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https://github.com/specht/champ.git
synced 2025-02-20 13:29:09 +00:00
also watch cycles per subroutine using the @cycles directive
This commit is contained in:
Michael Specht
parent
fd0f700661
commit
afebc9ec0c
193
champ.rb
193
champ.rb
@ -57,6 +57,7 @@ class Champ
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FileUtils.mkpath(@files_dir)
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@max_frames = nil
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@record_frames = true
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@cycles_per_function = {}
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args = ARGV.dup
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while args.size > 1
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item = args.shift
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@ -153,14 +154,16 @@ class Champ
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@watches.keys.sort.each do |pc|
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@watches[pc].each do |watch0|
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watch0[:components].each do |watch|
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which = watch.include?(:register) ?
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sprintf('reg,%s', watch[:register]) :
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sprintf('mem,0x%04x', watch[:address])
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io.puts sprintf('%d,0x%04x,%d,%s,%s',
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watch_index, pc,
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watch0[:post] ? 1 : 0,
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watch[:type],
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which)
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if watch.include?(:register) || watch.include?(:address)
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which = watch.include?(:register) ?
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sprintf('reg,%s', watch[:register]) :
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sprintf('mem,0x%04x', watch[:address])
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io.puts sprintf('%d,0x%04x,%d,%s,%s',
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watch_index, pc,
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watch0[:post] ? 1 : 0,
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watch[:type],
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which)
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end
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end
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@watches_for_index << watch0
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watch_index += 1
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@ -180,7 +183,7 @@ class Champ
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cycle_count = 0
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last_frame_time = 0
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frame_cycles = []
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@cycles_per_function = {}
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@total_cycles_per_function = {}
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@calls_per_function = {}
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@call_graph_counts = {}
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@max_cycle_count = 0
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@ -211,8 +214,8 @@ class Champ
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calling_function = start_pc
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unless call_stack.empty?
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calling_function = call_stack.last
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@cycles_per_function[call_stack.last] ||= 0
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@cycles_per_function[call_stack.last] += cycles - last_call_stack_cycles
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@total_cycles_per_function[call_stack.last] ||= 0
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@total_cycles_per_function[call_stack.last] += cycles - last_call_stack_cycles
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end
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@call_graph_counts[calling_function] ||= {}
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@call_graph_counts[calling_function][pc] ||= 0
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@ -222,9 +225,16 @@ class Champ
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elsif parts.first == 'rts'
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cycles = parts[1].to_i
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@max_cycle_count = cycles
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last_cycles = @total_cycles_per_function[call_stack.last] || 0
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unless call_stack.empty?
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@cycles_per_function[call_stack.last] ||= 0
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@cycles_per_function[call_stack.last] += cycles - last_call_stack_cycles
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@total_cycles_per_function[call_stack.last] ||= 0
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@total_cycles_per_function[call_stack.last] += cycles - last_call_stack_cycles
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end
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if @cycles_per_function.include?(call_stack.last)
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@cycles_per_function[call_stack.last] << {
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:call_cycles => @total_cycles_per_function[call_stack.last] - last_cycles,
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:at_cycles => cycles
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}
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end
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last_call_stack_cycles = cycles
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call_stack.pop
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@ -274,7 +284,7 @@ class Champ
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end
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end
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puts
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@cycles_per_frame = []
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(2...frame_cycles.size).each do |i|
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@cycles_per_frame << frame_cycles[i] - frame_cycles[i - 1]
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@ -343,7 +353,7 @@ class Champ
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io = StringIO.new
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@watches_for_index.each.with_index do |watch, index|
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io.puts "<div style='display: inline-block;'>"
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if @watch_values.include?(index)
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if @watch_values.include?(index) || @cycles_per_function.include?(watch[:pc])
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pixels = nil
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width = nil
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height = nil
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@ -359,28 +369,46 @@ class Champ
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[0,1,1,1,1,1,0],
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[0,0,1,1,1,0,0]
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]
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@watch_values[index].each do |item|
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normalized_item = []
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if item[:tuple].size == 1
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normalized_item << (item[:cycles] * 255 / @max_cycle_count).to_i
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end
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item[:tuple].each.with_index do |x, i|
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if watch[:components][i][:type] == 's8'
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x += 128
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elsif watch[:components][i][:type] == 'u16'
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x >>= 8
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elsif watch[:components][i][:type] == 's16'
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x = (x + 32768) >> 8
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if @watch_values.include?(index)
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@watch_values[index].each do |item|
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normalized_item = []
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if item[:tuple].size == 1
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normalized_item << (item[:cycles] * 255 / @max_cycle_count).to_i
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end
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normalized_item << x
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item[:tuple].each.with_index do |x, i|
