JonG, there is significant performane to be gained by having sufficient cache on your box so that all active rrds stay n cache ... in rrdtool 1.3 we did some work to reduce the 'pre rrd' cache requirements ...
if rrdtool does not finisch a round of updating in time, it will say so in its logs ... cheers tobi Today Fred Skrotzki wrote: > The bottle neck I'm betting is the disk IO on the rrd files. Take a > look at using better disks/disk setup, storing the rrd files seperate > from the OS drive and swap. Raid 1, 0 or 10 will help a lot. > > ________________________________ > > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Jon > Greaves > Sent: Wednesday, September 12, 2007 3:18 AM > To: [email protected] > Subject: [smokeping-users] Smokeping performance tracking > > > > Hi Tobi, > > Just an idea for tracking how smokeping is performing could you get > smokeping to graph the time each probe takes to run. That way you should > get a good indication if you are pushing a single probe to hard. > > We have does some basic testing our setup is with 130 groups and around > 950 devices with the following results > > Setup: 20 ping every 5 mins 1 probe > Result: the machine struggled to finish 1 full probe cycle under 300 > seconds > > Setup 20 pings every 5 mins 1 probe per group (130 probes in total) > Result: waitio time hit 100% and eventually the box crashed > > Setup 10 pings every 5 mins 1 probe per group (130 probes in total) > Result: waitio time hit 100% and eventually the box crashed but took > longer than above > > Setup 10 pings every 5 mins 10 probes split across the 130 groups > Result: stable but not sure how much overhead we have (see above idea > for tracking) > > We are hoping to push the setup up to 2000+ devices monitored once we > get to that I'll post back some additional results. > > Current hardware spec > OptiPlex GX520 > Intel 1 * P4 HT 3.4gHz > 2Gb RAM > > JonG > > > The information contained in this e-mail and its attachments is > confidential. It is intended only for the named address(es) and may not > be disclosed to anyone else without Attenda's consent. > -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten http://it.oetiker.ch [EMAIL PROTECTED] ++41 62 213 9902 _______________________________________________ smokeping-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/smokeping-users
