[smokeping-users] Smokeping performance tracking

[Fred Skrotzki]

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: smokeping-users-bounces at lists.oetiker.ch
[mailto:smokeping-users-bounces at lists.oetiker.ch] On Behalf Of Jon
Greaves
Sent: Wednesday, September 12, 2007 3:18 AM
To: smokeping-users at lists.oetiker.ch
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 


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