This technique is useful for running things that normally run quickly, but sometimes need more time. The technique is used extensively in the GNU coreutils tes

This technique is useful for running things that normally run quickly, but sometimes need more time. The technique is used extensively in the GNU coreutils test suite, as detailed in the "performance" section at https://www.pixelbeat.org/docs/coreutils-testing.html https://www.pixelbeat.org/docs/coreutils-testing.html