When playing .webm files with video-output default (VDPAU) VLC ends up consuming a lot of RAM
On my Mageia x86-64 v6 system running on a Core i3 machine with the built-in Intel Graphics HD (with vdpau-va-gl upgraded to lib64vdpau-va-gl1-0.4.0-1.mga6 ), when running VLC or cvlc of either the /usr/bin one or one compiled from vlc-git-3.0 sources, then the RAM consumption of the system quickly increases while playing a .webm file and is released after I exit VLC. It doesn't happen w --novideo or in mpv or when using the XCB video-output-method. I'll attach a VLC log soon. Note that I don't see this RAM increase in the process size - only in the total memory consumption statistics of htop.
After I exit VLC the memory becomes fine. This also happens in a new UNIX user account using JWM.