[mythtv-users] random livetv stalls

[Kevin Johnson]

I would be more than happy to help.  But please know that I am a copy and
paste kind of guy.  I install all my stuff using apt-get.  (mythbuntu)  I
have never compiled before.
If there is some way of helping out without having to compile anything I
will happily do it.


On Mon, Feb 10, 2014 at 9:09 PM, Raymond Wagner <raymond at wagnerrp.com>wrote:

> On 2/10/2014 11:05 PM, Kevin Johnson wrote:
>
>> Seems I have further improved the system by reducing the hd ringbuffer
>> size on the backend down to the min of 4700.
>> I had it set much higher at around 37000.  Cant remember why i had
>> altered it.
>> I still get a pause at the top and bottom of the hour, but only about 1
>> second or less.
>>
>
> The "HD Ringbuffer" is basically just a first stage byte array into which
> data directly from the hardware capture device is written, running in a
> tight loop to prevent the hardware buffers from filling and dropping data.
> Recording data is only held there briefly before being processed and handed
> off to the file writer. The buffer defaults to around 9MB if unset, and
> under normal conditions, that buffer should remain nearly empty. The only
> time it should fill up is if the system is severely starved of CPU.
>
> If you're actually seeing a meaningful change in performance by
> manipulating that setting, and it's not just digging into swap because of
> an extra 30MB of memory used per recorder, is there any chance of getting
> you to recompile with -DREPORT_RING_STATS?
>
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