Le dimanche 29 mai 2011 à 11:40 -0600, Dave Taht a écrit : > > > perf-top does not appear to have been ported to openwrt, and as cool > as it is, I do not know if the related performance counters exist for > mips. > > it would be darn useful though. > > All I know at the moment is that sirq is at 99% at the given > workload, > according busybox's top. > > http://www.bufferbloat.net/attachments/download/33/routertest.png > > It is mildly early to point at the driver as being the issue - it > could be the switch or something else entirely. Would iptables or qos > rules show up in sirq? >
Yes, about all this stuff is run in softirq. QOS can be a problem if high resolution kernel time services are expensive on this platform. You could try a raw routing stuff, with no QOS / iptables, just to see how much packets can be received/sent by this unit. And if it stills sucks, just do an input test only, dropping packets immediately with "iptables -I INPUT -i name -j DROP" (to check how many packets/second can be received by the driver) _______________________________________________ Bloat mailing list [email protected] https://lists.bufferbloat.net/listinfo/bloat
