Webpage —PHP Administrator
4500 60
Table 8. The System Resource Usage of Entrance System
Table 8 show the system resource usage of entrance system, the total memory
usage is 20MB. The system then has 20MB free memory for Linux kernel working.
The CPU usage is over 100% that would be solved by below methods:
1. Slowdown the displaying image rate when auto recording running:
The displaying rate is 11 frames per sec, to reduce the CPU usage, the
displaying rate was slowed to 3 frames when the auto recording is running.
Cause of the displaying images to the screen is not important, when the images
were recorded. The result of above condition was 80% CPU usage which small
than 56+60.
2. PHP Administrator:
The PHP administrator is setting the family member database on the web,
and user usually sets it before the entrance system start up. User still can use the
PHP administrator when entrance system is running, but the system would
slowdown.
MP3 Broadcast Processes Mem Used (KB) CPU Used (%)
Wireless Driver
1300 < 0.1
MP3 Broadcasting
1500 < 1
Darwin Streaming Server (Web)
10MB 70
Table 9. The System Resource Usage of MP3 Broadcasting
The CPU usage of MP3 Broadcasting is small than 1%, because the WiFi
network is 11M bit per sec. that is bigger than MP3 compressing bit rate 128K or
192K. The Darwin Streaming Server include a web server, Perl script and web page,
thus it need more memory space.
The entrance system and MP3 broadcasting can provide the service in the same
time when the PHP Administrator and DSS had been executed. Thus the entrance
system can run to protect the house and the family can enjoy the WiFi entertainment
too.
75
