From 76429cc11f6e2bd731e9ee77a2a538f15ef80eea Mon Sep 17 00:00:00 2001
From: unclejack <unclejacksons@gmail.com>
Date: Wed, 16 Jul 2014 21:50:02 +0300
Subject: [PATCH] archive: add a benchmark for TarUntar
Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)
---
archive/archive_test.go | 39 +++++++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/archive/archive_test.go b/archive/archive_test.go
index 61ee0af8e7..1a68234129 100644
--- a/archive/archive_test.go
+++ b/archive/archive_test.go
@@ -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)
+ }
+}