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#!/usr/bin/env ruby
class Memory < Struct.new(:size, :file, :line, :function)
def location
"#{file}:#{line}"
end
end
class LocationGroup
attr_reader :location
attr_reader :memories
def initialize(location)
@location = location
@memories = []
end
def add(memory)
@memories << memory
end
def total_size
@memories.inject(0) do |sum, memory|
sum + memory.size
end
end
def average_size
total_size / @memories.size.to_f
end
def max_size
@memories.collect(&:size).max
end
def min_size
@memories.collect(&:size).min
end
end
class Statistics
def initialize
@location_groups = {}
end
def add(memory)
group = location_group(memory.location)
group.add(memory)
end
def sort_by_size
@location_groups.values.sort_by do |group|
group.total_size
end
end
private
def location_group(location)
@location_groups[location] ||= LocationGroup.new(location)
end
end
statistics = Statistics.new
ARGF.each_line do |line|
case line
when /\Aaddress\[\d+\]\[not-freed\]:\s
(?:0x)?[\da-fA-F]+\((\d+)\):\s
(.+?):(\d+):\s(\S+)/x
size = $1.to_i
file = $2
line = $3.to_i
function = $4.strip
memory = Memory.new(size, file, line, function)
statistics.add(memory)
end
end
def format_size(size)
if size < 1024
"#{size}B"
elsif size < (1024 * 1024)
"%.3fKiB" % (size / 1024.0)
elsif size < (1024 * 1024 * 1024)
"%.3fMiB" % (size / 1024.0 / 1024.0)
elsif size < (1024 * 1024 * 1024 * 1024)
"%.3fGiB" % (size / 1024.0 / 1024.0 / 1024.0)
else
"#{size}B"
end
end
puts("%10s(%10s:%10s:%10s): %s(%s)" % [
"Total",
"Average",
"Max",
"Min",
"Location",
"N allocations",
])
top_allocated_groups = statistics.sort_by_size.reverse_each.take(10)
top_allocated_groups.each do |group|
puts("%10s(%10s:%10s:%10s): %s(%d)" % [
format_size(group.total_size),
format_size(group.average_size),
format_size(group.max_size),
format_size(group.min_size),
group.location,
group.memories.size,
])
end
puts
puts("Top allocated location's details")
top_allocated_group = top_allocated_groups.first
target_memories = top_allocated_group.memories
size_width = Math.log10(target_memories.size).floor + 1
target_memories.group_by(&:size).sort_by do |size, memories|
size * memories.size
end.reverse_each do |size, memories|
total_size = memories.inject(0) {|sum, memory| sum + memory.size}
puts("%10s(%10s * %#{size_width}d): %s" % [
format_size(total_size),
format_size(size),
memories.size,
memories.first.location,
])
end
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