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go/cmd/benchcmp
Josh Bleecher Snyder 285f6fe2f6 go.tools/cmd/benchcmp: add benchcmp
This is intended to replace the awk-based misc/benchcmp.
It mostly matches the existing misc/benchcmp.
Notable changes:

* Written in Go.
* Minor whitespace changes in the output; the tabular nature of the
  output is preserved, as is most number formatting and verbiage.
* Comparisons within each section are sorted from highest change to lowest.
* Proper handling of multiple benchmarks with the same name (issue 7016).
* Does not omit benchmark comparisons for which the new value is zero.
* Adds -changed flag to only show benchmarks whose value have changed.
  Useful for memory-oriented, large-scale benchmark comparisons.
* Has tests.
* Formats small ns measurements with extra precision.

Updates golang/go#7016.

LGTM=r
R=golang-codereviews, dave, dvyukov, oleku.konko, bradfitz, gobot, r
CC=golang-codereviews
https://golang.org/cl/47980043
2014-01-31 15:39:59 -08:00
..
benchcmp.go go.tools/cmd/benchcmp: add benchcmp 2014-01-31 15:39:59 -08:00
compare_test.go go.tools/cmd/benchcmp: add benchcmp 2014-01-31 15:39:59 -08:00
compare.go go.tools/cmd/benchcmp: add benchcmp 2014-01-31 15:39:59 -08:00
parse_test.go go.tools/cmd/benchcmp: add benchcmp 2014-01-31 15:39:59 -08:00
parse.go go.tools/cmd/benchcmp: add benchcmp 2014-01-31 15:39:59 -08:00