I am a new user of QNX RTOS.
Recently,I did a test to check whether the performance of qnet is better than that of tcp/ip stack.(My system version is 6.21).My program used qnet and tcp protocol to transfer a file(140MB) from a server to a clinet via LAN respectively.
My test result is:
- using TCP protocol can get the average rate faster than Qnet(TCP:2.5MB/s,Qnet:2.0MB/s);
- using TCP protocol,the top rate can reach almost 11MB/s,but using qnet only 7.5MB/s .
So,based on my test result,I drew the conclusion that qnet is not faster than TCP/IP stack.But a lot of people stick to the opinion that qnet is faster than TCP/IP.
I wonder if anyone else did some similar test and please told me if the result you got is the same as mine?