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benchmark: refactor path benchmarks
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So far the benchmarks created a highly specialized function which
would inline exactly to the input. This changes it to provide a
more realistic view to actual input by changing the input on each
iteration. That prevents the function to be to specific.

It also reduces the number of iterations the benchmarks are run to
reduce the overall runtime. A microbenchmark should already show a
significant difference with lower iterations, otherwise the
significance for real world applications is only limited.

PR-URL: #26359
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
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BridgeAR committed Mar 12, 2019
1 parent b45c22b commit 142a92f
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Showing 21 changed files with 86 additions and 62 deletions.
4 changes: 2 additions & 2 deletions benchmark/path/basename-posix.js
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ const bench = common.createBenchmark(main, {
'/foo/bar/baz/asdf/quux.html',
['/foo/bar/baz/asdf/quux.html', '.html'].join('|'),
],
n: [1e6]
n: [1e5]
});

function main({ n, pathext }) {
Expand All @@ -28,7 +28,7 @@ function main({ n, pathext }) {

bench.start();
for (var i = 0; i < n; i++) {
posix.basename(pathext, ext);
posix.basename(i % 3 === 0 ? `${pathext}${i}` : pathext, ext);
}
bench.end(n);
}
4 changes: 2 additions & 2 deletions benchmark/path/basename-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,7 @@ const bench = common.createBenchmark(main, {
'\\foo\\bar\\baz\\asdf\\quux.html',
['\\foo\\bar\\baz\\asdf\\quux.html', '.html'].join('|'),
],
n: [1e6]
n: [1e5]
});

function main({ n, pathext }) {
Expand All @@ -28,7 +28,7 @@ function main({ n, pathext }) {

bench.start();
for (var i = 0; i < n; i++) {
win32.basename(pathext, ext);
win32.basename(i % 3 === 0 ? `${pathext}${i}` : pathext, ext);
}
bench.end(n);
}
4 changes: 2 additions & 2 deletions benchmark/path/dirname-posix.js
Original file line number Diff line number Diff line change
Expand Up @@ -12,13 +12,13 @@ const bench = common.createBenchmark(main, {
'foo/bar',
'/foo/bar/baz/asdf/quux',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
bench.start();
for (var i = 0; i < n; i++) {
posix.dirname(path);
posix.dirname(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
4 changes: 2 additions & 2 deletions benchmark/path/dirname-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -12,13 +12,13 @@ const bench = common.createBenchmark(main, {
'foo\\bar',
'D:\\foo\\bar\\baz\\asdf\\quux',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
bench.start();
for (var i = 0; i < n; i++) {
win32.dirname(path);
win32.dirname(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
4 changes: 2 additions & 2 deletions benchmark/path/extname-posix.js
Original file line number Diff line number Diff line change
Expand Up @@ -15,13 +15,13 @@ const bench = common.createBenchmark(main, {
'/foo/bar/baz/asdf/quux',
'/foo/bar/baz/asdf/quux.foobarbazasdfquux',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
bench.start();
for (var i = 0; i < n; i++) {
posix.extname(path);
posix.extname(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
4 changes: 2 additions & 2 deletions benchmark/path/extname-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -15,13 +15,13 @@ const bench = common.createBenchmark(main, {
'D:\\foo\\bar\\baz\\asdf\\quux',
'\\foo\\bar\\baz\\asdf\\quux.foobarbazasdfquux',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
bench.start();
for (var i = 0; i < n; i++) {
win32.extname(path);
win32.extname(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
8 changes: 5 additions & 3 deletions benchmark/path/format-posix.js
Original file line number Diff line number Diff line change
Expand Up @@ -6,21 +6,23 @@ const bench = common.createBenchmark(main, {
props: [
['/', '/home/user/dir', 'index.html', '.html', 'index'].join('|'),
],
n: [1e7]
n: [1e6]
});

function main({ n, props }) {
props = props.split('|');
const obj = {
root: props[0] || '',
dir: props[1] || '',
base: props[2] || '',
base: '',
ext: props[3] || '',
name: props[4] || '',
name: '',
};

bench.start();
for (var i = 0; i < n; i++) {
obj.base = `a${i}${props[2] || ''}`;
obj.name = `a${i}${props[4] || ''}`;
posix.format(obj);
}
bench.end(n);
Expand Down
8 changes: 5 additions & 3 deletions benchmark/path/format-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -6,21 +6,23 @@ const bench = common.createBenchmark(main, {
props: [
['C:\\', 'C:\\path\\dir', 'index.html', '.html', 'index'].join('|'),
],
n: [1e7]
n: [1e6]
});

function main({ n, props }) {
props = props.split('|');
const obj = {
root: props[0] || '',
dir: props[1] || '',
base: props[2] || '',
base: '',
ext: props[3] || '',
name: props[4] || '',
name: '',
};

bench.start();
for (var i = 0; i < n; i++) {
obj.base = `a${i}${props[2] || ''}`;
obj.name = `a${i}${props[4] || ''}`;
win32.format(obj);
}
bench.end(n);
Expand Down
4 changes: 2 additions & 2 deletions benchmark/path/isAbsolute-posix.js
Original file line number Diff line number Diff line change
Expand Up @@ -10,13 +10,13 @@ const bench = common.createBenchmark(main, {
'/baz/..',
'bar/baz',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
bench.start();
for (var i = 0; i < n; i++) {
posix.isAbsolute(path);
posix.isAbsolute(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
4 changes: 2 additions & 2 deletions benchmark/path/isAbsolute-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -11,13 +11,13 @@ const bench = common.createBenchmark(main, {
'C:baz\\..',
'bar\\baz',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
bench.start();
for (var i = 0; i < n; i++) {
win32.isAbsolute(path);
win32.isAbsolute(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
11 changes: 9 additions & 2 deletions benchmark/path/join-posix.js
Original file line number Diff line number Diff line change
Expand Up @@ -6,15 +6,22 @@ const bench = common.createBenchmark(main, {
paths: [
['/foo', 'bar', '', 'baz/asdf', 'quux', '..'].join('|'),
],
n: [1e6]
n: [1e5]
});

