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