相关疑难解决方法(0)

我发现我的Rails代码中存在内存泄漏 - 也就是说,我发现了代码泄漏但不泄漏的原因.我把它减少到不需要Rails的测试用例:

require 'csspool'
require 'ruby-mass'

def report
    puts 'Memory ' + `ps ax -o pid,rss | grep -E "^[[:space:]]*#{$$}"`.strip.split.map(&:to_i)[1].to_s + 'KB'
    Mass.print
end

report

# note I do not store the return value here
CSSPool::CSS::Document.parse(File.new('/home/jason/big.css'))

ObjectSpace.garbage_collect
sleep 1

report

据说红宝石质量可以让我看到记忆中的所有物体.CSSPool是一个基于racc的CSS解析器./home/jason/big.css是一个1.5MB的CSS文件.

这输出:

Memory 9264KB

==================================================
 Objects within [] namespace
==================================================
  String: 7261
  RubyVM::InstructionSequence: 1151
  Array: 562
  Class: 313
  Regexp: 181
  Proc: 111
  Encoding: 99
  Gem::StubSpecification: 66
  Gem::StubSpecification::StubLine: …