On 29 November 2012 20:49, Claudio Jeker <cje...@diehard.n-r-g.com> wrote: > On Thu, Nov 29, 2012 at 11:50:09AM -0500, Kenneth R Westerback wrote: >> On Thu, Nov 29, 2012 at 04:41:09PM +0100, Mike Belopuhov wrote: >> > hi, >> > >> > drivers ex age alc ale jme se vic vte xe upl and octeon/cmac >> > make use of the if_iqdrops counter that is not shown by any of our >> > tools (like netstat). looks like most of its usage comes from >> > freebsd where they show it in the "netstat -di" output in a new >> > column. do we want to do that or just convert them to if_ierrors >> > since 90% of our drivers do only if_ierrors. there's also doesn't >> > seem to be any rule when to use if_iqdrops (well, since in most >> > drivers there's no input queueing -- check out upl(4) :) >> > >> > the diff below changes all the drivers in our tree to use >> > if_ierrors instead of if_iqdrops. i've decided to leave >> > octeon/cmac driver as is because if_iqdrops is used for >> > debugging purposes there. >> > >> > ack? nack? meh? >> >> Seems like a good idea to me to not lose those errors. I have >> no great desire for a new column in netstat, but no great >> antagonism to one either. >> > > I guess the idea is to show which interfaces are overloading the input > queues. At least that is my interpretation of if_iqdrops (input queue > drops). In a away it makes sense but I'm not to attached to it. I would > prefer we would actually print out the output queue drops on the interface > queue. >
do you mean IFQ_ENQUEUE(&ifp->if_snd) drops? they're exported via sysctl_ifq and it seems like netstat has the printing code commented out.
