anybody confirm Nick's theory?
>
I can't confirm it, but I am seeing a leak as well. No EIT, no multi-rec
here. Over the last 8 days, I have had 47 recordings made, and the
mythbackend usage went from:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
21401 root 7 -15 234m 30m 8920 S 0 3.1 0:10.93 mythbackend
to:
21401 root 7 -15 282m 62m 10m S 0 6.3 54:18.08 mythbackend
I am taking those stats hourly. The high VIRT was 294m, and high RES was
74m, so it is cleaning up some stuff. I will try valgrind at some point
and see if I can get anything useful.
> In combination with my way of recording that could explain the figures I
> see here.
>
Perhaps. Or it's the same problem just magnified by your environment.
> On the other hand Andrew's numbers are from a different usage pattern,
> so maybe a different leak?
>
See previous statement.
Tom
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