[mythtv-users] Mythbackend high cpu?

[Tom Lichti]

On Sun, Jun 17, 2012 at 2:07 PM, Tom Lichti <tom at redpepperracing.com> wrote:
> On Sun, Jun 17, 2012 at 10:25 AM, Tom Lichti <tom at redpepperracing.com> wrote:
>> Is anyone else seeing extremely high CPU usage on their backend when
>> playing back *any* content on a remote front end? I just noticed that
>> during playback, the CPU usage of my backend stays around 175-200% on
>> a 2 x Dual core AMD system. I can't imagine what it would be doing
>> other than just streaming the file, is anyone else seeing this, or can
>> explain it?
>>
>> I am on close to current master:
>>
>> MythTV Version : v0.26-pre-629-g181641a-dirty
>> MythTV Branch : master
>> Network Protocol : 75
>> Library API : 0.26.20120614-1
>> QT Version : 4.6.3
>> Options compiled in:
>>  linux profile use_hidesyms using_alsa using_oss using_backend
>> using_bindings_perl using_bindings_python using_bindings_php using_dvb
>> using_frontend using_hdhomerun using_ceton using_hdpvr using_iptv
>> using_ivtv using_joystick_menu using_libcrypto using_libdns_sd
>> using_libxml2 using_lirc using_mheg using_opengl_video using_qtwebkit
>> using_qtscript using_qtdbus using_v4l2 using_v4l1 using_x11
>> using_xrandr using_bindings_perl using_bindings_python
>> using_bindings_php using_mythtranscode using_opengl
>> using_ffmpeg_threads using_live using_mheg using_libxml2
>
> Hmmm....looks like it may have been a memory leak of some sort, I
> started getting OOM killers and lots of swapping. I'll keep an eye on
> it and see if it happens again.
>

I love talking to myself. Now with one frontend playing back and two
recordings (1 HDHR and 1 HD-PVR on a slave BE) the BE CPU is over
250%. Lots of free memory (overall system memory is 8GB), so the OOM
doesn't explain it.

Tom