On Thu, 20 Apr 2006 22:26:14 -0700 Piet Delaney <piet@xxxxxxxxxxxx> wrote: > I'm upgrading our 2.6.12 kernel to 2.6.13, which includes significant > congestion avoidance code additions and changes. I was wondering if > there are any tools folks can recommend for testing the kernel to make > sure the congestion avoidance code is operating correctly. For > example the displaying of the congestion window as a function of time > while undergoing convergence. For causing congestion I could modify > a kernel to discard packets once in a while on a lab gateway and hit > it with iperf. HP's netperf looks interesting. > > Any suggestions? > > > -piet > 2.6.13 still had lots of problems, things didn't really get working right till 2.6.15 or later. Especially with TSO. I have a tool using kprobe's see http://developer.osdl.org/shemminger/prototypes/tcpprobe.tar.gz I try to keep it up to date with current kernel and build process, last used it on 2.6.16. - : send the line "unsubscribe linux-net" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html