Why is my rails app so friggin fast????

Seriously. I ditched Rails a while back (on a different provider…a respectable vps provider) because it was SOOO slow.

My app was taking forever to load up. I was using mod_rails (passenger).

Anyway, I just setup passenger on my new linode 360 (ubuntu 8.10 32bit).

The address is: http://64.22.71.122/

The "welcome to rails" starter page load friggin instantly! Granted, I'm sure there is some caching, passenger is fully loaded, etc.

But what really amazed me is when I run ab.

ab -n 10000 -c 100 http://64.22.71.122/

Server Software:        Apache/2.2.9
Server Hostname:        64.22.71.122
Server Port:            80

Document Path:          /
Document Length:        7385 bytes

Concurrency Level:      100
Time taken for tests:   2.608 seconds
Complete requests:      10000
Failed requests:        0
Write errors:           0
Total transferred:      76908435 bytes
HTML transferred:       73886925 bytes
Requests per second:    3834.83 [#/sec] (mean)
Time per request:       26.077 [ms] (mean)
Time per request:       0.261 [ms] (mean, across all concurrent requests)
Transfer rate:          28801.86 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1   2.3      1      61
Processing:     4   25  17.4     18     146
Waiting:        3   23  17.0     17     143
Total:          5   26  17.5     19     147

Percentage of the requests served within a certain time (ms)
  50%     19
  66%     23
  75%     30
  80%     34
  90%     47
  95%     54
  98%     78
  99%    110
 100%    147 (longest request)

Now, is this because of major caching or is rails/passenger really fast? LMAO.

I mean, seriously….this is flying.

Tonight, I'm going to get some more going just to see how the thing performs but I have to admit, everything about linode seems to scream too.

BTW, I'm a rails/php newbie.

cbmeeks

EDIT:

OK, I'm an idiot. After doing some reading I realized that the default welcome page is pure html from apache…which is why it is so fast.

However, now I have a real rails page rendering Hello World.

Now, ab gives me:

ab -n 10000 -c 10 http://64.22.71.122/

Server Software:        Apache/2.2.9
Server Hostname:        64.22.71.122
Server Port:            80

Document Path:          /
Document Length:        24 bytes

Concurrency Level:      10
Time taken for tests:   34.914 seconds
Complete requests:      10000
Failed requests:        0
Write errors:           0
Total transferred:      5880352 bytes
HTML transferred:       240000 bytes
Requests per second:    286.42 [#/sec] (mean)
Time per request:       34.914 [ms] (mean)
Time per request:       3.491 [ms] (mean, across all concurrent requests)
Transfer rate:          164.48 [Kbytes/sec] received

Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    1   4.4      0     110
Processing:     3   34  42.1     19     840
Waiting:        0   33  41.2     18     840
Total:          3   35  42.4     20     840

Percentage of the requests served within a certain time (ms)
  50%     20
  66%     36
  75%     47
  80%     56
  90%     82
  95%    107
  98%    147
  99%    187
 100%    840 (longest request)

Still respectable I think. Not to get into a flame war, I just wonder how Codeigniter would rate (which is what I was using).