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if watch[:components][i][:type] == 's8'
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x += 128
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elsif watch[:components][i][:type] == 'u16'
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x >>= 8
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elsif watch[:components][i][:type] == 's16'
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x = (x + 32768) >> 8
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end
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normalized_item << x
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end
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offset = normalized_item.reverse.inject(0) { |x, y| (x << 8) + y }
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histogram[offset] ||= 0
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histogram[offset] += 1
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histogram_x[normalized_item[0]] ||= 0
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histogram_x[normalized_item[0]] += 1
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histogram_y[normalized_item[1]] ||= 0
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histogram_y[normalized_item[1]] += 1
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end
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else
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max_cycle_count_for_function = @cycles_per_function[watch[:pc]].map do |x|
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x[:call_cycles]
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end.max
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@cycles_per_function[watch[:pc]].each do |entry|
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normalized_item = []
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normalized_item << (entry[:at_cycles] * 255 / @max_cycle_count).to_i
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normalized_item << (entry[:call_cycles] * 255 / max_cycle_count_for_function).to_i
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offset = normalized_item.reverse.inject(0) { |x, y| (x << 8) + y }
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histogram[offset] ||= 0
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histogram[offset] += 1
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histogram_x[normalized_item[0]] ||= 0
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histogram_x[normalized_item[0]] += 1
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histogram_y[normalized_item[1]] ||= 0
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histogram_y[normalized_item[1]] += 1
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end
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offset = normalized_item.reverse.inject(0) { |x, y| (x << 8) + y }
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histogram[offset] ||= 0
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histogram[offset] += 1
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histogram_x[normalized_item[0]] ||= 0
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histogram_x[normalized_item[0]] += 1
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histogram_y[normalized_item[1]] ||= 0
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histogram_y[normalized_item[1]] += 1
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end
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histogram_max = histogram.values.max
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@ -482,7 +510,7 @@ class Champ
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end
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end
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end
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(0..1).each do |offset|
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(0..0).each do |offset|
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component_label = component[:name]
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if component_index == 0 && watch[:components].size == 2
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print_s(pixels, width, height,
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@ -497,13 +525,18 @@ class Champ
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end
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end
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end
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label = "#{sprintf('0x%04x', watch[:pc])} / #{watch[:path]}:#{watch[:line_number]} (#{watch[:post] ? 'post' : 'pre'})"
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label = "#{sprintf('0x%04x', watch[:pc])} / #{watch[:path]}:#{watch[:line_number]}"
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if @watch_values.include?(index)
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label += " (#{watch[:post] ? 'post' : 'pre'})"
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end
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print_s(pixels, width, height, width / 2 - 3 * label.size, height - 20, label, 31)
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label = @watch_called_from_subroutine[index].map do |x|
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"#{@label_for_pc[x] || sprintf('0x%04x', x)}+#{watch[:pc] - x}"
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end.join(', ')
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label = "at #{label}"
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print_s(pixels, width, height, width / 2 - 3 * label.size, height - 10, label, 31)
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if @watch_values.include?(index)
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label = @watch_called_from_subroutine[index].map do |x|
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"#{@label_for_pc[x] || sprintf('0x%04x', x)}+#{watch[:pc] - x}"
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end.join(', ')
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label = "at #{label}"
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print_s(pixels, width, height, width / 2 - 3 * label.size, height - 10, label, 31)
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end
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if watch[:components].size == 1
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# this watch is 1D, add X axis labels for cycles
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@ -542,7 +575,7 @@ class Champ
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end
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end
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(0..1).each do |offset|
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(0..0).each do |offset|
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component_label = 'cycles'
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print_s(pixels, width, height,
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(canvas_left + canvas_width * 0.5 - component_label.size * 3 + offset).to_i,
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@ -551,6 +584,46 @@ class Champ
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end
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end
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if @cycles_per_function.include?(watch[:pc])
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max_cycle_count_for_function = @cycles_per_function[watch[:pc]].map do |x|
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x[:call_cycles]
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end.max
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# this is a subroutine cycles watch, add Y axis labels for subroutine cycles
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labels = []
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labels << [0.0, '0']
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format_str = '%d'
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divisor = 1
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if max_cycle_count_for_function >= 1e6
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format_str = '%1.1fM'
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divisor = 1e6
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elsif max_cycle_count_for_function > 1e3
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format_str = '%1.1fk'
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divisor = 1e3
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end
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# labels << [1.0, sprintf(format_str, (max_cycle_count_for_function.to_f / divisor)).sub('.0', '')]
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remaining_space = canvas_width - labels.inject(0) { |a, b| a + b.size * 6 }
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space_per_label = sprintf(format_str, (max_cycle_count_for_function.to_f / divisor)).sub('.0', '').size * 6 * 2
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max_tween_labels = remaining_space / space_per_label
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step = ((max_cycle_count_for_function / max_tween_labels).to_f / divisor).ceil
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step = 1 if step == 0 # prevent infinite loop!
