Set the profile=process_time query parameter to download a calltree profile of the request.
Pass the :printer option to pick a different result format.
You can cause every request to be run multiple times by passing the `:times` option to the `use Rack::Profiler` call. You can also run a given request multiple times, by setting the `profiler_runs` query parameter in the request URL.
# File lib/rack/contrib/profiler.rb, line 34 def call(env) if mode = profiling?(env) profile(env, mode) else @app.call(env) end end
Accepts a :printer => [:call_stack|:call_tree|:graph_html|:graph|:flat] option defaulting to :call_stack.
# File lib/rack/contrib/profiler.rb, line 28 def initialize(app, options = {}) @app = app @printer = parse_printer(options[:printer] || DEFAULT_PRINTER) @times = (options[:times] || 1).to_i end