5f209aba6d
Swtich from a sync.RWMutex to atomic.Value for cacheTypeFields. On GOARCH=386, this recovers most of the remaining performance difference from the 1.6 release. Compared with tip on linux/386: name old time/op new time/op delta CodeDecoder-40 92.8ms ± 1% 87.7ms ± 1% -5.50% (p=0.000 n=10+10) name old speed new speed delta CodeDecoder-40 20.9MB/s ± 1% 22.1MB/s ± 1% +5.83% (p=0.000 n=10+10) With more time and care, I believe more of the JSON decoder's work could be shifted so it is done before decoding, and independent of the number of bytes processed. Maybe someone could explore that for Go 1.8. For #16117. Change-Id: I049655b2e5b76384a0d5f4b90e3ec7cc8d8c4340 Reviewed-on: https://go-review.googlesource.com/24472 Run-TryBot: Dmitry Vyukov <dvyukov@google.com> Reviewed-by: Dmitry Vyukov <dvyukov@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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The Go Programming Language
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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.
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