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authorJakob Unterwurzacher2016-09-24 22:45:25 +0200
committerJakob Unterwurzacher2016-09-25 16:43:17 +0200
commit6c52c1a6e6176ba7b6922ee27df7ddd09991b57e (patch)
treeab97471d503d1e84f4ccacb99af9eed6a0f504b0 /tests/reverse/longname_perf_test.go
parent52a6f4f71ed464eb64dc05e0768d4af58bd2c195 (diff)
reverse: add longname benchmark
Diffstat (limited to 'tests/reverse/longname_perf_test.go')
-rw-r--r--tests/reverse/longname_perf_test.go73
1 files changed, 73 insertions, 0 deletions
diff --git a/tests/reverse/longname_perf_test.go b/tests/reverse/longname_perf_test.go
new file mode 100644
index 0000000..43acd25
--- /dev/null
+++ b/tests/reverse/longname_perf_test.go
@@ -0,0 +1,73 @@
+package reverse_test
+
+import (
+ "bytes"
+ "fmt"
+ "os"
+ "testing"
+
+ "github.com/rfjakob/gocryptfs/tests/test_helpers"
+)
+
+var dirA, dirB, x240 string
+
+func TestMain(m *testing.M) {
+ x240 = string(bytes.Repeat([]byte("x"), 240))
+ dirA = test_helpers.TmpDir + "/a"
+ dirB = test_helpers.TmpDir + "/b"
+ os.Mkdir(dirA, 0700)
+ os.Mkdir(dirB, 0700)
+ generateFiles(dirA)
+ test_helpers.MountOrExit(dirA, dirB, "-zerokey", "-reverse")
+ r := m.Run()
+ test_helpers.UnmountPanic(dirB)
+ os.RemoveAll(test_helpers.TmpDir)
+ os.Exit(r)
+}
+
+func genName(i int) string {
+ return fmt.Sprintf("%04d.%s", i, x240)
+}
+
+// Create 10000 files with long names
+func generateFiles(dir string) {
+ for i := 0; i < 100000; i++ {
+ n := genName(i)
+ f, err := os.Create(dir + "/" + n)
+ if err != nil {
+ panic(err)
+ }
+ f.Close()
+ }
+}
+
+func TestLongnameStat(t *testing.T) {
+ _, err := os.Stat(dirA + "/" + genName(0))
+ if err != nil {
+ t.Error(err)
+ }
+ _, err = os.Stat(dirA + "/" + genName(9999))
+ if err != nil {
+ t.Error(err)
+ }
+}
+
+func BenchmarkLongnameStat(b *testing.B) {
+ dirFd, err := os.Open(dirB)
+ if err != nil {
+ b.Fatal(err)
+ }
+ encryptedNames, err := dirFd.Readdirnames(-1)
+ if err != nil {
+ b.Fatal(err)
+ }
+ l := len(encryptedNames)
+ dirFd.Close()
+ b.ResetTimer()
+ for i := 0; i < b.N; i++ {
+ _, err := os.Stat(dirB + "/" + encryptedNames[i%l])
+ if err != nil {
+ b.Fatal(err)
+ }
+ }
+}