diff options
author | Yorick Peterse <yorickpeterse@gmail.com> | 2015-10-14 13:21:57 +0300 |
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committer | Yorick Peterse <yorickpeterse@gmail.com> | 2015-10-15 13:05:01 +0300 |
commit | d4832b0341643d90df8323a5564521d3bcd3abc1 (patch) | |
tree | c70346b8cb41c11191761755d4f230eefea0f5c1 /config | |
parent | 7971ed5daca4bfb1310d6458f323377391a99429 (diff) |
Added rack-lineprof for development
This can be used to measure the time (roughly) spent on a per line
basis. This can also be used to measure timings for views, for example
by adding the following to a URL:
?lineprof=app/views/projects/notes/_note
rack-lineprof is only enabled when:
1. The application runs in development mode
2. The used Ruby is MRI
3. The environment variable ENABLE_LINEPROF is set to a non-empty value
Diffstat (limited to 'config')
-rw-r--r-- | config/environments/development.rb | 2 | ||||
-rw-r--r-- | config/initializers/rack_lineprof.rb | 31 |
2 files changed, 32 insertions, 1 deletions
diff --git a/config/environments/development.rb b/config/environments/development.rb index d7d6aed1602..827a110c249 100644 --- a/config/environments/development.rb +++ b/config/environments/development.rb @@ -24,7 +24,7 @@ Gitlab::Application.configure do # Expands the lines which load the assets # config.assets.debug = true - + # Adds additional error checking when serving assets at runtime. # Checks for improperly declared sprockets dependencies. # Raises helpful error messages. diff --git a/config/initializers/rack_lineprof.rb b/config/initializers/rack_lineprof.rb new file mode 100644 index 00000000000..80d232c3d36 --- /dev/null +++ b/config/initializers/rack_lineprof.rb @@ -0,0 +1,31 @@ +# The default colors of rack-lineprof can be very hard to look at in terminals +# with darker backgrounds. This patch tweaks the colors a bit so the output is +# actually readable. +if Rails.env.development? and RUBY_ENGINE == 'ruby' and ENV['ENABLE_LINEPROF'] + Gitlab::Application.config.middleware.use(Rack::Lineprof) + + module Rack + class Lineprof + class Sample < Rack::Lineprof::Sample.superclass + def format(*) + formatted = if level == CONTEXT + sprintf " | % 3i %s", line, code + else + sprintf "% 8.1fms %5i | % 3i %s", ms, calls, line, code + end + + case level + when CRITICAL + color.red formatted + when WARNING + color.yellow formatted + when NOMINAL + color.white formatted + else # CONTEXT + formatted + end + end + end + end + end +end |