diff options
Diffstat (limited to 'pkg/sentry/fsimpl/memfs')
| -rw-r--r-- | pkg/sentry/fsimpl/memfs/BUILD | 4 | ||||
| -rw-r--r-- | pkg/sentry/fsimpl/memfs/benchmark_test.go | 22 |
2 files changed, 23 insertions, 3 deletions
diff --git a/pkg/sentry/fsimpl/memfs/BUILD b/pkg/sentry/fsimpl/memfs/BUILD index 952b20c51..bc5c0b591 100644 --- a/pkg/sentry/fsimpl/memfs/BUILD +++ b/pkg/sentry/fsimpl/memfs/BUILD @@ -1,9 +1,10 @@ load("//tools/go_stateify:defs.bzl", "go_library") load("@io_bazel_rules_go//go:def.bzl", "go_test") -load("//tools/go_generics:defs.bzl", "go_template_instance") package(licenses = ["notice"]) +load("//tools/go_generics:defs.bzl", "go_template_instance") + go_template_instance( name = "dentry_list", out = "dentry_list.go", @@ -48,6 +49,7 @@ go_test( deps = [ ":memfs", "//pkg/abi/linux", + "//pkg/refs", "//pkg/sentry/context", "//pkg/sentry/context/contexttest", "//pkg/sentry/fs", diff --git a/pkg/sentry/fsimpl/memfs/benchmark_test.go b/pkg/sentry/fsimpl/memfs/benchmark_test.go index a94b17db6..23a846c08 100644 --- a/pkg/sentry/fsimpl/memfs/benchmark_test.go +++ b/pkg/sentry/fsimpl/memfs/benchmark_test.go @@ -21,6 +21,7 @@ import ( "testing" "gvisor.dev/gvisor/pkg/abi/linux" + "gvisor.dev/gvisor/pkg/refs" "gvisor.dev/gvisor/pkg/sentry/context" "gvisor.dev/gvisor/pkg/sentry/context/contexttest" "gvisor.dev/gvisor/pkg/sentry/fs" @@ -160,6 +161,8 @@ func BenchmarkVFS1TmpfsStat(b *testing.B) { b.Fatalf("stat(%q) failed: %v", filePath, err) } } + // Don't include deferred cleanup in benchmark time. + b.StopTimer() }) } } @@ -177,6 +180,7 @@ func BenchmarkVFS2MemfsStat(b *testing.B) { if err != nil { b.Fatalf("failed to create tmpfs root mount: %v", err) } + defer mntns.DecRef(vfsObj) var filePathBuilder strings.Builder filePathBuilder.WriteByte('/') @@ -186,7 +190,6 @@ func BenchmarkVFS2MemfsStat(b *testing.B) { defer root.DecRef() vd := root vd.IncRef() - defer vd.DecRef() for i := depth; i > 0; i-- { name := fmt.Sprintf("%d", i) pop := vfs.PathOperation{ @@ -219,6 +222,8 @@ func BenchmarkVFS2MemfsStat(b *testing.B) { Flags: linux.O_RDWR | linux.O_CREAT | linux.O_EXCL, Mode: 0644, }) + vd.DecRef() + vd = vfs.VirtualDentry{} if err != nil { b.Fatalf("failed to create file %q: %v", filename, err) } @@ -243,6 +248,8 @@ func BenchmarkVFS2MemfsStat(b *testing.B) { b.Fatalf("got wrong permissions (%0o)", stat.Mode) } } + // Don't include deferred cleanup in benchmark time. + b.StopTimer() }) } } @@ -343,6 +350,8 @@ func BenchmarkVFS1TmpfsMountStat(b *testing.B) { b.Fatalf("stat(%q) failed: %v", filePath, err) } } + // Don't include deferred cleanup in benchmark time. + b.StopTimer() }) } } @@ -360,6 +369,7 @@ func BenchmarkVFS2MemfsMountStat(b *testing.B) { if err != nil { b.Fatalf("failed to create tmpfs root mount: %v", err) } + defer mntns.DecRef(vfsObj) var filePathBuilder strings.Builder filePathBuilder.WriteByte('/') @@ -395,7 +405,6 @@ func BenchmarkVFS2MemfsMountStat(b *testing.B) { if err != nil { b.Fatalf("failed to walk to mount root: %v", err) } - defer vd.DecRef() for i := depth; i > 0; i-- { name := fmt.Sprintf("%d", i) pop := vfs.PathOperation{ @@ -435,6 +444,7 @@ func BenchmarkVFS2MemfsMountStat(b *testing.B) { Flags: linux.O_RDWR | linux.O_CREAT | linux.O_EXCL, Mode: 0644, }) + vd.DecRef() if err != nil { b.Fatalf("failed to create file %q: %v", filename, err) } @@ -459,6 +469,14 @@ func BenchmarkVFS2MemfsMountStat(b *testing.B) { b.Fatalf("got wrong permissions (%0o)", stat.Mode) } } + // Don't include deferred cleanup in benchmark time. + b.StopTimer() }) } } + +func init() { + // Turn off reference leak checking for a fair comparison between vfs1 and + // vfs2. + refs.SetLeakMode(refs.NoLeakChecking) +} |