Robert Griesemer aea44109cf strconv: replace small int string table with constant string ... This reduces memory use yet still provides the significant performance gain seen when using a fast path for small integers. Improvement of this CL comparing to code without fast path: name old time/op new time/op delta FormatIntSmall-8 35.6ns ± 1% 4.5ns ± 1% -87.30% (p=0.008 n=5+5) AppendIntSmall-8 17.4ns ± 1% 9.4ns ± 3% -45.70% (p=0.008 n=5+5) For comparison, here's the improvement before this CL to code without fast path (1% better for FormatIntSmall): name old time/op new time/op delta FormatIntSmall-8 35.6ns ± 1% 4.0ns ± 3% -88.64% (p=0.008 n=5+5) AppendIntSmall-8 17.4ns ± 1% 8.2ns ± 1% -52.80% (p=0.008 n=5+5) Thus, the code in this CL performs slower for small integers using fast path then the prior version, but this is relative to an already very fast version: name old time/op new time/op delta FormatIntSmall-8 4.05ns ± 3% 4.52ns ± 1% +11.81% (p=0.008 n=5+5) AppendIntSmall-8 8.21ns ± 1% 9.45ns ± 3% +15.05% (p=0.008 n=5+5) Measured on 2.3 GHz Intel Core i7 running macOS Sierra 10.12.3. Overall, it's still ~88% faster than without fast path for small integers, so probably worth it as it removes 100 global string slices in favor of a single string. Credits: This is based on the original (but cleaned up) version of the code by Aliaksandr Valialkin (https://go-review.googlesource.com/c/37963/). Change-Id: Icda78679c8c14666d46257894e9fa3d7f35e58b8 Reviewed-on: https://go-review.googlesource.com/38319 Reviewed-by: Martin Möhrmann <moehrmann@google.com>		2017-03-17 20:33:46 +00:00
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testdata
atob_test.go
atob.go
atof_test.go
atof.go
atoi_test.go
atoi.go
decimal_test.go
decimal.go
doc.go
example_test.go
extfloat.go
fp_test.go
ftoa_test.go
ftoa.go
internal_test.go
isprint.go
itoa_test.go	strconv: optimize formatting for small decimal ints	2017-03-16 19:58:51 +00:00
itoa.go	strconv: replace small int string table with constant string	2017-03-17 20:33:46 +00:00
makeisprint.go
quote_test.go	strconv: strip \r in raw strings passed to Unquote	2016-10-17 18:34:02 +00:00
quote.go	strconv: remove unused append rune width param	2017-03-06 04:37:13 +00:00
strconv_test.go