On Fri, Dec 08, 2023 at 10:39:27AM -0300, Nícolas F. R. A. Prado wrote: > When walking directory trees, instead of looking for specific files and > running dirname to get the parent folder, traverse all folders and > ignore the ones not containing the desired files. This avoids the need > to call dirname inside the loop, which gives a big performance boost, > approximately halving run time: Running locally on a > mt8192-asurada-spherion, which reports 160 test cases, has gone from > 5.5s to 2.9s, while running remotely with an nfsroot has gone from > 13.5s to 5.5s. It's hard to be sure exactly since the runtime is a bit variable but it does look like this is running substantially faster on the test systems I have that were most affected by the slowdown, looks like approximately a quarter of the time, and all the tests that were present before seem to still be present. Tested-by: Mark Brown <broonie@xxxxxxxxxx>
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