function main({ n, paths }) {
const args = paths.split('|');
const copy = [...args];
const orig = copy[1];

bench.start();
for (var i = 0; i < n; i++) {
posix.join.apply(null, args);
if (i % 3 === 0) {
copy[1] = `${orig}${i}`;
posix.join(...copy);
} else {
posix.join(...args);
}
}
bench.end(n);
}
11 changes: 9 additions & 2 deletions benchmark/path/join-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -6,15 +6,22 @@ const bench = common.createBenchmark(main, {
paths: [
['C:\\foo', 'bar', '', 'baz\\asdf', 'quux', '..'].join('|'),
],
n: [1e6]
n: [1e5]
});

function main({ n, paths }) {
const args = paths.split('|');
const copy = [...args];
const orig = copy[1];

bench.start();
for (var i = 0; i < n; i++) {
win32.join.apply(null, args);
if (i % 3 === 0) {
copy[1] = `${orig}${i}`;
win32.join(...copy);
} else {
win32.join(...args);
}
}
bench.end(n);
}
4 changes: 2 additions & 2 deletions benchmark/path/makeLong-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -9,13 +9,13 @@ const bench = common.createBenchmark(main, {
'\\\\foo\\bar',
'\\\\?\\foo',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
bench.start();
for (var i = 0; i < n; i++) {
win32._makeLong(path);
win32._makeLong(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
4 changes: 2 additions & 2 deletions benchmark/path/normalize-posix.js
Original file line number Diff line number Diff line change
Expand Up @@ -11,13 +11,13 @@ const bench = common.createBenchmark(main, {
'/foo/bar',
'/foo/bar//baz/asdf/quux/..',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
bench.start();
for (var i = 0; i < n; i++) {
posix.normalize(path);
posix.normalize(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
4 changes: 2 additions & 2 deletions benchmark/path/normalize-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -11,13 +11,13 @@ const bench = common.createBenchmark(main, {
'C:\\foo\\bar',
'C:\\foo\\bar\\\\baz\\asdf\\quux\\..',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
bench.start();
for (var i = 0; i < n; i++) {
win32.normalize(path);
win32.normalize(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
9 changes: 3 additions & 6 deletions benchmark/path/parse-posix.js
Original file line number Diff line number Diff line change
Expand Up @@ -12,16 +12,13 @@ const bench = common.createBenchmark(main, {
'foo/bar',
'/foo/bar/baz/asdf/.quux',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
for (var i = 0; i < n; i++) {
posix.parse(path);
}
bench.start();
for (i = 0; i < n; i++) {
posix.parse(path);
for (let i = 0; i < n; i++) {
posix.parse(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
9 changes: 3 additions & 6 deletions benchmark/path/parse-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -13,16 +13,13 @@ const bench = common.createBenchmark(main, {
'foo\\bar',
'\\foo\\bar\\baz\\asdf\\.quux',
],
n: [1e6]
n: [1e5]
});

function main({ n, path }) {
for (var i = 0; i < n; i++) {
win32.parse(path);
}
bench.start();
for (i = 0; i < n; i++) {
win32.parse(path);
for (let i = 0; i < n; i++) {
win32.parse(i % 3 === 0 ? `${path}${i}` : path);
}
bench.end(n);
}
12 changes: 6 additions & 6 deletions benchmark/path/relative-posix.js
Original file line number Diff line number Diff line change
Expand Up @@ -12,7 +12,7 @@ const bench = common.createBenchmark(main, {
['/foo/bar/baz/quux', '/foo/bar/baz/quux'].join('|'),
['/foo/bar/baz/quux', '/var/log'].join('|'),
],
n: [1e6]
n: [1e5]
});

function main({ n, paths }) {
Expand All @@ -22,13 +22,13 @@ function main({ n, paths }) {
to = paths.slice(delimIdx + 1);
paths = paths.slice(0, delimIdx);
}
for (var i = 0; i < n; i++) {
posix.relative(paths, to);
}

bench.start();
for (i = 0; i < n; i++) {
posix.relative(paths, to);
for (let i = 0; i < n; i++) {
if (i % 3 === 0)
posix.relative(`${paths}${i}`, `${to}${i}`);
else
posix.relative(paths, to);
}
bench.end(n);
}
14 changes: 6 additions & 8 deletions benchmark/path/relative-win32.js
Original file line number Diff line number Diff line change
Expand Up @@ -10,7 +10,7 @@ const bench = common.createBenchmark(main, {
['C:\\foo\\BAR\\BAZ', 'C:\\foo\\bar\\baz'].join('|'),
['C:\\foo\\bar\\baz\\quux', 'C:\\'].join('|'),
],
n: [1e6]
n: [1e5]
});

function main({ n, paths }) {
Expand All @@ -21,14 +21,12 @@ function main({ n, paths }) {
paths = paths.slice(0, delimIdx);
}

// Warmup
for (var i = 0; i < n; i++) {
win32.relative(paths, to);
}

bench.start();
for (i = 0; i < n; i++) {
win32.relative(paths, to);
for (let i = 0; i < n; i++) {
if (i % 3 === 0)
win32.relative(`${paths}${i}`, `${to}${i}`);
else
win32.relative(paths, to);
}
bench.end(n);
}
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