3 files changed, 163 insertions, 0 deletions
diff --git a/test/benchmarks/fs/BUILD b/test/benchmarks/fs/BUILD
new file mode 100644
index 000000000..2874cdbb3
--- /dev/null
+++ b/test/benchmarks/fs/BUILD
@@ -0,0 +1,23 @@
+load("//tools:defs.bzl", "go_library", "go_test")
+
+package(licenses = ["notice"])
+
+go_library(
+    name = "fs",
+    testonly = 1,
+    srcs = ["fs.go"],
+    deps = ["//test/benchmarks/harness"],
+)
+
+go_test(
+    name = "fs_test",
+    size = "large",
+    srcs = ["bazel_test.go"],
+    library = ":fs",
+    tags = [
+        # Requires docker and runsc to be configured before test runs.
+        "local",
+        "manual",
+    ],
+    deps = ["//pkg/test/dockerutil"],
+)
diff --git a/test/benchmarks/fs/bazel_test.go b/test/benchmarks/fs/bazel_test.go
new file mode 100644
index 000000000..9b652fd43
--- /dev/null
+++ b/test/benchmarks/fs/bazel_test.go
@@ -0,0 +1,109 @@
+// Copyright 2020 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+package fs
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"testing"
+
+	"gvisor.dev/gvisor/pkg/test/dockerutil"
+)
+
+// Note: CleanCache versions of this test require running with root permissions.
+func BenchmarkABSL(b *testing.B) {
+	// Get a machine from the Harness on which to run.
+	machine, err := h.GetMachine()
+	if err != nil {
+		b.Fatalf("failed to get machine: %v", err)
+	}
+	defer machine.CleanUp()
+
+	// Dimensions here are clean/dirty cache (do or don't drop caches)
+	// and if the mount on which we are compiling is a tmpfs/bind mount.
+	benchmarks := []struct {
+		name       string
+		clearCache bool // clearCache drops caches before running.
+		tmpfs      bool // tmpfs will run compilation on a tmpfs.
+	}{
+		{name: "CleanCache", clearCache: true, tmpfs: false},
+		{name: "DirtyCache", clearCache: false, tmpfs: false},
+		{name: "CleanCacheTmpfs", clearCache: true, tmpfs: true},
+		{name: "DirtyCacheTmpfs", clearCache: false, tmpfs: true},
+	}
+	for _, bm := range benchmarks {
+		b.Run(bm.name, func(b *testing.B) {
+			// Grab a container.
+			ctx := context.Background()
+			container := machine.GetContainer(ctx, b)
+			defer container.CleanUp(ctx)
+
+			workdir := "/abseil-cpp"
+
+			// Start a container and sleep by an order of b.N.
+			if err := container.Spawn(ctx, dockerutil.RunOpts{
+				Image: "benchmarks/absl",
+			}, "sleep", fmt.Sprintf("%d", 1000000)); err != nil {
+				b.Fatalf("run failed with: %v", err)
+			}
+
+			// If we are running on a tmpfs, copy to /tmp which is a tmpfs.
+			if bm.tmpfs {
+				if _, err := container.Exec(ctx, dockerutil.ExecOpts{},
+					"cp", "-r", "/abseil-cpp", "/tmp/."); err != nil {
+					b.Fatal("failed to copy directory: %v", err)
+				}
+				workdir = "/tmp" + workdir
+			}
+
+			// Restart profiles after the copy.
+			container.RestartProfiles()
+			b.ResetTimer()
+			// Drop Caches and bazel clean should happen inside the loop as we may use
+			// time options with b.N. (e.g. Run for an hour.)
+			for i := 0; i < b.N; i++ {
+				b.StopTimer()
+				// Drop Caches for clear cache runs.
+				if bm.clearCache {
+					if out, err := machine.RunCommand("/bin/sh", "-c", "sync && sysctl vm.drop_caches=3"); err != nil {
+						b.Skipf("failed to drop caches: %v %s. You probably need root.", err, out)
+					}
+				}
+				b.StartTimer()
+
+				got, err := container.Exec(ctx, dockerutil.ExecOpts{
+					WorkDir: workdir,
+				}, "bazel", "build", "-c", "opt", "absl/base/...")
+				if err != nil {
+					b.Fatalf("build failed with: %v", err)
+				}
+				b.StopTimer()
+
+				want := "Build completed successfully"
+				if !strings.Contains(got, want) {
+					b.Fatalf("string %s not in: %s", want, got)
+				}
+				// Clean bazel in case we use b.N.
+				_, err = container.Exec(ctx, dockerutil.ExecOpts{
+					WorkDir: workdir,
+				}, "bazel", "clean")
+				if err != nil {
+					b.Fatalf("build failed with: %v", err)
+				}
+				b.StartTimer()
+			}
+		})
+	}
+}
diff --git a/test/benchmarks/fs/fs.go b/test/benchmarks/fs/fs.go
new file mode 100644
index 000000000..e5ca28c3b
--- /dev/null
+++ b/test/benchmarks/fs/fs.go
@@ -0,0 +1,31 @@
+// Copyright 2020 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// Package fs holds benchmarks around filesystem performance.
+package fs
+
+import (
+	"os"
+	"testing"
+
+	"gvisor.dev/gvisor/test/benchmarks/harness"
+)
+
+var h harness.Harness
+
+// TestMain is the main method for package fs.
+func TestMain(m *testing.M) {
+	h.Init()
+	os.Exit(m.Run())
+}