6.1: kern.ipc.maxpipekva

[Dan Nelson]

In the last episode (Jun 17), Marc G. Fournier said:
> On Sat, 17 Jun 2006, Marc G. Fournier wrote:
> >Jun 17 16:00:03 pluto kernel: kern.ipc.maxpipekva exceeded; see tuning(7)
> >Jun 17 16:00:04 pluto kernel: kern.ipc.maxpipekva exceeded; see tuning(7)
> >
> >but I can't seem to find anything in tuning(7) about it ... so, what
> >is it and how do I monitor for it?
> 
> More on this:
> 
> # sysctl -a | grep pipekva
> kern.ipc.maxpipekva: 16777216
> kern.ipc.pipekva: 15122432
> 
> and I just rebooted the server ...
> 
> so obviously I've been living on the edge ... not sure what to increase it 
> to, since not sure what it affects, so will wait on responses ...

Try also running "sysctl kern.ipc | grep pipe", which will also tell
you how many pipes are in use, plus some other counters.  The comment
at the top of sys/kern/sys_pipe.c explains how pipes are given memory.

-- 
	Dan Nelson
	dnelson at allantgroup.com