> This is what I would *suspect*: > > Coming out of the GRE tunnel, your packet would have to be decapsulated by > the kernel, and then re-queued into the network bottom half. Generally, > the kernel does interrupt mitigation, and since this is a soft-interrupt, > that queue is serviced from a clock interrupt. > > As such, you'd see the values quantized to the clock interrupt, which is > exactly what I see in your diagram.
Hi. That's a worthwhile hypothesis (and not excluding ICMP software-forwarded elsewhere), but shouldn't the green (ICMP in GRE) RTT be strictly greater than the red (plain ICMP) RTT in this case? -- Denis Ovsienko _______________________________________________ Babel-users mailing list [email protected] http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/babel-users
