User`s manual

60
General performance considerations
General performance considerations
When setting up your system, it is important to consider how various settings and
situations will affect performance. Some factors affect the amount of bandwidth (the bit
rate) required, others can affect the frame rate, and some affect both. If the load on the CPU
reaches its maximum, this will also affect the frame rate.
The following factors are among the most importan
t to consider:
High image resolutions and/or lower compression
levels result in larger images.
Bandwidth affected.
Access by large numbers of Motion JPEG and/or
unicast MPEG-4 clients. Band-
width affected.
Simultaneous viewing of different streams
(resolution, compression, etc.) by dif-
ferent clients. Frame rate
and bandwidth affected.
Accessing both Motion JPEG and MPEG-4 video streams
simultaneously. Frame
rate and bandwidth affected.
Heavy usage of event settings affects the ca
mera’s CPU load. Frame rate affected.
Enabled motion detection. Frame rate
and bandwidth affected.
Heavy network utilization due to poor infrastructure. Bandwidth affected.
Viewing on poorly performing client PC’s lowers perceived performance. Frame
r
ate affected.