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- Running lighttpd tests is conceptually straightforward. You start a
- server, then make requests from a remote host. There are some good
- websites/blogs that discuss properly benchmarking a webserver. We want
- to test how efficiently Graphene handles requests, not the speed of
- the network stack in the OS. So we are using very small static files.
- See the wiki page for more details.
- 7/23/13:
- To start a server in graphene,
- make start-graphene-server
- To start a server on any other platform,
- make start-native-server
- Now that your server is up and running, it is time to test it. From a
- remote host, you can use the run-apachebench.sh script to programatically submit
- requests at various loads. The usage of that script is as follows:
- ./run-apachebench.sh <ip-of-server> <port-of-server> <concurrency-level>
- The script will append the output to a file "ab.n<N>.c<C>"
- The output will look something like this:
- *** BEGIN OUTPUT ***
- This is ApacheBench, Version 2.3 <$Revision: 655654 $>
- Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
- Licensed to The Apache Software Foundation, http://www.apache.org/
- Benchmarking 130.245.153.32 (be patient)
- Server Software: lighttpd/1.4.30
- Server Hostname: 130.245.153.32
- Server Port: 8000
- Document Path: /random/100.1.html
- Document Length: 100 bytes
- Concurrency Level: 100
- Time taken for tests: 4.110 seconds
- Complete requests: 50000
- Failed requests: 0
- Write errors: 0
- Total transferred: 16650000 bytes
- HTML transferred: 5000000 bytes
- Requests per second: 12164.64 [#/sec] (mean)
- Time per request: 8.221 [ms] (mean)
- Time per request: 0.082 [ms] (mean, across all concurrent requests)
- Transfer rate: 3955.88 [Kbytes/sec] received
- Connection Times (ms)
- min mean[+/-sd] median max
- Connect: 0 0 0.0 0 1
- Processing: 1 8 8.7 7 202
- Waiting: 1 8 8.7 7 202
- Total: 2 8 8.7 8 203
- Percentage of the requests served within a certain time (ms)
- 50% 8
- 66% 8
- 75% 8
- 80% 8
- 90% 8
- 95% 8
- 98% 8
- 99% 8
- 100% 203 (longest request)
- *** END OUTPUT ***
- The number we were reporting is the transfer rate. So for this
- example, the we would report a bandwidth of 3.95588 Mbytes/second.
- NOTES:
- To run kvm and lxc, you need to set up a bridge. But you do not want
- extraneous interfaces when you are not using them, so make
- sure to bring them down before testing native linux or graphene.
- If you are within kvm or lxc, your ip will not be that of your
- host. Make sure your ip matches the ip in the conf file.
- If you have a lot of time and want to do a good job, throw out the top
- and the low numbers, and report the mean of your large sample.
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