benchmark: add benches for fs.stat & fs.statSync

benchmark/fs/bench-readdir.js

@@ -14,7 +14,7 @@ function main(conf) {
 
   bench.start();
   (function r(cntr) {
-    if (--cntr <= 0)
+    if (cntr-- <= 0)
       return bench.end(n);
     fs.readdir(path.resolve(__dirname, '../../lib/'), function() {
       r(cntr);

benchmark/fs/bench-realpath.js

@@ -27,7 +27,7 @@ function main(conf) {
 
 function relativePath(n) {
   (function r(cntr) {
-    if (--cntr <= 0)
+    if (cntr-- <= 0)
       return bench.end(n);
     fs.realpath(relative_path, function() {
       r(cntr);
@@ -37,7 +37,7 @@ function relativePath(n) {
 
 function resolvedPath(n) {
   (function r(cntr) {
-    if (--cntr <= 0)
+    if (cntr-- <= 0)
       return bench.end(n);
     fs.realpath(resolved_path, function() {
       r(cntr);

benchmark/fs/bench-stat.js

@@ -0,0 +1,23 @@
+'use strict';
+
+const common = require('../common');
+const fs = require('fs');
+
+const bench = common.createBenchmark(main, {
+  n: [1e4],
+  kind: ['lstat', 'stat']
+});
+
+
+function main(conf) {
+  const n = conf.n >>> 0;
+
+  bench.start();
+  (function r(cntr, fn) {
+    if (cntr-- <= 0)
+      return bench.end(n);
+    fn(__filename, function() {
+      r(cntr, fn);
+    });
+  }(n, fs[conf.kind]));
+}

benchmark/fs/bench-statSync.js

@@ -0,0 +1,21 @@
+'use strict';
+
+const common = require('../common');
+const fs = require('fs');
+
+const bench = common.createBenchmark(main, {
+  n: [1e4],
+  kind: ['lstatSync', 'statSync']
+});
+
+
+function main(conf) {
+  const n = conf.n >>> 0;
+  const fn = fs[conf.kind];
+
+  bench.start();
+  for (var i = 0; i < n; i++) {
+    fn(__filename);
+  }
+  bench.end(n);
+}