[ANN] AjpRails; Rails runner using AJP13

Rails
1

Hello, all.

I released AjpRails 0.1.0. AjpRails is a script for running Ruby on
Rails. Rails this script runs uses AJP13(Apache JServ Protocol 1.3)
instead of CGI or FastCGI, to cooperate with your HTTPd.

Its RubyForge project is:
http://rubyforge.org/projects/ruby-ajp/
Project home page is:
http://ruby-ajp.rubyforge.org/wiki/wiki.pl

Now, AjpRails is slower and much more unstable than dispatcher.fcgi or
SCGI Rails Runner. But these weak points will be improved gradually.

Thanks.

–
Yugui
[email protected]

2

Very interesting! So, would the idea be that one could use mod_jk (or
similar) to talk to a ruby process through a socket?

What’s the motivation for this project?

3

i am curious about this as well. Does this work with mod_jk ? Any
performance numbers on this way vs FCGI ?

4

2006/2/3, Jim N. [email protected]:

Very interesting! So, would the idea be that one could use mod_jk (or
similar) to talk to a ruby process through a socket?

Yes, you can use mod_jk on the HTTPd-side.

  • The load balancing of mod_jk is attractive.
  • mod_jk is familiar to Java programmers and even their pointy-haired
    bosses.
    So I think it is worth trying to implement AJP13 in Ruby.

I started implementing it just for fun. But now, I think Ruby’s AJP
implementation can save some programmers from the pointy-haired.

5

2006/2/3, Adam D. [email protected]:

i am curious about this as well. Does this work with mod_jk ? Any
performance numbers on this way vs FCGI ?

I tested performance numbers using the depot application of “Agile Web
Development with Rails” (“/store/index”).

== net/http ver.
The following is the results of my casual tests using net/http.

=== AJP13:
user system total real
1 thread * 1000 reqs: 0.870000 0.240000 1.110000 ( 52.369711)
10 threads * 100 reqs: 0.000000 0.010000 0.010000 ( 0.006555)
100 threads * 10 reqs: 0.040000 0.010000 0.050000 ( 0.134293)
1000 threads * 1 req: 1.670000 0.150000 1.820000 ( 6.378787)

=== FCGI(mod_fcgid)
user system total real
1 thread * 1000 reqs: 1.240000 0.170000 1.410000 ( 12.498863)
10 threads * 100 reqs: 0.000000 0.000000 0.000000 ( 0.005302)
100 threads * 10 reqs: 0.090000 0.020000 0.110000 ( 0.221380)
1000 threads * 1 req: 2.080000 0.170000 2.250000 ( 4.680722)

== Apache bench
The following is by apache bench.

=== AJP13
Concurrency Level: 100
Time taken for tests: 130.928882 seconds
Complete requests: 10000
Failed requests: 0
Write errors: 0
Total transferred: 34950000 bytes
HTML transferred: 31890000 bytes
Requests per second: 76.38 [#/sec] (mean)
Time per request: 1309.289 [ms] (mean)
Time per request: 13.093 [ms] (mean, across all concurrent
requests)
Transfer rate: 260.68 [Kbytes/sec] received

Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.4 0 5
Processing: 278 1301 77.7 1297 1887
Waiting: 277 1301 77.7 1297 1887
Total: 283 1301 77.5 1297 1891

Percentage of the requests served within a certain time (ms)
50% 1297
66% 1319
75% 1335
80% 1345
90% 1377
95% 1410
98% 1476
99% 1516
100% 1891 (longest request)

=== FCGI
Concurrency Level: 100
Time taken for tests: 29.289262 seconds
Complete requests: 10000
Failed requests: 1731
(Connect: 0, Length: 1731, Exceptions: 0)
Write errors: 0
Non-2xx responses: 8303
Total transferred: 11793228 bytes
HTML transferred: 9194509 bytes
Requests per second: 341.42 [#/sec] (mean)
Time per request: 292.893 [ms] (mean)
Time per request: 2.929 [ms] (mean, across all concurrent
requests)
Transfer rate: 393.18 [Kbytes/sec] received

Connection Times (ms)
min mean[+/-sd] median max
Connect: 0 0 0.9 0 6
Processing: 46 291 607.2 192 13346
Waiting: 45 283 555.3 192 9417
Total: 47 291 607.4 192 13346

Percentage of the requests served within a certain time (ms)
50% 192
66% 215
75% 231
80% 239
90% 277
95% 807
98% 1993
99% 4199
100% 13346 (longest request)

Hmm…, there is too many non-2xx response, is there?

–
Yugui
[email protected]