Josh Bleecher Snyder d5edbcac98 math/big: rewrite pure Go implementations to use math/bits ... While we're here, delete addWW_g and subWW_g, per the TODO. They are now obsolete. Benchmarks on amd64 with -tags=math_big_pure_go. name old time/op new time/op delta AddVV/1-8 5.24ns ± 2% 5.12ns ± 1% -2.11% (p=0.000 n=82+87) AddVV/2-8 6.44ns ± 1% 6.33ns ± 2% -1.82% (p=0.000 n=77+82) AddVV/3-8 7.89ns ± 8% 6.97ns ± 4% -11.71% (p=0.000 n=100+96) AddVV/4-8 8.60ns ± 0% 7.72ns ± 4% -10.24% (p=0.000 n=90+96) AddVV/5-8 10.3ns ± 4% 8.5ns ± 1% -17.02% (p=0.000 n=96+91) AddVV/10-8 16.2ns ± 5% 12.8ns ± 1% -21.11% (p=0.000 n=97+86) AddVV/100-8 148ns ± 1% 117ns ± 5% -21.07% (p=0.000 n=66+98) AddVV/1000-8 1.41µs ± 4% 1.13µs ± 3% -19.90% (p=0.000 n=97+97) AddVV/10000-8 14.2µs ± 5% 11.2µs ± 1% -20.82% (p=0.000 n=99+84) AddVV/100000-8 142µs ± 4% 113µs ± 4% -20.40% (p=0.000 n=91+92) SubVV/1-8 5.29ns ± 1% 5.11ns ± 0% -3.30% (p=0.000 n=87+88) SubVV/2-8 6.36ns ± 4% 6.33ns ± 2% -0.56% (p=0.002 n=98+73) SubVV/3-8 7.58ns ± 5% 6.98ns ± 4% -8.01% (p=0.000 n=97+91) SubVV/4-8 8.61ns ± 3% 7.98ns ± 2% -7.31% (p=0.000 n=95+83) SubVV/5-8 10.6ns ± 2% 8.5ns ± 1% -19.56% (p=0.000 n=79+89) SubVV/10-8 16.3ns ± 4% 12.7ns ± 1% -21.97% (p=0.000 n=98+82) SubVV/100-8 124ns ± 1% 118ns ± 1% -4.83% (p=0.000 n=85+81) SubVV/1000-8 1.14µs ± 5% 1.12µs ± 2% -1.17% (p=0.000 n=97+81) SubVV/10000-8 11.6µs ±10% 11.2µs ± 1% -3.39% (p=0.000 n=100+84) SubVV/100000-8 114µs ± 6% 114µs ± 5% ~ (p=0.396 n=83+94) AddVW/1-8 4.04ns ± 4% 4.34ns ± 4% +7.57% (p=0.000 n=96+98) AddVW/2-8 4.34ns ± 5% 4.40ns ± 5% +1.40% (p=0.000 n=99+98) AddVW/3-8 5.43ns ± 0% 5.54ns ± 2% +1.97% (p=0.000 n=85+94) AddVW/4-8 6.23ns ± 1% 6.18ns ± 2% -0.66% (p=0.000 n=77+78) AddVW/5-8 6.78ns ± 2% 6.90ns ± 4% +1.77% (p=0.000 n=80+99) AddVW/10-8 10.5ns ± 4% 9.9ns ± 1% -5.77% (p=0.000 n=97+69) AddVW/100-8 114ns ± 3% 91ns ± 0% -20.38% (p=0.000 n=98+77) AddVW/1000-8 1.12µs ± 1% 0.87µs ± 1% -22.80% (p=0.000 n=82+68) AddVW/10000-8 11.2µs ± 2% 8.5µs ± 5% -23.85% (p=0.000 n=85+100) AddVW/100000-8 112µs ± 2% 85µs ± 5% -24.22% (p=0.000 n=71+96) SubVW/1-8 4.09ns ± 2% 4.18ns ± 4% +2.32% (p=0.000 n=78+96) SubVW/2-8 4.59ns ± 5% 4.52ns ± 7% -1.54% (p=0.000 n=98+94) SubVW/3-8 5.41ns ±10% 5.55ns ± 1% +2.48% (p=0.000 n=100+89) SubVW/4-8 6.51ns ± 2% 6.19ns ± 0% -4.85% (p=0.000 n=97+81) SubVW/5-8 7.25ns ± 3% 6.90ns ± 4% -4.93% (p=0.000 n=97+96) SubVW/10-8 10.6ns ± 4% 9.8ns ± 2% -7.32% (p=0.000 n=95+96) SubVW/100-8 90.4ns ± 0% 90.8ns ± 0% +0.43% (p=0.000 n=83+78) SubVW/1000-8 853ns ± 4% 857ns ± 2% +0.42% (p=0.000 n=100+98) SubVW/10000-8 8.52µs ± 4% 8.53µs ± 2% ~ (p=0.061 n=99+97) SubVW/100000-8 84.8µs ± 5% 84.2µs ± 2% -0.78% (p=0.000 n=99+93) AddMulVVW/1-8 8.73ns ± 0% 5.33ns ± 3% -38.91% (p=0.000 n=91+96) AddMulVVW/2-8 14.8ns ± 3% 6.5ns ± 2% -56.33% (p=0.000 n=100+79) AddMulVVW/3-8 18.6ns ± 2% 7.8ns ± 5% -57.84% (p=0.000 n=89+96) AddMulVVW/4-8 24.0ns ± 2% 9.8ns ± 0% -59.09% (p=0.000 n=95+67) AddMulVVW/5-8 29.0ns ± 2% 11.5ns ± 5% -60.44% (p=0.000 n=90+97) AddMulVVW/10-8 54.1ns ± 0% 18.8ns ± 1% -65.37% (p=0.000 n=82+84) AddMulVVW/100-8 508ns ± 2% 165ns ± 4% -67.62% (p=0.000 n=72+98) AddMulVVW/1000-8 4.96µs ± 3% 1.55µs ± 1% -68.86% (p=0.000 n=99+91) AddMulVVW/10000-8 50.0µs ± 4% 15.5µs ± 4% -68.95% (p=0.000 n=97+97) AddMulVVW/100000-8 491µs ± 1% 156µs ± 8% -68.22% (p=0.000 n=79+95) Change-Id: I4c6ae0b4065f371aea8103f6a85d9e9274bf01d0 Reviewed-on: https://go-review.googlesource.com/c/go/+/164965 Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Robert Griesemer <gri@golang.org>		2019-03-04 20:49:12 +00:00
..
