Performance Evaluation of WWW-Based Conference System

Recently in Japan, the mental health care has become a very important issue because there are many people suffering from mental problems. Also, there are only few specialists and researchers to deal with these problems. Because there are very few mental healthcare specialists, it is very important to decrease their moving time. Also, it is very important to see the facial expression and talk to people for mental healthcare education, aftercare and counseling. For this reason, the video and voice are needed. But, it is not easy to use the conventional TV conference systems for general people, mental health care specialists and their students because they are not computer specialists. In order to realize a remote mental health care education, we have developed a WWW conference system. Our system can communicate between the mental health care specialists and their students. Also, our system can provide the communication between the mental health care specialists, patients and their families. In this paper, we show the performance evaluation of the proposed system. The experimental results show that the load average is affected from the frame rate, frame size and number of clients. Also, throughput is affected from the frame rate and number of clients, but not from the frame size. The proposed system has enough performance in the LAN environment but PCs need a high CPU power in order to send, receive and display the high quality live videos