On Thu, Apr 19, 2012 at 9:30 AM, Yonit Halperin <yhalp...@redhat.com> wrote: > The latency factor is in my TODO (see cover letter). > I use ioctl(socket, TIOCOUTQ) in order to find how many bytes are pending in > the tcp snd buffer, in addition to the size of the message. > So I calculate the bandwidth by (message_size + ioctl(socket, > TIOCOUTQ))/ack_time. > When I add the latency, it will be (message_size + ioctl(socket, TIOCOUTQ)) > / (ack_time - latency) > > This measurement can be affected by other links, but I think it is what we > want -> the actual bandwidth available for the channel.
Don't we want to measure only downlink bandwidth/conditon separately from uplink? What you suggest takes into account a lot of parameters from both side. I still fail to see what exactly it represents. Imho, it doesn't need TIOCOUTQ or latency. A top with N bytes sent "in burst" is all it takes, no? -- Marc-André Lureau _______________________________________________ Spice-devel mailing list Spice-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/spice-devel
