Does someone know how many tiles (maximum) the actual mapnik tileserver can deliver per minute?
Thanks - I will ask him directly.
Btw these are the munin graphs, they only tells you that it’s on average 98 pages per second, which is not equal to how much it renders.
http://munin.openstreetmap.org/openstreetmap/tile.openstreetmap.html
Here is JonB’s answer:
But now we are talking static image serving and rendering together.
It’s only about static image serving. The most of the tiles delivered through te cache of the server (12 GByte RAM) so it is very very fast. There is a second part of JonB’s answer with JonB’s ab test:
http://tile.openstreetmap.org/0/0/0.png
This is ApacheBench, Version 2.0.40-dev <$Revision: 1.146 $> apache-2.0 Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/ Copyright 2006 The Apache Software Foundation, http://www.apache.org/
Benchmarking tile.openstreetmap.org (be patient) Completed 1000 requests Completed 2000 requests Completed 3000 requests Completed 4000 requests Completed 5000 requests Completed 6000 requests Completed 7000 requests Completed 8000 requests Completed 9000 requests Finished 10000 requests
Server Software: Apache/2.2.4
Server Hostname: tile.openstreetmap.org
Server Port: 80
Document Path: /0/0/0.png
Document Length: 7896 bytes
Concurrency Level: 10
Time taken for tests: 2.97266 seconds
Complete requests: 10000
Failed requests: 0
Write errors: 0
Total transferred: 81256840 bytes
HTML transferred: 79015272 bytes
Requests per second: 4768.11 [#/sec] (mean)
Time per request: 2.097 [ms] (mean)
Time per request: 0.210 [ms] (mean, across all concurrent
requests)
Transfer rate: 37835.93 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.6 0 3
Processing: 0 1 0.8 1 21
Waiting: 0 0 0.6 0 4
Total: 0 1 1.0 2 21
Percentage of the requests served within a certain time (ms)
50% 2
66% 2
75% 2
80% 2
90% 2
95% 2
98% 2
99% 3
100% 21 (longest request)