> > best "simulation" is recording your real-world traffic using tcpdump and > > then use tcpreplay. but that is tricky too. > > Henning has something in saying that most of the tools aren't great, > in the end all benchmarks are artificial in some measure. Replaying > traffic is equally artificial as it's only indicative of the traffic > you recorded - which is likely to be biased towards whatever was > happening at the time on your LAN.
Also worth noting is that if you're generating traffic from a single host, you're bound by the interrupt rates that host is capable of. Generate traffic from multiple sources if you really want to gauge high load. --Matt
