Michael Eischer bcc3bddcf4 filter: only check whether a child path could match when necessary ... When checking excludes there is no need to test whether a child path could also match the pattern, as it is by definition excluded. Previously childMayMatch was calculated but then discarded. For simple absolute paths this can account for half the time spent for checking pattern matches. name old time/op new time/op delta FilterPatterns/Relative-4 23.3ms ± 9% 21.7ms ± 6% -6.68% (p=0.004 n=10+10) FilterPatterns/Absolute-4 13.9ms ± 7% 10.0ms ± 5% -27.61% (p=0.000 n=10+10) FilterPatterns/Wildcard-4 51.4ms ± 7% 47.0ms ± 7% -8.51% (p=0.001 n=9+9) FilterPatterns/ManyNoMatch-4 551ms ± 9% 190ms ± 1% -65.41% (p=0.000 n=10+8) name old alloc/op new alloc/op delta FilterPatterns/Relative-4 3.57MB ± 0% 3.57MB ± 0% ~ (p=0.665 n=10+9) FilterPatterns/Absolute-4 3.57MB ± 0% 3.57MB ± 0% ~ (p=0.480 n=9+10) FilterPatterns/Wildcard-4 14.3MB ± 0% 14.3MB ± 0% ~ (p=0.431 n=9+10) FilterPatterns/ManyNoMatch-4 3.57MB ± 0% 3.57MB ± 0% ~ (all equal) name old allocs/op new allocs/op delta FilterPatterns/Relative-4 22.2k ± 0% 22.2k ± 0% ~ (all equal) FilterPatterns/Absolute-4 22.2k ± 0% 22.2k ± 0% ~ (all equal) FilterPatterns/Wildcard-4 88.7k ± 0% 88.7k ± 0% ~ (all equal) FilterPatterns/ManyNoMatch-4 22.2k ± 0% 22.2k ± 0% ~ (all equal)		2020-10-07 20:47:52 +02:00
..
testdata	Moves files	2017-07-23 14:19:13 +02:00
doc.go	Moves files	2017-07-23 14:19:13 +02:00
filter_test.go	filter: only check whether a child path could match when necessary	2020-10-07 20:47:52 +02:00
filter.go	filter: only check whether a child path could match when necessary	2020-10-07 20:47:52 +02:00