mirror of
https://github.com/golang/go
synced 2024-11-12 03:00:22 -07:00
67 lines
1.4 KiB
Bash
Executable File
67 lines
1.4 KiB
Bash
Executable File
#!/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.
|
|
|
|
case "$1" in
|
|
-*)
|
|
echo 'usage: benchcmp old.txt new.txt' >&2
|
|
echo >&2
|
|
echo 'Each input file should be gotest -bench output.' >&2
|
|
echo 'Benchcmp compares the first and last for each benchmark.' >&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
|
|
} else {
|
|
old[$1] = $3
|
|
if($6 = "MB/s")
|
|
oldmb[$1] = $5
|
|
}
|
|
}
|
|
|
|
END {
|
|
if(n == 0) {
|
|
print "benchcmp: no repeated benchmarks" >"/dev/stderr"
|
|
exit 1
|
|
}
|
|
|
|
printf("%-*s %12s %12s %7s\n", len, "benchmark", "old ns/op", "new ns/op", "delta")
|
|
|
|
# print ns/op
|
|
for(i=0; i<n; i++) {
|
|
what = name[i]
|
|
printf("%-*s %12d %12d %6s%%\n", len, what, old[what], new[what],
|
|
sprintf("%+.2f", 100*new[what]/old[what]-100))
|
|
}
|
|
|
|
# print mb/s
|
|
anymb = 0
|
|
for(i=0; i<n; i++) {
|
|
what = name[i]
|
|
if(!(what in newmb))
|
|
continue
|
|
if(anymb++ == 0)
|
|
printf("\n%-*s %12s %12s %7s\n", len, "benchmark", "old MB/s", "new MB/s", "speedup")
|
|
printf("%-*s %12s %12s %6sx\n", len, what,
|
|
sprintf("%.2f", oldmb[what]),
|
|
sprintf("%.2f", newmb[what]),
|
|
sprintf("%.2f", newmb[what]/oldmb[what]))
|
|
}
|
|
}
|
|
' "$@"
|