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author | James M Snell <jasnell@gmail.com> | 2017-02-07 12:42:04 -0800 |
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committer | James M Snell <jasnell@gmail.com> | 2017-02-09 17:58:41 -0800 |
commit | 595df9fc4bb577b0f2a622cf23c1838445ef31f4 (patch) | |
tree | 0848651c9dec6b99275c9da9ff47f1a24d4b7492 /benchmark/es | |
parent | 9682151a1c3669263d72b6d934e1b6fcbe382446 (diff) | |
download | android-node-v8-595df9fc4bb577b0f2a622cf23c1838445ef31f4.tar.gz android-node-v8-595df9fc4bb577b0f2a622cf23c1838445ef31f4.tar.bz2 android-node-v8-595df9fc4bb577b0f2a622cf23c1838445ef31f4.zip |
benchmarks: add spread operator benchmark
Useful for comparing spread operator performance over time.
PR-URL: https://github.com/nodejs/node/pull/11227
Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
Diffstat (limited to 'benchmark/es')
-rw-r--r-- | benchmark/es/spread-bench.js | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/benchmark/es/spread-bench.js b/benchmark/es/spread-bench.js new file mode 100644 index 0000000000..a9416ad90e --- /dev/null +++ b/benchmark/es/spread-bench.js @@ -0,0 +1,59 @@ +'use strict'; + +const common = require('../common.js'); +const assert = require('assert'); + +const bench = common.createBenchmark(main, { + method: ['apply', 'spread', 'call-spread'], + count: [5, 10, 20], + context: ['context', 'null'], + rest: [0, 1], + millions: [5] +}); + +function makeTest(count, rest) { + if (rest) { + return function test(...args) { + assert.strictEqual(count, args.length); + }; + } else { + return function test() { + assert.strictEqual(count, arguments.length); + }; + } +} + +function main(conf) { + const n = +conf.millions * 1e6; + const ctx = conf.context === 'context' ? {} : null; + var fn = makeTest(conf.count, conf.rest); + const args = new Array(conf.count); + var i; + for (i = 0; i < conf.count; i++) + args[i] = i; + + switch (conf.method) { + case 'apply': + bench.start(); + for (i = 0; i < n; i++) + fn.apply(ctx, args); + bench.end(n / 1e6); + break; + case 'spread': + if (ctx !== null) + fn = fn.bind(ctx); + bench.start(); + for (i = 0; i < n; i++) + fn(...args); + bench.end(n / 1e6); + break; + case 'call-spread': + bench.start(); + for (i = 0; i < n; i++) + fn.call(ctx, ...args); + bench.end(n / 1e6); + break; + default: + throw new Error('Unexpected method'); + } +} |