Linux - NetworkingThis forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.
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When I executed command "ping 127.0.0.1" ,the response time is about 1 ms, and I ping the network PC , the response time is about 30ms, I don't know why, is this the flaw of uclinux os? or my system question? how can I accelerate the network speed?
I thinks the resonable response time should be less than 1ms while ping network PC, while ping loopback interface, the resonable response time should less then 0.1ms.
"When I executed command "ping 127.0.0.1" ,the response time is about 1 ms, and I ping the network PC , the response time is about 30ms,"
When you ping 127.0.0.1 the event occurs entirely within your computer. When you ping the network PC you send a message across a cable to the network PC and it sends the response back across that cable. Cabkes are far slower than CPUs and memory so sending a message across a cable should be much slower than sending a message entirely within your computer.
Hi,thanks for your reply, I see the difference of ping localhost and ping network PC, but I don't know why my ucLinux response time is so long, ping network PC is about 30ms, this time is so slow, I think 1ms is the resonable time, could anybody analyse this for me ? does ucLinux progress management and network stack is so slow? or something wrong in my system?
Thanks
Anders,
Quote:
Originally Posted by jailbait
"When I executed command "ping 127.0.0.1" ,the response time is about 1 ms, and I ping the network PC , the response time is about 30ms,"
When you ping 127.0.0.1 the event occurs entirely within your computer. When you ping the network PC you send a message across a cable to the network PC and it sends the response back across that cable. Cabkes are far slower than CPUs and memory so sending a message across a cable should be much slower than sending a message entirely within your computer.
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why my uclinux ping response time is so long ???
