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archive: add a benchmark for TarUntar

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Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
This commit is contained in:
unclejack 2014-07-16 21:50:02 +03:00
parent a377844998
commit 76429cc11f
1 changed files with 39 additions and 0 deletions
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39
archive/archive_test.go
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@ -199,3 +199,42 @@ func TestUntarUstarGnuConflict(t *testing.T) {
t.Fatalf("%s not found in the archive", "root/.cpanm/work/1395823785.24209/Plack-1.0030/blib/man3/Plack::Middleware::LighttpdScriptNameFix.3pm")
}
}
func prepareUntarSourceDirectory(numberOfFiles int, targetPath string) (int, error) {
fileData := []byte("fooo")
for n := 0; n < numberOfFiles; n++ {
fileName := fmt.Sprintf("file-%d", n)
if err := ioutil.WriteFile(path.Join(targetPath, fileName), fileData, 0700); err != nil {
return 0, err
}
}
totalSize := numberOfFiles * len(fileData)
return totalSize, nil
}
func BenchmarkTarUntar(b *testing.B) {
origin, err := ioutil.TempDir("", "docker-test-untar-origin")
if err != nil {
b.Fatal(err)
}
tempDir, err := ioutil.TempDir("", "docker-test-untar-destination")
if err != nil {
b.Fatal(err)
}
target := path.Join(tempDir, "dest")
n, err := prepareUntarSourceDirectory(100, origin)
if err != nil {
b.Fatal(err)
}
b.ResetTimer()
b.SetBytes(int64(n))
defer os.RemoveAll(origin)
defer os.RemoveAll(tempDir)
for n := 0; n < b.N; n++ {
err := TarUntar(origin, target)
if err != nil {
b.Fatal(err)
}
os.RemoveAll(target)
}
}