3 ms·
Why is the transfer rate non-linear with respect to the system clock? At 100 MHz the rate is 1.38 Mbit/s and at 200 Mhz it is 65.4 Mbit/s.
by montecarl 2y ago
Why is the transfer rate non-linear with respect to the system clock? At 100 MHz the rate is 1.38 Mbit/s and at 200 Mhz it is 65.4 Mbit/s.
- vardump 2y agoMaybe a lot of CRC errors or something. Just a guess.
- rscott2049 2y agoWish I could answer that! All I can guess is that the slower processing speed creates a bottleneck in the LWIP stack somewhere...
- nyrikki 2y agoLatency kills...and Ethernet uses exponential backoff.
- crote 2y agoMore specifically TCP uses exponential backoff. Ethernet will happily keep drowning you in packages at line rate, if I'm not mistaken.
- daymanstep 2y agoCSMA/CD does use exponential back off, though I'm not sure if anyone is still using it.
- fach 2y agoThis is only for half-duplex ethernet communication so no one apart from some archaic systems.
- ryan-c 2y agoLike WiFi?
- edward28 2y agoCSMA/CA but close.
- pantalaimon 2y agoThere is also 10Base-T1 which is a rather recent addition.
- KennyBlanken 2y ago> Ethernet will happily keep drowning you in packages at line rate, if I'm not mistaken. It's a physical layer, so yeah, of course it will.