User guide

4-46
CLIPSTER Edit Tool User Guide
Measuring the Performance
Once the performance monitor and the software are prepared as de-
scribed in section “Preparing the Software and the Performance Mon-
itor” on page 4-44, you can begin the assessment of the workload:
y Start the play-out operation of the material added to the timeline
with the play button available in the control area of the Edit Tool
(see section “Controls” on page 5-11).
This will start the play-out of the video material added to the timeline
and as soon as the play-out starts, the performance monitor will start
its monitoring of the performance as well:
Figure 4-27: Healthy performance
Because the DVS system is capable of handling even high-resolution
material in real time, you usually will not encounter any problem: The
performance bars will always appear in blue and no drops should occur.
The DVS software is able to process several different image files simul-
taneously (multi-threaded I/O mode) and one bar shown in the chart
may represent several file accesses. Thus the bars may well reach the
100 % line during an operation which does not pose a problem to the
real-time operation. It simply shows that all threads of the software are
currently processing and no thread is idle.