nstream Performance

Performance test

This is very quick performance test of various string streams. In this test we write random integer into string using C++ stream and read it back from that string with another stream and make sure that initial and resulting numbers are equal. The contestants:

• Standard std::istringstream/std::ostringstream
• boost::iostreams with sink and source described in boost::iostreams tutorial
• nova::stream with in_buffer_provider and out_buffer_provider described in sections "Writing input stream with in_buffer_provider" and "Writing output stream with out_buffer_provider" with minor change in out_buffer_provider to implement small string optimization.

Here are the result:

stream	Execution time (ms)	Compiled size (stripped)
std::stringstream	6002	8224
boost::iostreams	4567	24704
nova::stream	3890	8272

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