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go / go / 033e3e106e6132b530759bf97f7b359b9897ae25
commit033e3e106e6132b530759bf97f7b359b9897ae25[log] [tgz]
authorMartin Möhrmann <martisch@uos.de>Sat Feb 27 19:47:43 2016 +0100
committerRob Pike <r@golang.org>Thu Mar 03 08:25:28 2016 +0000
treea528b270ada5720bd5d5c3629f291f996e65b069
parent71d13a8c01706c0196a843116d403fe8eb446130 [diff]
fmt: optimize %x and %X formatting for byte slices and strings

No extra buffering is needed to save the encoding
since the left padding can be computed and written out
before the encoding is generated.

Add extra tests to both string and byte slice formatting.

name                old time/op  new time/op  delta
SprintfHexString-2   410ns ± 3%   194ns ± 3%  -52.60%  (p=0.000 n=20+19)
SprintfHexBytes-2    431ns ± 3%   202ns ± 2%  -53.13%  (p=0.000 n=18+20)

Change-Id: Ibca4316427c89f834e4faee61614493c7eedb42b
Reviewed-on: https://go-review.googlesource.com/20097
Run-TryBot: Rob Pike <r@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Rob Pike <r@golang.org>
2 files changed
tree: a528b270ada5720bd5d5c3629f291f996e65b069
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
README.md

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