Comment # 26 on bug 1141444 from Dave Plater

(In reply to Manvendra Bhangui from comment #25)
> (In reply to Dave Plater from comment #24)
> > My poor laptop struggles to play songs at all with visualizations.
> 
> There are two problems with the visualization. 
> 
> 1. Continous memory allocation
> 2. The rendering is done by the software (probably this will require a
> separate bug report). Your laptop will suffering because of this. Since the
> rendering is done by clementine, the cpu utilization of clementine hits the
> roof. In the original build around > 6 months back, the rendering was
> probably done by the driver. I'm pasting top output for FC30 build and the
> top output of the opensuse clementine build. In the FC30 build, when I turn
> on the visualization, it is 'X' that starts consuming a bit more CPU. In the
> opensuse build, the utilization of 'X' doesn't change at all, but CPU
> utilization of clementine shoots up.
> 
> Top output of FC30 clementine with visualizer turned on
> -----------------------------------------------------------
> top - 13:13:49 up 26 min,  2 users,  load average: 0.72, 0.57, 0.46
> Tasks: 315 total,   3 running, 311 sleeping,   0 stopped,   1 zombie
> %Cpu(s):  8.3 us,  1.1 sy,  0.0 ni, 90.4 id,  0.0 wa,  0.0 hi,  0.2 si,  0.0
> st
> MiB Mem : 7921.395 total, 3520.688 free, 1511.516 used, 2889.191 buff/cache
> MiB Swap: 8195.996 total, 8195.996 free,    0.000 used. 6148.215 avail Mem
> 
>   PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
>  2350 root      20   0  205000  69368  41884 S 30.56 0.855   1:05.96 X
>  8991 mbhangui  20   0 2661292 217756 130312 S 26.91 2.685   0:41.83
> clementineO
> 
> Top output of opensuse clementine with visualizer turned on
> -----------------------------------------------------------
> top - 16:42:25 up  3:54,  5 users,  load average: 0.81, 0.73, 0.67
> Tasks: 318 total,   2 running, 315 sleeping,   0 stopped,   1 zombie
> %Cpu(s): 10.2 us,  2.0 sy,  0.0 ni, 77.7 id,  9.7 wa,  0.0 hi,  0.4 si,  0.0
> st
> MiB Mem : 7921.395 total,  978.055 free, 5192.641 used, 1750.699 buff/cache
> MiB Swap: 8195.996 total, 8178.984 free,   17.012 used. 2360.668 avail Mem
> 
>   PID USER      PR  NI    VIRT    RES    SHR S  %CPU  %MEM     TIME+ COMMAND
> 11298 mbhangui  20   0 6344332 3.744g 123048 R 94.37 48.40   1:05.19
> clementine
>  2350 root      20   0  229568  92216  44568 S 3.642 1.137  66:23.70 X

If clementine 1.3.1 can do it then the qt5 branch should also.
I think you should be patient with this bug, we are aware that visualizations
are a memory hog.