Ilya Tocar 91102bf723 runtime: use bytes.IndexByte in findnull ... bytes.IndexByte is heavily optimized. Use it in findnull. This is second attempt, similar to CL97523. In this version we never call IndexByte on region of memory, that crosses page boundary. A bit slower than CL97523, but still fast: name old time/op new time/op delta GoString-6 164ns ± 2% 118ns ± 0% -28.00% (p=0.000 n=10+6) findnull is also used in gostringnocopy, which is used in many hot spots in the runtime. Fixes #23830 Change-Id: Id843dd4f65a34309d92bdd8df229e484d26b0cb2 Reviewed-on: https://go-review.googlesource.com/98015 Run-TryBot: Ilya Tocar <ilya.tocar@intel.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>		2018-03-09 19:37:39 +00:00
..
gcc68255	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8756	cmd/link, cmd/go: delay linking of mingwex and mingw32 until very end	2016-08-31 06:30:26 +00:00
issue8828	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue9026	misc/cgo/test: fix freebsd test failure by moving test to its own package.	2014-11-03 13:41:03 -05:00
issue9400	runtime: use NOFRAME on mips and mips64	2018-02-12 21:41:32 +00:00
issue9510a	cmd/link, cmd/go, cmd/dist: use copy of libgcc.a for internal linking	2015-11-14 18:56:17 +00:00
issue9510b	cmd/link, cmd/go, cmd/dist: use copy of libgcc.a for internal linking	2015-11-14 18:56:17 +00:00
issue20266	go/build: make -I/-L options in cgo flags absolute	2017-06-13 18:36:04 +00:00
align.go	test: Add the usual Copyright notice.	2012-01-24 14:48:15 -05:00
api.go	cmd/cgo: only record typedef name for pointer to struct	2016-11-01 23:06:24 +00:00
backdoor.go	misc/cgo/test: get rid of the backdoor package	2014-12-24 00:18:21 +00:00
basic.go	runtime: use bytes.IndexByte in findnull	2018-03-09 19:37:39 +00:00
buildid_linux.go	misc/cgo/test: avoid endless loop when we can't parse notes	2018-01-11 19:55:49 +00:00
callback_c_gc.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
callback_c_gccgo.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
callback_c.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
callback.go	cmd/cgo: always use a function literal for pointer checking	2016-10-19 21:20:50 +00:00
cflags.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
cgo_linux_test.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
cgo_stubs_android_test.go	misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android	2016-06-01 22:06:51 +00:00
cgo_test.go	runtime: use bytes.IndexByte in findnull	2018-03-09 19:37:39 +00:00
cgo_thread_lock.go	misc/cgo/test: add test that gccgo fails	2016-10-13 00:03:57 +00:00
cgo_unix_test.go	runtime/cgo: retry pthread_create on EAGAIN	2016-12-05 18:46:18 +00:00
checkconst.go	cmd/cgo: preserve original call arguments when pointer checking	2016-10-21 20:46:20 +00:00
complex.go	cmd/compile, cmd/cgo: align complex{64,128} like GCC	2016-10-05 17:44:27 +00:00
cthread_unix.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
cthread_windows.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
cthread.go	misc/cgo/test,cmd/dist: enable (more) Cgo tests on iOS	2016-06-02 10:09:12 +00:00
duplicate_symbol.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
env.go	misc/cgo/test: fix go vet warnings	2015-10-13 17:53:20 +00:00
exports.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
fpvar.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
gcc68255.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
helpers.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue1222.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue1328.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue1560.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue1635.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue2462.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue3250.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue3250w.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue3261.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue3729.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue3729w.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue3741.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue3775.go	misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android	2016-06-01 22:06:51 +00:00
issue3945.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue4029.c	misc/cgo/test: get uintptr, not pointer, from dlopen	2018-02-02 18:42:10 +00:00
issue4029.go	misc/cgo/test: get uintptr, not pointer, from dlopen	2018-02-02 18:42:10 +00:00
issue4029w.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue4054a.go	cgo: process DWARF info even when debug data is used for value	2012-09-20 13:20:33 +10:00
issue4054b.go	cgo: process DWARF info even when debug data is used for value	2012-09-20 13:20:33 +10:00
issue4273.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue4273b.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue4339.c	misc/cgo/test: test of issue 4339	2013-09-11 09:56:38 -04:00
issue4339.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue4339.h	misc/cgo/test: test of issue 4339	2013-09-11 09:56:38 -04:00
