Module: Memory::Profile

Defined in:
lib/memory/profile.rb

Constant Summary collapse

LOG_FILE = 
"/tmp/memory_profile.log"

Class Method Summary collapse

Class Method Details

.report ⇒ Object 



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# File 'lib/memory/profile.rb', line 9

def self.report
  Dir.chdir "/tmp"
  ObjectSpace::garbage_collect
  sleep 10 # Give the GC thread a chance
  all = []
  ObjectSpace.each_object do |obj|
    next if obj.object_id == all.object_id 
      
    all << obj
  end
  
  tally = Hash.new(0)
  max_obj = nil
  max_count = 0
  all.each do |obj|
    count = obj.memory_profile_size_of_object
    if max_count < count
      max_obj = obj
      max_count = count
    end
    
    tally[obj.class]+=count
  end
  
  open( LOG_FILE, 'a') do |outf|
    outf.puts '+'*70
    tally.keys.sort{|a,b| 
      if tally[a] == tally[b]
        a.to_s <=> b.to_s
      else
        -1*(tally[a]<=>tally[b])
      end
    }.each do |klass|
      outf.puts "#{klass}\t#{tally[klass]}"
    end
    
    outf.puts '-'*70
    outf.puts "Max obj was #{max_obj.class} at #{max_count}"
    outf.puts "Maximum object is..."
    outf.puts max_obj.memory_profile_inspect
  end
end

.simple_count ⇒ Object 



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# File 'lib/memory/profile.rb', line 52

def self.simple_count
  Dir.chdir "/tmp"
  ObjectSpace::garbage_collect
  sleep 10 # Give the GC thread a chance
  
  tally = Hash.new(0)
  ObjectSpace.each_object do |obj|
    next if obj.object_id == tally.object_id
    tally[obj.class]+=1
  end
  
  open( LOG_FILE, 'a') do |outf|
    outf.puts '='*70
    outf.puts "Memory::Profile report for #{$0}"
    outf.puts `cat /proc/#{Process.pid}/status`
    
    tally.keys.sort{|a,b| 
      if tally[a] == tally[b]
        a.to_s <=> b.to_s
      else
        -1*(tally[a]<=>tally[b])
      end
    }.each do |klass|
      outf.puts "#{klass}\t#{tally[klass]}"
    end
  end
end