User manual

Introduction : Managing VCube Essentials Resources
Page 17
System Tab
The first diagnostic tool in the Output page is the System Tab. This shows a real-time graph of the overall CPU
usage and the Memory consumption of VCube itself. The CPU display shows a graphical percentage plot of each
CPU core for use by VCube under Windows to the right and on the left an average percentage of all cores com-
bined.
CPU
In order to understand what is to be investigated while comparing the CPU consumption and the other indicators
in the diagnostic tabs, it is first necessary to understand the two extremes of the HD video file scale.
At one end of the scale is video that is encoded with a high data compression ratio and therefore uses a large
amount of CPU resources at the moment of decoding but has a very small file size and therefore a reduced bit rate
(requiring less disk performance). At the other extreme are totally uncompressed (RGB, YCrCb, YCbCr) type video
formats that require almost no CPU usage (due to the absence of decoding) but require huge amounts of disk data
throughput do to extreme bit rates.
So if your CPU is exceeding 100% while playing a certain file, the file is most likely highly data compressed or
encoded with a codec that is too CPU intensive for your system. Try increasing the Playback Buffer or use a file that
is encoded with a lower data compression ratio (higher bit rate) or encoded with a different and more efficient
codec altogether.
Output Page - System Tab