Slow loading rails environment

Question

Is it OK that loading my rails environment takes 25 seconds?

alhafoudh@xxx:~/Projects/xxx$ time ruby -r./config/environment.rb -e ""
real    0m25.320s
user    0m22.093s
sys     0m1.988s

alhafoudh@xxx:~/Projects/xxx$ ruby -v
ruby 1.9.2p0 (2010-08-18 revision 29036) [i686-linux]

alhafoudh@xxx:~/Projects/xxx$ gem list | grep rails
using rails 3.0.3

I am using also rvm

With ruby 1.8.7 (2010-04-19 patchlevel 253) [i686-linux], MBARI 0x8770, Ruby Enterprise Edition 2010.02 it takes 10 seconds, can someone explain it to me? — Ahmed Al Hafoudh, Nov 29 '10 at 15:55
It took 16 seconds for me the first time I tried, then only 4. — Vojto, Nov 29 '10 at 16:03
To answer this we'll need a lot more information about your configuration and app setup. Rails takes about 5 seconds on my MacBook Pro in a production config. — the Tin Man, Nov 29 '10 at 22:20

score 1 · Answer 1 · edited May 23 '17 at 11:48

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Update: switching recommendation per comment suggestion

No need to downgrade. One workaround for this is to preload the rails environment with rails-sh. That way only the first rails/rake command is slow and the rest are pretty fast. Wrote a fuller answer to it in this question. I use it currently with ruby 1.9.3p194 with rails 3.2.6.

edited May 23 '17 at 11:48

Community

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answered Jul 16 '12 at 16:39

yuvilio

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rrails looks fine, rails server starts very fast, but rails console does not work (hangs) and rake spec tells me "uninitialized constant FactoryGirl" There is no documentation for rrails. :( – Ahmed Al Hafoudh Jul 17 '12 at 05:27
I [inquired](https://github.com/walf443/rrails/issues/2) from the rrails project about that. Seems rrails wasn't built for console REPLs. He suggested trying the similar [rails-sh](https://github.com/jugyo/rails-sh) – yuvilio Jul 17 '12 at 12:43
Yep, after trying it out, it seems rails-sh is a better fit due to it's REPL support. – yuvilio Jul 17 '12 at 15:49

score 1 · Accepted Answer · answered Dec 05 '10 at 23:28

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I solved it with downgrating my ruby stack to ree-1.8.7 :(

answered Dec 05 '10 at 23:28

Ahmed Al Hafoudh

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score 1 · Answer 3 · answered Mar 09 '12 at 16:42

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Bundler 1.1 helps speed things up, somewhat (20-25% gains).

Otherwise, remove unnecessary gems, if any - and harp on gem authors to lazy-load their library to speed things up.

answered Mar 09 '12 at 16:42

Nevir

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score 0 · Answer 4 · answered Nov 29 '10 at 21:54

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Do you use sqlite or other client-server database engine?

Please run rails console and check whether calling reload! method is also slow...

answered Nov 29 '10 at 21:54

Nucc

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It does approx. the same times with sqlite, mysql or mysql2 gem. Reload! Is within a second. As I wrote, I tried it with ree-1.8.7 and takes 7-10 seconds. – Ahmed Al Hafoudh Nov 30 '10 at 08:15

Slow loading rails environment

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