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test/bench/garbage: fix parser benchmark

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+add standard bench output to tree2
+print GOMAXPROCS as go test does

R=golang-dev, rsc
CC=golang-dev
https://golang.org/cl/5992044
This commit is contained in:
Dmitriy Vyukov 2012-04-05 20:35:54 +04:00
parent fd04f05f2f
commit 77e1227a02
3 changed files with 17 additions and 8 deletions
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2
test/bench/garbage/parser.go
View File

@ -195,7 +195,6 @@ var packages = []string{
"mime",
"net",
"os",
"exp/signal",
"path",
"math/rand",
"reflect",
@ -215,7 +214,6 @@ var packages = []string{
"testing",
"testing/iotest",
"testing/quick",
"testing/script",
"time",
"unicode",
"unicode/utf8",

15
test/bench/garbage/stats.go
View File

@ -14,16 +14,21 @@ import (
func gcstats(name string, n int, t time.Duration) {
st := new(runtime.MemStats)
runtime.ReadMemStats(st)
fmt.Printf("garbage.%sMem Alloc=%d/%d Heap=%d NextGC=%d Mallocs=%d\n", name, st.Alloc, st.TotalAlloc, st.Sys, st.NextGC, st.Mallocs)
fmt.Printf("garbage.%s %d %d ns/op\n", name, n, t.Nanoseconds()/int64(n))
fmt.Printf("garbage.%sLastPause 1 %d ns/op\n", name, st.PauseNs[(st.NumGC-1)%uint32(len(st.PauseNs))])
fmt.Printf("garbage.%sPause %d %d ns/op\n", name, st.NumGC, int64(st.PauseTotalNs)/int64(st.NumGC))
nprocs := runtime.GOMAXPROCS(-1)
cpus := ""
if nprocs != 1 {
cpus = fmt.Sprintf("-%d", nprocs)
}
fmt.Printf("garbage.%sMem%s Alloc=%d/%d Heap=%d NextGC=%d Mallocs=%d\n", name, cpus, st.Alloc, st.TotalAlloc, st.Sys, st.NextGC, st.Mallocs)
fmt.Printf("garbage.%s%s %d %d ns/op\n", name, cpus, n, t.Nanoseconds()/int64(n))
fmt.Printf("garbage.%sLastPause%s 1 %d ns/op\n", name, cpus, st.PauseNs[(st.NumGC-1)%uint32(len(st.PauseNs))])
fmt.Printf("garbage.%sPause%s %d %d ns/op\n", name, cpus, st.NumGC, int64(st.PauseTotalNs)/int64(st.NumGC))
nn := int(st.NumGC)
if nn >= len(st.PauseNs) {
nn = len(st.PauseNs)
}
t1, t2, t3, t4, t5 := tukey5(st.PauseNs[0:nn])
fmt.Printf("garbage.%sPause5: %d %d %d %d %d\n", name, t1, t2, t3, t4, t5)
fmt.Printf("garbage.%sPause5%s: %d %d %d %d %d\n", name, cpus, t1, t2, t3, t4, t5)
// fmt.Printf("garbage.%sScan: %v\n", name, st.ScanDist)
}

8
test/bench/garbage/tree2.go
View File

@ -11,6 +11,7 @@ import (
"os"
"runtime"
"runtime/pprof"
"time"
"unsafe"
)
@ -83,7 +84,12 @@ func main() {
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
}
for i := 0; i < 10; i++ {
const N = 10
var t0 time.Time
for i := 0; i < N; i++ {
t0 = time.Now()
gc()
}
// Standard gotest benchmark output, collected by build dashboard.
gcstats("BenchmarkTree2", N, time.Now().Sub(t0))
}