[mythtv] ringbuffer.cpp

[Jonas Arndt]

On 02/19/2014 02:42 PM, Jean-Yves Avenard wrote:
> Hi
>
> Le jeudi 20 février 2014, Jonas Arndt <jonas.arndt at thearndtfamily.com 
> <mailto:jonas.arndt at thearndtfamily.com>> a écrit :
>
>
>
>
>     Understood. So in the NFS scenario we discussed in another email
>     it needs to also go on the front-end. Right now I removed the NFS
>     mount (including the /data1/Recordings directory on the front-end)
>     to see how this patch works for my friend.
>     _______________________________________________
>
>
> In theory yes, the issue would affect the frontend there too as, as 
> far the frontend is concerned, the files are local.
>
> Having said that, using NFS on the frontend clearly improved the 
> situation for me, and for a while I thought it was going to be my 
> accepted work around
>
>
My friend reported another freeze today. The front-end
Feb 19 17:54:51 zbox mythfrontend.real: mythfrontend[1634]: I Decoder 
ringbuffer.cpp:1098 (WaitForAvail) 
RingBuf(myth://192.168.1.9:6543/2655_20140220004933.mpg): Waited 4.0 
seconds for data #012#011#011#011to become available... 16792 < 32768
Feb 19 17:54:51 zbox mythfrontend.real: mythfrontend[1634]: I Decoder 
ringbuffer.cpp:1098 (WaitForAvail) 
RingBuf(myth://192.168.1.9:6543/2655_20140220004933.mpg): Waited 4.0 
seconds for data #012#011#011#011to become available... 16792 < 32768
Feb 19 17:54:51 zbox mythfrontend.real: mythfrontend[1634]: N 
CoreContext mythplayer.cpp:2130 (PrebufferEnoughFrames) Player(0): 
Waited 4289ms for video buffers AAAAfAALAfAAAA
Feb 19 17:54:51 zbox mythfrontend.real: mythfrontend[1634]: N 
CoreContext mythplayer.cpp:2130 (PrebufferEnoughFrames) Player(0): 
Waited 4391ms for video buffers AAAAfAALAfAAAA
Feb 19 17:54:51 zbox mythfrontend.real: mythfrontend[1634]: N 
CoreContext mythplayer.cpp:2130 (PrebufferEnoughFrames) Player(0): 
Waited 4492ms for video buffers AAAAfAALAfAAAA
Feb 19 17:54:52 zbox mythfrontend.real: mythfrontend[1634]: N 
CoreContext mythplayer.cpp:2130 (PrebufferEnoughFrames) Player(0): 
Waited 4593ms for video buffers AAAAfAALAfAAAA
Feb 19 17:54:52 zbox mythfrontend.real: mythfrontend[1634]: N 
CoreContext mythplayer.cpp:2130 (PrebufferEnoughFrames) Player(0): 
Waited 4695ms for video buffers AAAAfAALAfAAAA
................
Feb 19 17:55:00 zbox mythfrontend.real: mythfrontend[1634]: N 
CoreContext mythplayer.cpp:2130 (PrebufferEnoughFrames) Player(0): 
Waited 13228ms for video buffers AAAAfAALAfAAAA
Feb 19 17:55:00 zbox mythfrontend.real: mythfrontend[1634]: I Decoder 
ringbuffer.cpp:1098 (WaitForAvail) 
RingBuf(myth://192.168.1.9:6543/2655_20140220004933.mpg): Waited 13.2 
seconds for data #012#011#011#011to become available... 16792 < 32768
Feb 19 17:55:52  mythfrontend.real: last message repeated 2 times
Feb 19 17:57:21 zbox mythfrontend.real: mythfrontend[1634]: I 
CoreContext tv_play.cpp:2201 (HandleStateChange) TV: Attempting to 
change from WatchingLiveTV to None


Then on the backend
Feb 19 17:54:45 howarddvr mythbackend: mythbackend[22423]: I 
ProcessRequest ringbuffer.cpp:1114 (WaitForAvail) 
RingBuf(/data1/Recordings/2655_20140220004933.mpg): Waited 1.0 seconds 
for data #012#011#011#011to become available... 246168 < 360448 
thread:139843287852800
Feb 19 17:54:46 howarddvr mythbackend: mythbackend[22423]: I 
ProcessRequest ringbuffer.cpp:1114 (WaitForAvail) 
RingBuf(/data1/Recordings/2655_20140220004933.mpg): Waited 2.0 seconds 
for data #012#011#011#011to become available... 246168 < 360448 
thread:139843287852800
Feb 19 17:57:21 howarddvr mythbackend: mythbackend[22423]: I TVRecEvent 
tv_rec.cpp:1050 (HandleStateChange) TVRec[5]: Changing from 
WatchingLiveTV to None

What's interesting here is that there is nothing really spectacular 
going on on the backend. Just the regular "Waited 2.0 second..." which 
my front-end has no problem surviving.
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