e10286aeda
re-implement IndexRune by IndexByte and Index which are well optimized to get performance gain. name old time/op new time/op delta IndexRune/10-4 53.2ns ± 1% 29.1ns ± 1% -45.32% (p=0.008 n=5+5) IndexRune/32-4 191ns ± 1% 27ns ± 1% -85.75% (p=0.008 n=5+5) IndexRune/4K-4 23.5µs ± 1% 1.0µs ± 1% -95.77% (p=0.008 n=5+5) IndexRune/4M-4 23.8ms ± 0% 1.0ms ± 2% -95.90% (p=0.008 n=5+5) IndexRune/64M-4 384ms ± 1% 15ms ± 1% -95.98% (p=0.008 n=5+5) IndexRuneASCII/10-4 61.5ns ± 0% 10.3ns ± 4% -83.17% (p=0.008 n=5+5) IndexRuneASCII/32-4 203ns ± 0% 11ns ± 5% -94.68% (p=0.008 n=5+5) IndexRuneASCII/4K-4 23.4µs ± 0% 0.3µs ± 2% -98.60% (p=0.008 n=5+5) IndexRuneASCII/4M-4 24.0ms ± 1% 0.3ms ± 1% -98.60% (p=0.008 n=5+5) IndexRuneASCII/64M-4 386ms ± 2% 6ms ± 1% -98.57% (p=0.008 n=5+5) name old speed new speed delta IndexRune/10-4 188MB/s ± 1% 344MB/s ± 1% +82.91% (p=0.008 n=5+5) IndexRune/32-4 167MB/s ± 0% 1175MB/s ± 1% +603.52% (p=0.008 n=5+5) IndexRune/4K-4 174MB/s ± 1% 4117MB/s ± 1% +2262.71% (p=0.008 n=5+5) IndexRune/4M-4 176MB/s ± 0% 4299MB/s ± 2% +2340.46% (p=0.008 n=5+5) IndexRune/64M-4 175MB/s ± 1% 4354MB/s ± 1% +2388.57% (p=0.008 n=5+5) IndexRuneASCII/10-4 163MB/s ± 0% 968MB/s ± 4% +494.66% (p=0.008 n=5+5) IndexRuneASCII/32-4 157MB/s ± 0% 2974MB/s ± 4% +1788.59% (p=0.008 n=5+5) IndexRuneASCII/4K-4 175MB/s ± 0% 12481MB/s ± 2% +7027.71% (p=0.008 n=5+5) IndexRuneASCII/4M-4 175MB/s ± 1% 12510MB/s ± 1% +7061.15% (p=0.008 n=5+5) IndexRuneASCII/64M-4 174MB/s ± 2% 12143MB/s ± 1% +6881.70% (p=0.008 n=5+5) Change-Id: I0632eadb83937c2a9daa7f0ce79df1dee64f992e Reviewed-on: https://go-review.googlesource.com/28537 Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> |
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The Go Programming Language
Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.
For documentation about how to install and use Go, visit https://golang.org/ or load doc/install-source.html in your web browser.
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--
Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set the environment variable $GOROOT to the full path of the go directory (the one containing this file). You can omit the variable if you unpack it into /usr/local/go, or if you rebuild from sources by running all.bash (see doc/install-source.html). You should also add the Go binary directory $GOROOT/bin to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might put the following in your .profile:
export GOROOT=$HOME/go
export PATH=$PATH:$GOROOT/bin
See https://golang.org/doc/install or doc/install.html for more details.