Quality of service adjusting method based on application categories and system thereof

A quality of service adjusting system based on a plurality of application categories, which is configured to adjust a Quality of Service (QoS) of a communication device, the quality of service adjusting system based on the application categories comprising:

• the communication device receiving a plurality of network sessions, wherein a plurality of network packets of each of the network sessions are grouped into a first packet group and a second packet group, and the communication device comprises:
• a memory configured to access a packet inspecting module;
• a processing unit electrically connected to the memory, wherein the processing unit is configured to implement a quality of service adjusting method based on the application categories comprising:
• performing a packet receiving step to drive the processing unit to receive the first packet group of each of the network sessions, wherein the second packet group is arranged after the first packet group, and each of the network packets has a packet datum;
• performing a packet analyzing step to drive the processing unit to execute the packet inspecting module, wherein the packet inspecting module analyzes a plurality of the packet data of the first packet group of each of the network sessions and classifies an application corresponding to each of the network sessions;
• and
• performing a list establishing step to drive the processing unit to establish a priority list corresponding to a plurality of the applications;
• and
• a hardware accelerator electrically connected to the processing unit and processes the network sessions, so that the network sessions passing through the communication device, wherein the hardware accelerator distributes a network bandwidth of the communication device to the second packet group of each of the network sessions according to the priority list so as to adjust the QoS of the communication device;
• wherein the second packet group of one of the network sessions corresponding to one of the applications having a higher priority has a larger network bandwidth.