Benchmark refactoring

tshemsedinov · tshemsedinov · commit 8076fc6fb63e · 2017-04-01T03:14:20.000+03:00
diff --git a/JavaScript/2-benchmark.js b/JavaScript/2-benchmark.js
@@ -3,25 +3,63 @@
 const benchmark = {};
 module.exports = benchmark;
 
-benchmark.do = (count, retry, tests) => {
+const PRE_COUNT = 1000;
 
-  let k;
-  for (k = 0; k < retry; k++) {
-    tests.map(test);
-    console.log();
-    if (global.gc) gc();
-  }
+const OPT_STATUS = [
+  /*0*/ '?', // unknown
+  /*1*/ '+', // optimized
+  /*2*/ '-', // not optimized
+  /*3*/ 'a', // always optimized
+  /*4*/ 'n', // never optimized
+  /*5*/ '?', // unknown,
+  /*6*/ 'm', // maybe deoptimized
+  /*7*/ 't'  // turbofan optimized
+];
 
-  function test(fn) {
-    const begin = process.hrtime();
-    const a = [];
+const opt = fn => OPT_STATUS[%GetOptimizationStatus(fn)];
+const optCount = fn => %GetOptimizationCount(fn);
+const optimize = fn => %OptimizeFunctionOnNextCall(fn);
+
+const rpad = (s, char, count) => (s + char.repeat(count - s.length));
+const lpad = (s, char, count) => (char.repeat(count - s.length) + s);
+
+console.log('\nname (heat) time opt after: define opt heat loop\n');
+
+benchmark.do = (count, tests) => {
+  const times = tests.map((fn) => {
+    const result = [];
     let i;
-    for (i = 0; i < count; i++) {
-      a.push(fn());
-    }
+    const optBefore = opt(fn);
+    optimize(fn);
+    fn();
+    const optAfter = opt(fn);
+    for (i = 0; i < PRE_COUNT; i++) result.push(fn());
+    const optAfterHeat = opt(fn);
+    const begin = process.hrtime();
+    for (i = 0; i < count; i++) result.push(fn());
     const end = process.hrtime(begin);
+    const optAfterLoop = opt(fn);
     const diff = end[0] * 1e9 + end[1];
-    const prefix = '.'.repeat(35 - (diff + fn.name).length);
-    console.log(fn.name + prefix + diff + ' nanoseconds');
-  }
+    const time = lpad(diff.toString(), '.', 15);
+    const name = rpad(fn.name, '.', 25);
+    console.log(
+      name + '(' + (result.length - PRE_COUNT) + ')' +
+      time + ' nanoseconds ' + optCount(fn) + ' ' +
+      optBefore + ' ' + optAfter + ' ' +
+      optAfterHeat + ' ' + optAfterLoop
+    );
+    return { name, time: diff };
+  });
+  console.log();
+  const top = times.sort((t1, t2) => (t1.time - t2.time));
+  const best = top[0].time;
+  const relative = (time) => (time * 100 / best);
+  top.forEach((test) => {
+    test.percent = Math.round(Math.round(relative(test.time) * 100) / 100) - 100;
+    const time = lpad(test.time.toString(), '.', 15);
+    const percent = lpad((
+      test.percent === 0 ? 'min' : '+' + test.percent + '%'
+    ), '.', 10);
+    console.log(test.name + time + percent);
+  });
 };
diff --git a/JavaScript/test.sh b/JavaScript/test.sh
@@ -1,3 +1,3 @@
 #!/bin/sh
 
-node --nouse-idle-notification --expose-gc $1
+node --allow-natives-syntax --nouse-idle-notification --expose-gc $1

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,3 @@`
`1`	`1`	`#!/bin/sh`
`2`	`2`
`3`		`-node --nouse-idle-notification --expose-gc $1`
	`3`	`+node --allow-natives-syntax --nouse-idle-notification --expose-gc $1`