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misc/benchcmp: show byte allocation statistics

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R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/6971048
This commit is contained in:
Shenghou Ma 2012-12-22 14:51:16 -05:00 committed by Russ Cox
parent 4b7c2dfcea
commit e09f1e7a46
1 changed files with 30 additions and 4 deletions
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34
misc/benchcmp
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@ -35,18 +35,28 @@ $1 ~ /Benchmark/ && $4 == "ns/op" {
# allocs/op might be at $8 or $10 depending on if
# SetBytes was used or not.
if($8 == "allocs/op")
# 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")
}
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")
if($8 == "allocs/op") {
oldbytes[$1] = $5
oldalloc[$1] = $7
if($10 == "allocs/op")
}
if($10 == "allocs/op") {
oldbytes[$1] = $7
oldalloc[$1] = $9
}
}
}
@ -94,5 +104,21 @@ END {
printf("%-*s %12d %12d %6s%%\n", len, what,
oldalloc[what], newalloc[what], delta)
}
# print alloc bytes
anybytes = 0
for(i=0; i<n; i++) {
what = name[i]
if(!(what in newbytes))
continue
if(anybytes++ == 0)
printf("\n%-*s %12s %12s %7s\n", len, "benchmark", "old bytes", "new bytes", "delta")
if(oldbytes[what] == 0)
delta="n/a"
else
delta=sprintf("%.2f", 100*newbytes[what]/oldbytes[what]-100)
printf("%-*s %12d %12d %6s%%\n", len, what,
oldbytes[what], newbytes[what], delta)
}
}
' "$@"