Some more spiffy graphs, Sun T2000
Posted by bert hubert Mon, 14 Aug 2006 16:46:00 GMT
As previously noted, Sun is making a SunFire T2000 server available permanently for PowerDNS development, which should be good for all PowerDNS users, and probably for Sun as well. With a big PowerDNS user we are currently investigating an interaction between PowerDNS, Solaris and its Completion Ports, which may turn out not to be a PowerDNS bug. So everybody wins.
The server is arriving tomorrow at the PowerDNS offices, we hope to have it up and running shortly.
Ok, some more spiffy ‘before and after’ graphs, this time from a Solaris 10 user:
The lower graph lists the number of queries per 5 minutes. In the lowest graph, it can be seen that just before and after the maintenance period (the white bit around Mon), the number of processed queries went up substantially.
The upper graph is a plot of the load average of the server in question, which can be seen to drop visibly after this period. It is probably best to concentrate on Friday vs Wednesday. Friday, which is non-PowerDNS, did 200kqueries in 5 minutes in peak, at a load of 1.75 at peak.
The next Wednesday, we see a peak of 300kqueries in five minutes, with a load of 0.6 at peak.
If we combine these numbers, we see the efficiency (queries divided by cpu load) go up by a factor of 4. It should be noted that this is a dual CPU machine, which explains why the load can exceed 1 when running a single name server.
Thanks to Jan Gyselinck for these graphs.
