Hey guys, In a current project, I need to find out exactly how long it takes to send a 802.11 packet and how much time is spent in the following stages:
send time - time spent constructing message, including context switches and other delays and the time it takes to transfer the message to the network card. access time - delay which we experience waiting to access the transmitting channel. Normally this would include the RTS and CTS queuing signals, but for this application, I have to disable them. Is it possible that no time is spent waiting here, if I have disabled the whole CSMA scheme on the hardware level? propagation time - how long it takes to get to the receiver, once it has left our card receive time - how long it takes for the receiving network card to get the message and notify the host that it has something to read. Am I going to have to put in hardware interrupts to time these events or are such tools already available? -Sam _______________________________________________ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to "[EMAIL PROTECTED]"
