Forum: Ruby on Rails send_file VS. send_data (performance)

Announcement (2017-05-07): is now read-only since I unfortunately do not have the time to support and maintain the forum any more. Please see and for other Rails- und Ruby-related community platforms.
Daniel (Guest)
on 2006-04-05 15:34
Does anybody know if there is a big performance/time cost difference
between these two methods of serving a file:

------------------------------- #1

send_file "test.png", :type => 'image/png', :disposition => 'inline'

content = ''"test.png", "rb") do |f|
    f.each_line { |line| content += line }
send_data content, :type => 'image/png', :disposition => 'inline'


Are there any other methods? Can method #2 get faster by reading the
entire file in one sweep (as opposed to read line by line)?

Thanx in advance,
Daniel -. (Guest)
on 2006-04-05 15:44
(Received via mailing list)
Hi Daniel

Try the ruby profile library

You should be able to get this to show the time spent in each method.  A
simple test should show which one is faster.

This topic is locked and can not be replied to.