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2017-05-12perf: add test showing exponential growth in path globbingÆvar Arnfjörð Bjarmason
Add a test showing that runtimes of the wildmatch() function used for globbing in git grow exponentially in the face of some pathological globs. This issue affects both globs matching filenames via e.g. ls-files, and globs matching refnames via e.g. for-each-ref. As noted in the test description this is a test to see whether Git suffers from the issue noted in an article Russ Cox posted today about common bugs in various glob implementations: https://research.swtch.com/glob Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>