From 07321cc6603ca811f4e8ac2d52c3c2662e444104 Mon Sep 17 00:00:00 2001
From: Luke Edwards <luke.edwards05@gmail.com>
Date: Wed, 23 Jun 2021 10:47:08 -0700
Subject: [PATCH] chore: include nodejs benchmarks (#125)

* chore: include nodejs benchmarks;

- Related #124

* chore: fix `factors.js` typo
---
 tests/benchmark/benchmarks.py      | 11 ++++++-----
 tests/benchmark/factors/factors.js | 13 +++++++------
 tests/benchmark/fib/fib.js         | 13 +++++++++++++
 tests/benchmark/list/list.js       | 19 +++++++++++++++++++
 tests/benchmark/loop/loop.js       | 18 ++++++++++--------
 tests/benchmark/primes/primes.js   | 20 ++++++++++++++++++++
 6 files changed, 75 insertions(+), 19 deletions(-)
 create mode 100644 tests/benchmark/fib/fib.js
 create mode 100644 tests/benchmark/list/list.js
 create mode 100644 tests/benchmark/primes/primes.js

diff --git a/tests/benchmark/benchmarks.py b/tests/benchmark/benchmarks.py
index 76a1c34..861d184 100644
--- a/tests/benchmark/benchmarks.py
+++ b/tests/benchmark/benchmarks.py
@@ -6,11 +6,11 @@ from os.path import join
 
 ## All benchmark files. ## TODO: pass args for iterations.
 benchmarks = {
-  "factors"      : ['.pk', '.py', '.rb', '.wren'],
-  "fib"          : ['.pk', '.py', '.rb', '.wren'],
-  "list"         : ['.pk', '.py', '.rb'],
-  "loop"         : ['.pk', '.py', '.rb', ".wren"],
-  "primes"       : ['.pk', '.py', '.rb', ".wren"],
+  "factors"      : ['.pk', '.py', '.rb', '.js', '.wren'],
+  "fib"          : ['.pk', '.py', '.rb', '.js', '.wren'],
+  "list"         : ['.pk', '.py', '.rb', '.js'],
+  "loop"         : ['.pk', '.py', '.rb', '.js', '.wren'],
+  "primes"       : ['.pk', '.py', '.rb', '.js', '.wren'],
 }
 
 def main():
@@ -24,6 +24,7 @@ def run_all_benchmarks():
     if file.endswith('.py'  ) : return 'python'
     if file.endswith('.rb'  ) : return 'ruby'
     if file.endswith('.wren') : return 'wren'
+    if file.endswith('.js'  ) : return 'node'
     assert False
 
   for bm_name in benchmarks:
diff --git a/tests/benchmark/factors/factors.js b/tests/benchmark/factors/factors.js
index d8a633b..26b6ef3 100644
--- a/tests/benchmark/factors/factors.js
+++ b/tests/benchmark/factors/factors.js
@@ -3,13 +3,14 @@
 // which makes more faster than other bytecode interpreted
 // VM language listed here.
 
-var start = +new Date();
+var start = process.hrtime();
 
 var N = 50000000;
-var factors = []
-for (var i = 0; i <= N; i++) {
-	if (N % i == 0) factors.push(i);
+var i=0, factors = []
+for (; i <= N; i++) {
+	if (N % i === 0) factors.push(i);
 }
 
-var end = +new Date();
-console.log('elapsed: ' + (end - start)/1000 + 's');
+var end = process.hrtime(start);
+var secs = (end[0] + end[1] / 1e9).toFixed(6) + 's';
+console.log('elapsed:', secs);
diff --git a/tests/benchmark/fib/fib.js b/tests/benchmark/fib/fib.js
new file mode 100644
index 0000000..574efcb
--- /dev/null
+++ b/tests/benchmark/fib/fib.js
@@ -0,0 +1,13 @@
+function fib(n) {
+	if (n < 2) return n;
+	return fib(n - 1) + fib(n - 2);
+}
+
+var start = process.hrtime();
+for (var i=0; i < 10; i++) {
+	process.stdout.write(fib(30) + '\n');
+}
+
+var end = process.hrtime(start);
+var secs = (end[0] + end[1] / 1e9).toFixed(6) + 's';
+console.log('elapsed:', secs);
diff --git a/tests/benchmark/list/list.js b/tests/benchmark/list/list.js
new file mode 100644
index 0000000..b622bae
--- /dev/null
+++ b/tests/benchmark/list/list.js
@@ -0,0 +1,19 @@
+function reverse(list) {
+	var i=0, tmp, idx, count=list.length;
+	for (; i < count; i++) {
+		idx = count - i - 1;
+		tmp = list[idx];
+		list[idx] = list[i];
+		list[i] = tmp;
+	}
+}
+
+var start = process.hrtime();
+
+var i=0, N=20000000, list=Array(N);
+for (; i < N; i++) list[i] = i;
+reverse(list);
+
+var end = process.hrtime(start);
+var secs = (end[0] + end[1] / 1e9).toFixed(6) + 's';
+console.log('elapsed:', secs);
diff --git a/tests/benchmark/loop/loop.js b/tests/benchmark/loop/loop.js
index 3ed1f90..cfd4fbd 100644
--- a/tests/benchmark/loop/loop.js
+++ b/tests/benchmark/loop/loop.js
@@ -3,13 +3,15 @@
 // which makes more faster than other bytecode interpreted
 // VM language listed here.
 
-var start = +new Date();
+var start = process.hrtime();
 
-list = []
-for (var i = 0; i < 10000000; i++) { list.push(i) }
-sum = 0
-for (var i = 0; i < list.length; i++) { sum += list[i]; }
-console.log(sum)
+var i=0, list=[];
+for (; i < 10000000; i++) list.push(i);
 
-var end = +new Date();
-console.log('elapsed: ' + (end - start)/1000 + 's');
+var sum = 0;
+for (i=0; i < list.length; i++) sum += list[i];
+console.log(sum);
+
+var end = process.hrtime(start);
+var secs = (end[0] + end[1] / 1e9).toFixed(6) + 's';
+console.log('elapsed:', secs);
diff --git a/tests/benchmark/primes/primes.js b/tests/benchmark/primes/primes.js
new file mode 100644
index 0000000..bc47805
--- /dev/null
+++ b/tests/benchmark/primes/primes.js
@@ -0,0 +1,20 @@
+function isPrime(n) {
+	if (n < 2) return false;
+	for (var i=2; i < n; i++) {
+		if (n % i === 0) return false;
+	}
+	return true;
+}
+
+var start = process.hrtime();
+
+var i=0, N=30000, primes=[];
+for (; i < N; i++) {
+	if (isPrime(i)) {
+		primes.push(i);
+	}
+}
+
+var end = process.hrtime(start);
+var secs = (end[0] + end[1] / 1e9).toFixed(6) + 's';
+console.log('elapsed:', secs);