archive	archive/tar, syscall: add statUnix for aix/ppc64	2019-02-27 23:40:20 +00:00
bufio	bufio: fix emptyFinalToken example to handle multiple Reads	2019-03-02 18:28:10 +00:00
builtin
bytes	bytes: add examples for ToTitleSpecial, ToUpperSpecial and ToLowerSpecial	2019-03-01 14:56:41 +00:00
cmd	cmd/api: fix no go files package panic	2019-03-04 15:32:18 +00:00
compress	compress/gzip: clarify that Multistream gzip requires a ByteReader	2019-02-26 23:02:40 +00:00
container	container/heap: avoid memory leak in example	2019-02-26 23:42:26 +00:00
context
crypto	internal/cpu: change s390x API to match x/sys/cpu	2019-02-28 13:46:45 +00:00
database/sql	database/sql/driver: fix typo	2019-02-15 17:23:55 +00:00
debug	debug/elf: perform stricter section header table checks in NewFile	2019-03-01 06:04:20 +00:00
encoding	encoding/csv: document that Writer is buffered	2019-03-04 05:47:35 +00:00
errors	errors: add Unwrap, Is, and As	2019-02-27 19:09:40 +00:00
expvar
flag	flag: improve docs for PrintDefaults; clarify how to change output destination	2019-01-21 05:30:12 +00:00
fmt	fmt: fix %d and other non-string verbs on errors	2019-02-28 17:31:37 +00:00
go	go/printer: add missing error checks in tests	2019-03-02 04:55:18 +00:00
hash
html	html/template: prevent test from failing with nil pointer dereference	2019-03-02 01:53:40 +00:00
image	image/png: delete unused statement	2019-02-28 18:24:51 +00:00
index/suffixarray
internal	internal/poll: copy and use errnoErr to avoid allocations	2019-03-04 01:22:28 +00:00
io	io: align style of test comments in multi_test.go	2019-02-26 23:01:20 +00:00
log
math	math/big: rewrite pure Go implementations to use math/bits	2019-03-04 20:49:12 +00:00
mime
net	net/http: make TimeoutHandler's ResponseWriter implement Pusher	2019-03-02 05:42:50 +00:00
os	os: remove unreadable directories in RemoveAll	2019-03-04 20:01:35 +00:00
path	path/filepath: do not call GetFinalPathNameByHandle from EvalSymlinks	2019-03-01 07:45:00 +00:00
plugin
reflect	all: rename WebAssembly instructions according to spec changes	2019-03-03 21:10:01 +00:00
regexp	regexp: add ReplaceAllStringFunc example	2019-02-27 21:48:41 +00:00
runtime	runtime: use MADV_FREE_REUSABLE on darwin	2019-03-04 18:28:52 +00:00
sort	sort: change let to let's	2019-01-27 01:34:56 +00:00
strconv	strconv: remove use of DeepEqual for testing errors	2019-02-27 18:23:19 +00:00
strings
sync	sync/atomic: add 32-bit MIPS to the 64-bit alignment requirement	2019-02-09 23:07:07 +00:00
syscall	syscall: optimize SlicePtrFromStrings	2019-03-02 20:13:13 +00:00
testdata
testing	all: fix typos as reported by 'misspell'	2019-02-26 23:02:05 +00:00
text	text/template: error on method calls on nil interfaces	2019-02-26 18:05:09 +00:00
time	time: move the explanation of u/micro to the ParseDuration example	2019-02-28 00:24:56 +00:00
unicode
unsafe
all.bash
all.bat
all.rc
bootstrap.bash
buildall.bash
clean.bash
clean.bat
clean.rc
cmp.bash
iostest.bash	cmd/dist: build exec wrappers during bootstrap	2019-02-26 17:59:23 +00:00
make.bash	cmd/dist, cmd/link: allow passing default dynamic linker/loader	2019-03-01 06:06:13 +00:00
make.bat
Make.dist
make.rc
naclmake.bash
nacltest.bash
race.bash
race.bat
run.bash
run.bat
run.rc