Aliaksandr Valialkin bea39e63ec regexp: reduce mallocs in Regexp.Find* and Regexp.ReplaceAll*. ... This improves Regexp.Find* and Regexp.ReplaceAll* speed: name old time/op new time/op delta Find-4 345ns ± 1% 314ns ± 1% -8.94% (p=0.000 n=9+8) FindString-4 341ns ± 1% 308ns ± 0% -9.85% (p=0.000 n=10+9) FindSubmatch-4 440ns ± 1% 404ns ± 0% -8.27% (p=0.000 n=10+8) FindStringSubmatch-4 426ns ± 0% 387ns ± 0% -9.07% (p=0.000 n=10+9) ReplaceAll-4 1.75µs ± 1% 1.67µs ± 0% -4.45% (p=0.000 n=9+10) name old alloc/op new alloc/op delta Find-4 16.0B ± 0% 0.0B ±NaN% -100.00% (p=0.000 n=10+10) FindString-4 16.0B ± 0% 0.0B ±NaN% -100.00% (p=0.000 n=10+10) FindSubmatch-4 80.0B ± 0% 48.0B ± 0% -40.00% (p=0.000 n=10+10) FindStringSubmatch-4 64.0B ± 0% 32.0B ± 0% -50.00% (p=0.000 n=10+10) ReplaceAll-4 152B ± 0% 104B ± 0% -31.58% (p=0.000 n=10+10) name old allocs/op new allocs/op delta Find-4 1.00 ± 0% 0.00 ±NaN% -100.00% (p=0.000 n=10+10) FindString-4 1.00 ± 0% 0.00 ±NaN% -100.00% (p=0.000 n=10+10) FindSubmatch-4 2.00 ± 0% 1.00 ± 0% -50.00% (p=0.000 n=10+10) FindStringSubmatch-4 2.00 ± 0% 1.00 ± 0% -50.00% (p=0.000 n=10+10) ReplaceAll-4 8.00 ± 0% 5.00 ± 0% -37.50% (p=0.000 n=10+10) Fixes #15643 Change-Id: I594fe51172373e2adb98d1d25c76ca2cde54ff48 Reviewed-on: https://go-review.googlesource.com/23030 Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>		2016-09-06 17:04:31 +00:00
..
syntax	unicode: upgrade to version 9.0.0	2016-06-28 15:08:11 +00:00
testdata	regexp/syntax: fix factoring of common prefixes in alternations	2016-01-08 16:41:46 +00:00
all_test.go	regexp: reduce mallocs in Regexp.Find* and Regexp.ReplaceAll*.	2016-09-06 17:04:31 +00:00
backtrack.go	all: delete dead non-test code	2016-03-25 06:28:13 +00:00
example_test.go
exec2_test.go
exec_test.go	regexp: use Run for benchmark	2016-06-01 10:28:01 +00:00
exec.go	regexp: reduce mallocs in Regexp.Find* and Regexp.ReplaceAll*.	2016-09-06 17:04:31 +00:00
find_test.go
onepass_test.go	all: delete dead test code	2016-03-21 07:10:08 +00:00
onepass.go	all: remove unnecessary type conversions	2016-04-15 07:31:45 +00:00
regexp.go	regexp: reduce mallocs in Regexp.Find* and Regexp.ReplaceAll*.	2016-09-06 17:04:31 +00:00