Question

I am using jruby-1.6.6 with rails 3.2 currently.

And I am using gem 'bootstrap-sass', '~> 2.0.1' to import twitter bootstrap as scss.

But in development mode, I start the app by jruby -S rails s, and every time I changes a little bit in the scss, and fires refresh page, it takes very long time to compile the application.css.scss, in which I import all other scss files.

the time it takes with jruby-1.6.6 and jruby-1.6.7

Started GET "/playground/dashboard" for 0:0:0:0:0:0:0:1%0 at 2012-02-29 12:30:18 +0800
Processing by PlaygroundController#index as HTML
  Parameters: {"partial"=>"dashboard"}
  Rendered playground/_dashboard.erb (1.0ms)
  Rendered playground/show.html.erb within layouts/application (2.0ms)
Compiled application.css  (11540ms)  (pid 5518)
Completed 200 OK in 11660ms (Views: 11660.0ms)

the time it takes with MRI ruby-1.9.2-p290

Started GET "/playground/dashboard" for 127.0.0.1 at 2012-02-29 12:32:53 +0800
Processing by PlaygroundController#index as HTML
  Parameters: {"partial"=>"dashboard"}
  Rendered playground/_dashboard.erb (0.0ms)
  Rendered playground/show.html.erb within layouts/application (0.5ms)
Compiled application.css  (1283ms)  (pid 5674)
Completed 200 OK in 1323ms (Views: 1323.1ms)

Is there a way that I could tweak that?

Answer 1

Just found out last evening that this is not a issue for jruby. But a issue when using jruby with bootstrap-sass.

If you are not this case, then jruby performs well even you have tons of scss being @imported in the application.css.scss