Maximum number of cameras that can be simultaneously displayed in one or more grids with the MxMC, so that
the presentation is still fluid without video jitter and
the user interface of the MxMC still reacts fast enough to user input.
Performance values have been verified with following components and settings:
MxMC 1.5
108 different P3 cameras Firmware 4.4.2.69 and following settings:
XGA, 60% JPEG-Quality, MxPEG
Image Quality „normal“
Max. exposure time = 1/30s
-> The above settings lead to an average data-rate of about 2.5 MBit/s per camera.
Result on different systems:
Mac Pro, 2x Dual-Core Intel Xeon, 2.66GHz, 5GB RAM
– Win 7 Ultimate (64bit): 45 cameras
– Mac OS X 10.7:
- OpenGL activated (=Default): 35 cameras
- OpenGL deactivated: 45 cameras
Mac Pro, 12 Core Intel Xeon E5 (Hyper-Threaded), 2.7GHz, 16GB RAM
– Win 8.1 (64bit): 120 cameras !
– Mac OS X 10.10:
- OpenGL activated (=Default): 80 cameras
- OpenGL deactivated: 120 cameras
Important to know:
Key criteria for display and number of cameras that can be displayed in parallel is the total number of frames per second, that MxMC has to decode and display.
The Selection of different codecs (M-JPEG or MxPEG) has minor influence, as in both cases always full-frames are displayed. As a result, the bottleneck using Multicore systems is the displaying part (see next point).
Decoding of the different video-streams always is executed within different threads (1 thread per stream) and therefore performed on different CPU-cores. Displaying all the decoded streams on the monitor and the processing of all User-Events is executed in the single „Main Thread“ and as such always in one single core. When using Multicore systems (as the one described above with 12 resp. 24 CPU-cores) the single CPU core performing the Main Thread leads into a bottleneck when exceeding a certain number of cameras whilst all other CPU cores may still be underutilized.
Codec setting primarily influence the resulting stream data-rate. Especially when using Mx6 cameras with M-JPEG or MxPEG with huge Motion Ratio in the scenery, a data-rate of
20 MBit/s and more can be reached easily. When using up to 50 cameras in that case the overall network data-rate may reach the 1 GByte network limit.
The memory need of MxMC with above tests using 120 cameras was about 1.2 GByte
-> As a result we recommend a system with not so many (i.e. 8) but fast CPU-cores (e.g. >= 3GHz)
Typical PC hardware that meets the requirements high CPU rate and few cores 1. For normal use up to approx. 16 cameras
Dell OptiPlex 3050 Micro Form Factor
(N002O3050MFF)
2. for higher requirements with two monitors 25 cameras per monitor
Dell OptiPlex 3050 Small Form Factor XCTO
3. requirements going beyond this and requiring up to four monitors (assuming 25 cameras per monitor with 12 fps)
HP Z2 Tower G4 Workstation
or
DELL Precision 3630 Tower
**To connect 4 Monitors you require a extra graphic card ** for example the:
Radeon™ Pro WX 4100 Graphics
When using H264 streams you have to consider that the H264 codec needs much more computer performance compared to MxPeg. This has to be taken into account when configuring the project.
12 cameras with 1280x960 are executable on a PC with the following equipment:
DELL Precision 3630 Tower
H264 hardware decoders are not supported by the MxMC.
For all medium projects where the requirement is to have a mini PC to connect three monitors and mount this behind the Monitors. This could be an alternative solution:
Ist sowas hier geeignet für die Livebildbetrachtung von 3 Cams: GEEKOM Mini Air12 Mini-PC Intel Alder Lake der 12.Generation ? Es müsste flüssig laufen, alles ausser Livebild ist entbehrlich. Danke.
Mit Windows 11 und neuer sollte das MxMC grundsätzlich kompatibel sein.
Die Rechner Performance wird für drei Kameras ausreichend sein, bei maximaler Auflösung der Kameras mit 4K Streams raten wir nur mit einem Monitor. Eine Anzeige von 4K Streams auf mehreren Monitoren wird nur bei Reduzierung der Auflösung performance bedingt laufen. (Annahme muss praktisch getestet werden.
Auflösungen mit Full HD werden in jeglicher Variante laufen (ohne Fischaugen Entzerrung).
