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-rwxr-xr-xmisc/benchcmp127
1 files changed, 4 insertions, 123 deletions
diff --git a/misc/benchcmp b/misc/benchcmp
index 3180f57ea..28a37392d 100755
--- a/misc/benchcmp
+++ b/misc/benchcmp
@@ -1,124 +1,5 @@
-#!/bin/sh
-# Copyright 2011 The Go Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style
-# license that can be found in the LICENSE file.
+#!/bin/bash
-case "$1" in
--*)
- echo 'usage: benchcmp old.txt new.txt' >&2
- echo >&2
- echo 'Each input file should be from:' >&2
- echo ' go test -test.run=NONE -test.bench=. > [old,new].txt' >&2
- echo >&2
- echo 'Benchcmp compares the first and last for each benchmark.' >&2
- echo >&2
- echo 'If -test.benchmem=true is added to the "go test" command' >&2
- echo 'benchcmp will also compare memory allocations.' >&2
- exit 2
-esac
-
-awk '
-BEGIN {
- n = 0
-}
-
-$1 ~ /Benchmark/ && $4 == "ns/op" {
- if(old[$1]) {
- if(!saw[$1]++) {
- name[n++] = $1
- if(length($1) > len)
- len = length($1)
- }
- new[$1] = $3
- if($6 == "MB/s")
- newmb[$1] = $5
-
- # allocs/op might be at $8 or $10 depending on if
- # SetBytes was used or not.
- # B/op might be at $6 or $8, it should be immediately
- # followed by allocs/op
- if($8 == "allocs/op") {
- newbytes[$1] = $5
- newalloc[$1] = $7
- }
- if($10 == "allocs/op") {
- newbytes[$1] = $7
- newalloc[$1] = $9
- }
- } else {
- old[$1] = $3
- if($6 == "MB/s")
- oldmb[$1] = $5
- if($8 == "allocs/op") {
- oldbytes[$1] = $5
- oldalloc[$1] = $7
- }
- if($10 == "allocs/op") {
- oldbytes[$1] = $7
- oldalloc[$1] = $9
- }
- }
-}
-
-END {
- if(n == 0) {
- print "benchcmp: no repeated benchmarks" >"/dev/stderr"
- exit 1
- }
-
- printf("%-*s %12s %12s %7s\n", len, "benchmark", "old ns/op", "new ns/op", "delta")
-
- # print ns/op
- for(i=0; i<n; i++) {
- what = name[i]
- printf("%-*s %12d %12d %6s%%\n", len, what, old[what], new[what],
- sprintf("%+.2f", 100*new[what]/old[what]-100))
- }
-
- # print mb/s
- anymb = 0
- for(i=0; i<n; i++) {
- what = name[i]
- if(!(what in newmb))
- continue
- if(anymb++ == 0)
- printf("\n%-*s %12s %12s %7s\n", len, "benchmark", "old MB/s", "new MB/s", "speedup")
- printf("%-*s %12s %12s %6sx\n", len, what,
- sprintf("%.2f", oldmb[what]),
- sprintf("%.2f", newmb[what]),
- sprintf("%.2f", newmb[what]/oldmb[what]))
- }
-
- # print allocs
- anyalloc = 0
- for(i=0; i<n; i++) {
- what = name[i]
- if(!(what in newalloc))
- continue
- if(anyalloc++ == 0)
- printf("\n%-*s %12s %12s %7s\n", len, "benchmark", "old allocs", "new allocs", "delta")
- if(oldalloc[what] == 0)
- delta="n/a"
- else
- delta=sprintf("%.2f", 100*newalloc[what]/oldalloc[what]-100)
- printf("%-*s %12d %12d %6s%%\n", len, what,
- oldalloc[what], newalloc[what], delta)
- }
-
- # print alloc bytes
- anybytes = 0
- for(i=0; i<n; i++) {
- what = name[i]
- if(!(what in newbytes))
- continue
- if(anybytes++ == 0)
- printf("\n%-*s %12s %12s %7s\n", len, "benchmark", "old bytes", "new bytes", "delta")
- if(oldbytes[what] == 0)
- delta="n/a"
- else
- delta=sprintf("%.2f", 100*newbytes[what]/oldbytes[what]-100)
- printf("%-*s %12d %12d %6s%%\n", len, what,
- oldbytes[what], newbytes[what], delta)
- }
-}
-' "$@"
+echo 'misc/benchcmp has moved:' >&2
+echo ' go get -u code.google.com/p/go.tools/cmd/benchcmp' >&2
+exit 2