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Clean up tools/profile_requires a bit

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jeremy committed May 21, 2009
1 parent 0f1b283 commit 886eeed52e17184747b43f57282d8635614f1be3
Showing with 27 additions and 33 deletions.
  1. +27 −33 tools/profile_requires
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@@ -4,58 +4,52 @@
# tools/profile_requires activeresource/examples/simple.rb
abort 'Use REE so you can profile memory and object allocation' unless GC.respond_to?(:enable_stats)
+ENV['NO_RELOAD'] ||= '1'
+ENV['RAILS_ENV'] ||= 'development'
+
GC.enable_stats
require 'rubygems'
Gem.source_index
require 'benchmark'
-module TrackHeapGrowth
+module RequireProfiler
+ def require(file, *args) RequireProfiler.profile(file) { super } end
+ def load(file, *args) RequireProfiler.profile(file) { super } end
+
+ @depth, @stats = 0, []
class << self
- attr_accessor :indent
+ attr_accessor :depth
attr_accessor :stats
- end
- self.indent = 0
- self.stats = []
-
- def track_growth(file)
- TrackHeapGrowth.stats << [file, TrackHeapGrowth.indent]
- TrackHeapGrowth.indent += 1
- heap_before, objects_before = GC.allocated_size, ObjectSpace.allocated_objects
- result = nil
- elapsed = Benchmark.realtime { result = yield }
- heap_after, objects_after = GC.allocated_size, ObjectSpace.allocated_objects
- TrackHeapGrowth.indent -= 1
- TrackHeapGrowth.stats.pop if TrackHeapGrowth.stats.last.first == file
- TrackHeapGrowth.stats << [file, TrackHeapGrowth.indent, elapsed, heap_after - heap_before, objects_after - objects_before] if result
- result
- end
- def require(file, *args)
- track_growth(file) { super }
- end
-
- def load(file, *args)
- track_growth(file) { super }
+ def profile(file)
+ stats << [file, depth]
+ self.depth += 1
+ heap_before, objects_before = GC.allocated_size, ObjectSpace.allocated_objects
+ result = nil
+ elapsed = Benchmark.realtime { result = yield }
+ heap_after, objects_after = GC.allocated_size, ObjectSpace.allocated_objects
+ self.depth -= 1
+ stats.pop if stats.last.first == file
+ stats << [file, depth, elapsed, heap_after - heap_before, objects_after - objects_before] if result
+ result
+ end
end
end
-Object.instance_eval { include TrackHeapGrowth }
-
GC.start
before = GC.allocated_size
before_rss = `ps -o rss= -p #{Process.pid}`.to_i
before_live_objects = ObjectSpace.live_objects
path = ARGV.shift
-
if mode = ARGV.shift
require 'ruby-prof'
RubyProf.measure_mode = RubyProf.const_get(mode.upcase)
RubyProf.start
+else
+ Object.instance_eval { include RequireProfiler }
end
-ENV['NO_RELOAD'] ||= '1'
-ENV['RAILS_ENV'] ||= 'development'
elapsed = Benchmark.realtime { require path }
results = RubyProf.stop if mode
@@ -66,16 +60,16 @@ after = GC.allocated_size
usage = (after - before) / 1024.0
if mode
- File.open("profile_startup.#{mode}.tree", 'w') do |out|
+ File.open("#{File.basename(path, '.rb')}.#{mode}.callgrind", 'w') do |out|
RubyProf::CallTreePrinter.new(results).print(out)
end
end
-TrackHeapGrowth.stats.each do |file, indent, sec, bytes, objects|
+RequireProfiler.stats.each do |file, depth, sec, bytes, objects|
if sec
- puts "%10.2f KB %10d obj %8.1f ms %s%s" % [bytes / 1024.0, objects, sec * 1000, ' ' * indent, file]
+ puts "%10.2f KB %10d obj %8.1f ms %s%s" % [bytes / 1024.0, objects, sec * 1000, ' ' * depth, file]
else
- puts "#{' ' * (42 + indent)}#{file}"
+ puts "#{' ' * (42 + depth)}#{file}"
end
end
puts "%10.2f KB %10d obj %8.1f ms %d KB RSS" % [usage, after_live_objects - before_live_objects, elapsed * 1000, after_rss - before_rss]

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