demo script for profiling middleware stack

script/benchmarks/middleware/test.rb

@@ -0,0 +1,71 @@
+require 'memory_profiler'
+require 'benchmark/ips'
+
+ENV["RAILS_ENV"] = "production"
+
+require File.expand_path("../../../../config/environment", __FILE__)
+
+def req
+  _t = "9c1a318cb72cca57daf413cc511f0993"
+
+  data = {
+    "timings[1]" => "1001",
+    "timings[2]" => "1001",
+    "timings[3]" => "1001",
+    "topic_id" => "490310"
+  }
+
+  data = data.map do |k, v|
+    "#{CGI.escape(k)}=#{v}"
+  end.join("&")
+
+  {
+    "REQUEST_METHOD" => "POST",
+    "SCRIPT_NAME" => "",
+    "PATH_INFO" => "/topics/timings.json",
+    "QUERY_STRING" => "",
+    "SERVER_NAME" => "localhost",
+    "SERVER_PORT" => "80",
+    "HTTP_CONTENT_TYPE" => "application/x-www-form-urlencoded",
+    "HTTP_VERSION" => "HTTP/1.0",
+    "HTTP_COOKIE" => "_t=#{_t}",
+    "rack.input" => StringIO.new(data),
+    "rack.version" => [1, 2],
+    "rack.url_scheme" => "http"
+  }
+end
+
+1.times do
+  s = Time.now
+  Rails.application.call(req)
+  puts(Time.now - s)
+end
+exit
+#
+#
+StackProf.run(mode: :wall, out: 'report.dump') do
+  1000.times do
+    Rails.application.call(req)
+  end
+end
+#
+# MemoryProfiler.start
+# Rails.application.call(req)
+# MemoryProfiler.stop.pretty_print
+# exit
+
+# # exit
+# exit
+
+# Benchmark.ips do |x|
+#   x.report("default") do
+#     Rails.application.call(req)
+#   end
+# end
+
+# status, headers, body = Rails.application.call(req)
+# p status
+# p headers
+# body.each do |s|
+#   p s.to_s
+# end