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资源说明：Two almost identical apps in two frameworks - Ruby (Sinatra) vs PHP (Limonade).
# Ruby (Sinatra) vs PHP (Limonade) Memory Usage comparison
# UPDATE (2010-03-27)
Thanks to [binary42](http://github.com/binary42/) who pm'd me with some notes about using `ps ...` being expensive, I did
the benchmarking tests again with the memory usage checks turned off in both apps, and got widely different results:
ab -n 2000 -c 20 http://__URL__/
Ruby/Sinatra/Apache/Passenger: **603 requests/sec**
PHP/Limonade/Apache: **323.85 requests/sec**
but the big winner is:
Ruby/Sinatra/Thin(1.2.7): **1747.20** requests/sec or **1987.36** requests/sec (in production mode)
--------
## IMPORTANT ! PLEASE TAKE NOTE !
This is in **no way** intended as a pro / against either Ruby or PHP.
**SO PLEASE DON'T USE IT AS SUCH!** Thanks
-----
### Background:
I **prefer to code in Ruby / Sinatra**, and would ideally not use any other language, but sometimes reality sets in, and I have to do some website work in PHP.
While converting a fairly simple Sinatra app into PHP I realised that the memory usage was widely different.
I have therefore tried to create two almost identical simple applications in Ruby's [Sinatra](http://github.com/sinatra/sinatra) framework and in PHP's [Limonade](http://github.com/sofadesign/limonade) framework.
When running both of these apps on my Mac OS X 10.6 - system, I get these results:
* Ruby (1.8.7 p72) / Sinatra (1.0) / Apache 2 (Phusion Passenger (mod_rails/mod_rack) 2.2.11 )
### IN PRODUCTION MODE
#### Startup Memory Usage: **19.76 MB**
[~]$ ab -n 100 -c 10 http://sinatra-app.local/
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking sinatra-app.local (be patient).....done
Server Software: Apache/2.2.13
Server Hostname: sinatra-app.local
Server Port: 80
Document Path: /
Document Length: 1585 bytes
Concurrency Level: 10
Time taken for tests: 1.514 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 188200 bytes
HTML transferred: 158500 bytes
Requests per second: 66.06 [#/sec] (mean)
Time per request: 151.379 [ms] (mean)
Time per request: 15.138 [ms] (mean, across all concurrent requests)
Transfer rate: 121.41 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.2 0 1
Processing: 32 150 222.0 44 765
Waiting: 32 149 222.0 43 764
Total: 32 150 222.0 44 765
Percentage of the requests served within a certain time (ms)
50% 44
66% 52
75% 67
80% 384
90% 417
95% 750
98% 764
99% 765
100% 765 (longest request)
[~]$
### IN DEVELOPMENT MODE
#### Startup Memory Usage: **19.25 MB**
#### End of Run Memory Usage: **30.23 MB**
[~]$ ab -n 100 -c 10 http://sinatra-app.local/
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking sinatra-app.local (be patient).....done
Server Software: Apache/2.2.13
Server Hostname: sinatra-app.local
Server Port: 80
Document Path: /
Document Length: 1585 bytes
Concurrency Level: 10
Time taken for tests: 1.491 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 188200 bytes
HTML transferred: 158500 bytes
Requests per second: 67.08 [#/sec] (mean)
Time per request: 149.084 [ms] (mean)
Time per request: 14.908 [ms] (mean, across all concurrent requests)
Transfer rate: 123.28 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.3 0 3
Processing: 49 146 151.2 74 478
Waiting: 48 146 151.2 74 478
Total: 49 147 151.1 74 478
Percentage of the requests served within a certain time (ms)
50% 74
66% 92
75% 119
80% 410
90% 443
95% 458
98% 470
99% 478
100% 478 (longest request)
[~]$
* PHP (5.3.0) / Limonade (edge) / Apache 2 (Phusion Passenger (mod_rails/mod_rack) 2.2.11 )
#### Startup Memory Usage: **1.25 MB**
[~]$ ab -n 100 -c 10 http://php-app.local/
This is ApacheBench, Version 2.3 <$Revision: 655654 $>
Copyright 1996 Adam Twiss, Zeus Technology Ltd, http://www.zeustech.net/
Licensed to The Apache Software Foundation, http://www.apache.org/
Benchmarking php-app.local (be patient).....done
Server Software: Apache/2.2.13
Server Hostname: php-app.local
Server Port: 80
Document Path: /
Document Length: 1638 bytes
Concurrency Level: 10
Time taken for tests: 0.401 seconds
Complete requests: 100
Failed requests: 0
Write errors: 0
Total transferred: 211500 bytes
HTML transferred: 163800 bytes
Requests per second: 249.28 [#/sec] (mean)
Time per request: 40.116 [ms] (mean)
Time per request: 4.012 [ms] (mean, across all concurrent requests)
Transfer rate: 514.86 [Kbytes/sec] received
Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.8 0 5
Processing: 14 38 13.5 34 80
Waiting: 14 38 13.5 34 80
Total: 15 39 13.4 35 81
Percentage of the requests served within a certain time (ms)
50% 35
66% 42
75% 46
80% 49
90% 61
95% 64
98% 76
99% 81
100% 81 (longest request)
[~]$
### Why did I do this ?
The reason behind this is to hopefully find the answer to these two simple questions:
# 1. WHY IS THE MEMORY USAGE SEEMINGLY SO MUCH HIGHER IN THE Ruby (Sinatra) APP THAN IN THE PHP (Limonade) APP ??
# 2. WHY IS THE PHP (Limonade) APP 3.77 x FASTER THAN THE Ruby (Sinatra) APP ?? ANSWERED
**Answer:** slowness in Ruby/Sinatra app was **due to expensive shell-ing out action**, once removed **the Ruby/Sinatra app is almost twice as fast as the PHP app**. See update notes at top of page.
If you know the answers to these questions, or could explain things for me please do so!
### Final words.
Please do NOT use this as amunition in some infantile "PHP rocks, Ruby sucks" kind of stuff. It was created to gain a better understanding of the two programming languages and environments.
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