On 4/28/2014 02:34, Cheng Lei wrote:
If delete default gateway ip addrss, then run the test program testRTSPClient, CPU percentage is 6%, then I add the default gateway ip by using cmd such as "route add default gw 192.168.122.1", CPU decrease to 1%. If you guys know the issue, please help, thanks.
Are the streams you're setting up via RTSP multicast, by chance? I have noticed that the Linux network stack seems to require a gateway to do multicasting correctly, even when the packets never leave the LAN.
If you absolutely cannot have a real gateway IP, try using the machine's own IP as the "gateway" address. That is usually enough to placate the routing layer of the stack.
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