42 lines
941 B
Ruby
42 lines
941 B
Ruby
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require_relative '../lib/oga'
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##
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# Returns memory usage in bytes. This relies on the /proc filesystem, it won't
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# work without it.
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#
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# @return [Fixnum]
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#
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def memory_usage
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return File.read('/proc/self/status').match(/VmRSS:\s+(\d+)/)[1].to_i * 1024
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end
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##
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# Reads a big XML file and returns it as a String.
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#
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# @return [String]
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#
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def read_big_xml
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return File.read(File.expand_path('../../benchmark/fixtures/big.xml', __FILE__))
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end
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##
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# Writes memory samples to a file until the thread is killed.
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#
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# @param [String] name The name of the samples file.
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# @param [Fixnum] interval The sample interval. The default is 200 ms.
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# @return [Thread]
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#
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def profile_memory(name, interval = 0.2)
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return Thread.new do
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path = File.expand_path("../samples/#{name}.txt", __FILE__)
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handle = File.open(path, 'w')
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handle.sync = true
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loop do
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handle.write("#{memory_usage}\n")
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sleep(interval)
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end
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end
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end
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