On Tue, Sep 04, 2018 at 03:27:29PM +0200, Solene Rapenne wrote: > Stuart Henderson <[email protected]> wrote: > > On 2018/09/04 14:22, Solene Rapenne wrote: > > > About munin I'm trying to get a diff accepted upstream to fix cpu plugin > > > and > > > talk about this with kirby@. The cpu plugin uses sysctl kern.cp_time. > > > While > > > it's not related, I prefer to announce it here so people don't waste time > > > fixing it again by looking at the thread :) > > > > Ah nice. When I worked on the initial munin port with mk I had intended > > to try to get upstream to take the openbsd plugins separately (rather > > than the current "copy similar OS and patch" approach), but I got fed up > > with rrdtool performance on OpenBSD and stopped using munin before I got > > round to it.. (and then I started using librenms and got fed up with > > rrdtool performance once again ;) > > Using rrdcached the performances are really good. But that certainly depend on > the number of systems. It may not scale well with more than 50 systems, this > is > also highly dependent on the number of plugins on each systems (as 1 value = 1 > rrd file).
Seconded, rrdcached really helps a lot until you have waaayyy too many rrds, and then switch to a real tsdb (hint: influxdb is in ports)
