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The Go programming language
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3cb41be817
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Carlos Eduardo Seo 3cb41be817 math/big: improve performance for AddMulVVW and mulAddVWW for ppc64x 
This change adds a better implementation in asm for AddMulVVW and
mulAddVWW for ppc64x, with speedups up to 1.54x.

benchmark                       old ns/op     new ns/op     delta
BenchmarkAddMulVVW/1-8          6.58          6.29          -4.41%
BenchmarkAddMulVVW/2-8          7.43          7.25          -2.42%
BenchmarkAddMulVVW/3-8          8.95          8.15          -8.94%
BenchmarkAddMulVVW/4-8          10.1          9.37          -7.23%
BenchmarkAddMulVVW/5-8          12.0          10.7          -10.83%
BenchmarkAddMulVVW/10-8         22.1          20.1          -9.05%
BenchmarkAddMulVVW/100-8        211           154           -27.01%
BenchmarkAddMulVVW/1000-8       2046          1450          -29.13%
BenchmarkAddMulVVW/10000-8      20407         14793         -27.51%
BenchmarkAddMulVVW/100000-8     223857        145548        -34.98%

benchmark                       old MB/s     new MB/s     speedup
BenchmarkAddMulVVW/1-8          9719.88      10175.79     1.05x
BenchmarkAddMulVVW/2-8          17233.97     17657.54     1.02x
BenchmarkAddMulVVW/3-8          21446.05     23550.49     1.10x
BenchmarkAddMulVVW/4-8          25375.70     27334.33     1.08x
BenchmarkAddMulVVW/5-8          26650.52     30029.34     1.13x
BenchmarkAddMulVVW/10-8         28984.29     31833.68     1.10x
BenchmarkAddMulVVW/100-8        30249.41     41531.69     1.37x
BenchmarkAddMulVVW/1000-8       31273.35     44108.54     1.41x
BenchmarkAddMulVVW/10000-8      31360.47     43263.54     1.38x
BenchmarkAddMulVVW/100000-8     28589.58     43971.66     1.54x

Change-Id: I8a8105d4da3592afdef3125757a99f378a0254bb
Reviewed-on: https://go-review.googlesource.com/53931
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Lynn Boger <laboger@linux.vnet.ibm.com>
2017-08-11 13:59:52 +00:00
.github .github: add .md extension to SUPPORT file 2017-07-30 21:46:28 +00:00
api doc, api: add syscall.SysProcAttr.AmbientCaps change to 1.9 notes, API 2017-06-29 03:29:46 +00:00
doc doc/1.9: add CL 44074 for net/http to the release notes 2017-08-10 17:47:06 +00:00
lib/time time: vendor tzdata-2017b and update test 2017-06-07 21:23:58 +00:00
misc misc/cgo/errors: update ptr.go comment 2017-08-08 04:31:40 +00:00
src math/big: improve performance for AddMulVVW and mulAddVWW for ppc64x 2017-08-11 13:59:52 +00:00
test test: add missing escape analysis test 2017-08-11 00:56:21 +00:00
.gitattributes
.gitignore .gitignore: change path to zbootstrap.go 2017-04-19 02:13:58 +00:00
AUTHORS A+C: final updates for Go 1.9 2017-07-18 01:47:54 +00:00
CONTRIBUTING.md .github: recommend 'go bug' when filing an issue 2017-07-24 17:18:34 +00:00
CONTRIBUTORS A+C: final updates for Go 1.9 2017-07-18 01:47:54 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE
PATENTS
README.md readme: add attribution for the Gopher image 2017-02-03 19:39:41 +00:00
robots.txt

README.md

The Go Programming Language

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