ruby-prof

ruby-prof

ruby-prof是比较强大的，支持cpu，内存使用，对象分配等等的性能分析，而且提供了很多友好的输出格式，不仅仅是有基于文字，html的格式，还能输出graphviz格式的dot文件。

require 'ruby-prof'

RubyProf.start
# 这里写入要进行性能剖析的代码
result = RubyProf.stop

# 选择一个Printer
printer = RubyProf::FlatPrinter.new(result)
printer.print(STDOUT)

#代码示例
require 'ruby-prof'

def perf_test
  if params[:__t]
    RubyProf.start
    yield
    result = RubyProf.stop
    printer = RubyProf::GraphPrinter.new(result)
    printer
  else
    yield
  end
end

def hi
  100_000.times { }
end

def hello
  10_000.times { }
end

RubyProf.start

hi
hello

result = RubyProf.stop
printer = RubyProf::GraphPrinter.new(result)
printer.print(STDOUT, {})

参考链接 https://ruby-china.org/topics/25959

GitHub链接 https://github.com/ruby-prof/ruby-prof