issue4417.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue4857.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5227.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5242.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5337.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5337w.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5548_c.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5548.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5603.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5740.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5740a.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5740b.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue5986.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue6128.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue6390.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue6472.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue6506.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue6612.go	cmd/cgo: support floating point #define macros	2017-04-07 21:09:44 +00:00
issue6833_c.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue6833.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue6907.go	cmd/cgo: permit passing string values directly between Go and C	2017-11-15 03:36:54 +00:00
issue6907export_c.c	cmd/cgo: permit passing string values directly between Go and C	2017-11-15 03:36:54 +00:00
issue6907export.go	cmd/cgo: permit passing string values directly between Go and C	2017-11-15 03:36:54 +00:00
issue6997_linux.c	misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android	2016-06-01 22:06:51 +00:00
issue6997_linux.go	misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android	2016-06-01 22:06:51 +00:00
issue7234_test.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue7560.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue7665.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue7786.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue7978.go	misc/cgo/test: set the traceback level instead of failing the test	2017-09-13 02:53:11 +00:00
issue8092.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8148.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8331.h	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8331a.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8331b.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8428.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8441.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8517_windows.c	misc/cgo/test: add Test8517	2014-10-09 16:10:51 +11:00
issue8517_windows.go	misc/cgo/test: add Test8517	2014-10-09 16:10:51 +11:00
issue8517.go	misc/cgo/test: add Test8517	2014-10-09 16:10:51 +11:00
issue8694.go	misc/cgo/test,cmd/dist: enable (most) Cgo tests on Android	2016-06-01 22:06:51 +00:00
issue8756.go	cmd/link, cmd/go: delay linking of mingwex and mingw32 until very end	2016-08-31 06:30:26 +00:00
issue8811.c	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8811.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue8828.go	cmd/go: add '_go_' suffix to go files compiled by gccgo to avoid naming conflicts	2014-10-15 13:13:37 -07:00
issue8945.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue9026.go	misc/cgo/test: fix freebsd test failure by moving test to its own package.	2014-11-03 13:41:03 -05:00
issue9400_linux.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue9510.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue9557.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue10303.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue11925.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue12030.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue13402.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue13930.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue14838.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
issue17065.go	misc/cgo/test: add skipped test for issue 17065	2016-09-11 20:43:11 +00:00
issue17537.go	cmd/cgo: don't strip qualifiers from C void* pointer	2016-12-14 00:59:38 +00:00
issue18126.go	cmd/cgo: fix cgo checking when fetching errno value	2016-12-01 02:13:50 +00:00
issue18146.go	misc/cgo/test: pass current environment to syscall.Exec	2017-01-20 21:12:54 +00:00
issue18720.go	cmd/cgo: support niladic function-like macros	2017-08-30 18:28:58 +00:00
issue20129.go	cmd/cgo: unwrap typedef-chains before type checking	2017-06-27 23:02:34 +00:00
issue20266.go	go/build: make -I/-L options in cgo flags absolute	2017-06-13 18:36:04 +00:00
issue20369.go	cmd/cgo: support large unsigned macros	2017-05-17 14:42:29 +00:00
issue20910.c	cmd/cgo: unify cgo output for gc and gccgo	2017-08-16 21:57:56 +00:00
issue20910.go	cmd/cgo: unify cgo output for gc and gccgo	2017-08-16 21:57:56 +00:00
issue21668.go	cmd/cgo: avoid using common names for sniffing	2017-08-29 00:42:34 +00:00
issue21708.go	cmd/cgo: support large unsigned macro again	2017-09-01 00:42:21 +00:00
issue21809.go	go/printer: fix formatting of three-index slice expression	2017-10-03 16:16:30 +00:00
issue21897.go	cmd/cgo: special case C ptr types to use uintptr	2017-11-17 22:11:03 +00:00
issue21897b.go	cmd/cgo: special case C ptr types to use uintptr	2017-11-17 22:11:03 +00:00
issue22958.go	cmd/cgo: for C bitfields use only valid Go integer types	2017-12-01 23:50:23 +00:00
issue24206_generic.go	runtime: use bytes.IndexByte in findnull	2018-03-09 19:37:39 +00:00
issue24206.go	runtime: use bytes.IndexByte in findnull	2018-03-09 19:37:39 +00:00
setgid_linux.go	all: make copyright headers consistent with one space after period	2016-05-02 13:43:18 +00:00
sigaltstack.go	misc/cgo/test: fix test when using GCC 7	2017-01-20 21:12:19 +00:00
sigprocmask.c	runtime: don't always unblock all signals on dragonfly, freebsd and openbsd	2016-04-15 21:20:45 +00:00
sigprocmask.go	runtime: don't always unblock all signals on dragonfly, freebsd and openbsd	2016-04-15 21:20:45 +00:00
test22906.go	cmd/cgo: make JNI's jobject type map to uintptr in Go	2017-12-08 16:13:14 +00:00