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x = step
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while x < max_cycle_count_for_function / divisor
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labels << [x.to_f * divisor / max_cycle_count_for_function, sprintf(format_str, x).sub('.0', '')]
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x += step
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end
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labels.each do |label|
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s = label[1]
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y = ((1.0 - label[0]) * canvas_height).to_i + canvas_top
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print_s_r(pixels, width, height, canvas_left - 12,
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(y - s.size * (6 * (1.0 - label[0]))).to_i, s, 31)
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(-3..canvas_width).each do |x|
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pixels[y * width + (x + canvas_left)] |= 0x20
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end
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end
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end
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tr = @highlight_color[1, 2].to_i(16)
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tg = @highlight_color[3, 2].to_i(16)
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tb = @highlight_color[5, 2].to_i(16)
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@ -601,6 +674,12 @@ class Champ
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io.puts "</div>"
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end
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report.sub!('#{watches}', io.string)
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if @cycles_per_function.empty?
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report.sub!('#{cycle_watches}', '')
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else
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io = StringIO.new
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report.sub!('#{cycle_watches}', io.string)
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end
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# write cycles
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io = StringIO.new
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@ -615,16 +694,16 @@ class Champ
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io.puts "<th>Label</th>"
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io.puts "</tr>"
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io.puts "</thead>"
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cycles_sum = @cycles_per_function.values.inject(0) { |a, b| a + b }
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@cycles_per_function.keys.sort do |a, b|
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@cycles_per_function[b] <=> @cycles_per_function[a]
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cycles_sum = @total_cycles_per_function.values.inject(0) { |a, b| a + b }
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@total_cycles_per_function.keys.sort do |a, b|
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@total_cycles_per_function[b] <=> @total_cycles_per_function[a]
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end.each do |pc|
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io.puts "<tr>"
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io.puts "<td>#{sprintf('0x%04x', pc)}</td>"
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io.puts "<td style='text-align: right;'>#{@cycles_per_function[pc]}</td>"
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io.puts "<td style='text-align: right;'>#{sprintf('%1.2f%%', @cycles_per_function[pc].to_f * 100.0 / cycles_sum)}</td>"
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io.puts "<td style='text-align: right;'>#{@total_cycles_per_function[pc]}</td>"
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io.puts "<td style='text-align: right;'>#{sprintf('%1.2f%%', @total_cycles_per_function[pc].to_f * 100.0 / cycles_sum)}</td>"
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io.puts "<td style='text-align: right;'>#{@calls_per_function[pc]}</td>"
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io.puts "<td style='text-align: right;'>#{@cycles_per_function[pc] / @calls_per_function[pc]}</td>"
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io.puts "<td style='text-align: right;'>#{@total_cycles_per_function[pc] / @calls_per_function[pc]}</td>"
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io.puts "<td>#{@label_for_pc[pc]}</td>"
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io.puts "</tr>"
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@ -652,8 +731,8 @@ class Champ
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all_nodes.each do |node|
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label = @label_for_pc[node] || sprintf('0x%04x', node)
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label = "<B>#{label}</B>"
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if @calls_per_function[node] && @cycles_per_function[node]
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label += "<BR/>#{@cycles_per_function[node] / @calls_per_function[node]}"
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if @calls_per_function[node] && @total_cycles_per_function[node]
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label += "<BR/>#{@total_cycles_per_function[node] / @calls_per_function[node]}"
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end
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io.puts " _#{node} [label = <#{label}>];"
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end
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@ -751,6 +830,10 @@ class Champ
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watch = parse_champ_directive(directive, false)
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watch[:line_number] = line_number
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watch[:pc] = pc
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if watch[:subroutine_cycles]
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watch[:components].first[:name] = "#{@label_for_pc[pc] || sprintf('0x%04x', pc)} cycles"
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@cycles_per_function[pc] = []
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end
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@watches[pc] << watch
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end
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end
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@ -783,6 +866,13 @@ class Champ
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fail("Error parsing champ directive: #{original_directive}")
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end
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else
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if s == 'cycles'
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result[:subroutine_cycles] = true
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result[:components] = [
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{:subroutine_cycles => true}
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]
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return result
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end
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if s.include?('(post)')
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result[:post] = true
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s.sub!('(post)', '')
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@ -867,6 +957,7 @@ __END__
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<div style='padding-top: 0.1px;'>
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<h2>Watches</h2>
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#{watches}
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#{cycle_watches}
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</div>
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</body>
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</html>
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