* object.c (Init_Object): should not remove Class#allocate.

* lib/profiler.rb: separate profiling functions, without
  trace_func and at_exit setting.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3189 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 59 insertions, 0 deletions

diff --git a/lib/profiler.rb b/lib/profiler.rb
new file mode 100644
index 0000000000..74e9b96295
--- /dev/null
+++ b/lib/profiler.rb
@@ -0,0 +1,59 @@
+module Profiler__
+  Times = if defined? Process.times then Process else Time end
+  # internal values
+  @@start = @@stack = @@map = nil
+  PROFILE_PROC = proc{|event, file, line, id, binding, klass|
+    case event
+    when "call", "c-call"
+      now = Float(Times::times[0])
+      @@stack.push [now, 0.0, id]
+    when "return", "c-return"
+      now = Float(Times::times[0])
+      tick = @@stack.pop
+      name = klass.to_s
+      if name.nil? then name = '' end
+      if klass.kind_of? Class
+	name += "#"
+      else
+	name += "."
+      end
+      name += id.id2name
+      data = @@map[name]
+      unless data
+	data = [0.0, 0.0, 0.0, name]
+	@@map[name] = data
+      end
+      data[0] += 1
+      cost = now - tick[0]
+      data[1] += cost
+      data[2] += cost - tick[1]
+      @@stack[-1][1] += cost
+    end
+  }
+module_function
+  def start_profile
+    @@start = Float(Times::times[0])
+    @@stack = [[0, 0, :toplevel], [0, 0, :dummy]]
+    @@map = {"#toplevel" => [1, 0, 0, "#toplevel"]}
+    set_trace_func PROFILE_PROC
+  end
+  def stop_profile
+    set_trace_func nil
+  end
+  def print_profile(f)
+    stop_profile
+    total = Float(Times::times[0]) - @@start
+    if total == 0 then total = 0.01 end
+    @@map["#toplevel"][1] = total
+    data = @@map.values
+    data.sort!{|a,b| b[2] <=> a[2]}
+    sum = 0
+    f.printf "  %%   cumulative   self              self     total\n"           
+    f.printf " time   seconds   seconds    calls  ms/call  ms/call  name\n"
+    for d in data
+      sum += d[2]
+      f.printf "%6.2f %8.2f  %8.2f %8d ", d[2]/total*100, sum, d[2], d[0]
+      f.printf "%8.2f %8.2f  %s\n", d[2]*1000/d[0], d[1]*1000/d[0], d[3]
+    end
+  end
+end