"Your sender would therefore send bursts of 5 packets less often, and the speed would be about the same"
Why my sender only can send bursts of 5 packets less often??? i can send more than 5 packets, right? i don't understand, could you please explain? On Tue, Mar 2, 2010 at 6:16 PM, Kieran Mansley <kie...@recoil.org> wrote: > On Tue, 2010-03-02 at 17:57 +0700, PHAM ANH THIEN wrote: > > > > my goal is improving speed of send/recv, now sending speed i reach > > 1.2MBytes/s. And i recognize after 2 packets sending will receive a > > ACK so > > if i can change after 5 packets (or more) sending will receive a ACK > > then > > absolutely speed will increase? Is is my thinking correct? > > No, sadly that's not the way TCP works. You are not limited by the rate > of ACKs returned to the sender. You are most likely limited by whatever > processes received packets and generates those ACKs. If it just sent an > ACK every 5 packets that wouldn't make it magically work faster, it > would just send ACKs less often. Your sender would therefore send > bursts of 5 packets less often, and the speed would be about the same. > > > By the way, could you please tell me max speed of your lwip ? my > > system > > using is LPC2388 & FreeRTOS. > > Not usefully. Your system and setup and configuration will be different > to other peoples, and this will affect the speed greatly. > > Kieran > > > > > _______________________________________________ > lwip-users mailing list > lwip-users@nongnu.org > http://lists.nongnu.org/mailman/listinfo/lwip-users >
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