nodejs/benchmark/timers/timers-breadth.js

'use strict';
const common = require('../common.js');

const bench = common.createBenchmark(main, {
  n: [5e6],
});

function main({ n }) {
  let j = 0;
  bench.start();
  function cb() {
    j++;
    if (j === n)
      bench.end(n);
  }
  for (let i = 0; i < n; i++) {
    setTimeout(cb, 1);
  }
}
benchmark: split timers benchmark and refactor The depth benchmark for timers sets a timer that sets a timer that sets a timer that... 500K of them. Since each timer has to wait for the next tick of the event loop this benchmark takes a very long time to run compared to the breadth test that is already in the file. This may be more of an event loop benchmark than a timer benchmark. Reduce the number of iterations for the depth test as it's really just running the iterations in sequence, not in parallel. And even on an infinitely fast machine, it would take over 8 minutes to run because each tick of the event loop would have to wait 1ms before firing the timer. Split the depth and breadth benchmarks so that their `N` values can be set independently. Do some minor refactoring to the benchmarks (but no ES6 additions so that the benchmarks can still be run with old versions of Node.js). Refs: https://github.com/nodejs/node/issues/9493 PR-URL: https://github.com/nodejs/node/pull/9497 Reviewed-By: Andreas Madsen <amwebdk@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> 2016-11-07 01:47:41 +01:00			`'use strict';`
benchmark: var to const PR-URL: https://github.com/nodejs/node/pull/13757 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> 2017-09-14 03:48:53 +02:00			`const common = require('../common.js');`
benchmark: split timers benchmark and refactor The depth benchmark for timers sets a timer that sets a timer that sets a timer that... 500K of them. Since each timer has to wait for the next tick of the event loop this benchmark takes a very long time to run compared to the breadth test that is already in the file. This may be more of an event loop benchmark than a timer benchmark. Reduce the number of iterations for the depth test as it's really just running the iterations in sequence, not in parallel. And even on an infinitely fast machine, it would take over 8 minutes to run because each tick of the event loop would have to wait 1ms before firing the timer. Split the depth and breadth benchmarks so that their `N` values can be set independently. Do some minor refactoring to the benchmarks (but no ES6 additions so that the benchmarks can still be run with old versions of Node.js). Refs: https://github.com/nodejs/node/issues/9493 PR-URL: https://github.com/nodejs/node/pull/9497 Reviewed-By: Andreas Madsen <amwebdk@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> 2016-11-07 01:47:41 +01:00
benchmark: var to const PR-URL: https://github.com/nodejs/node/pull/13757 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de> 2017-09-14 03:48:53 +02:00			`const bench = common.createBenchmark(main, {`
benchmark: changed millions and thousands to n PR-URL: https://github.com/nodejs/node/pull/18917 Fixes: https://github.com/nodejs/node/issues/18778 Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Weijia Wang <starkwang@126.com> Reviewed-By: Andreas Madsen <amwebdk@gmail.com> Reviewed-By: Anatoli Papirovski <apapirovski@mac.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> 2018-03-17 16:19:09 +01:00			`n: [5e6],`
benchmark: split timers benchmark and refactor The depth benchmark for timers sets a timer that sets a timer that sets a timer that... 500K of them. Since each timer has to wait for the next tick of the event loop this benchmark takes a very long time to run compared to the breadth test that is already in the file. This may be more of an event loop benchmark than a timer benchmark. Reduce the number of iterations for the depth test as it's really just running the iterations in sequence, not in parallel. And even on an infinitely fast machine, it would take over 8 minutes to run because each tick of the event loop would have to wait 1ms before firing the timer. Split the depth and breadth benchmarks so that their `N` values can be set independently. Do some minor refactoring to the benchmarks (but no ES6 additions so that the benchmarks can still be run with old versions of Node.js). Refs: https://github.com/nodejs/node/issues/9493 PR-URL: https://github.com/nodejs/node/pull/9497 Reviewed-By: Andreas Madsen <amwebdk@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> 2016-11-07 01:47:41 +01:00			`});`

benchmark: changed millions and thousands to n PR-URL: https://github.com/nodejs/node/pull/18917 Fixes: https://github.com/nodejs/node/issues/18778 Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Weijia Wang <starkwang@126.com> Reviewed-By: Andreas Madsen <amwebdk@gmail.com> Reviewed-By: Anatoli Papirovski <apapirovski@mac.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> 2018-03-17 16:19:09 +01:00			`function main({ n }) {`
benchmark: use let instead of var in timers PR-URL: https://github.com/nodejs/node/pull/31794 Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> 2020-02-14 13:13:58 +01:00			`let j = 0;`
benchmark: split timers benchmark and refactor The depth benchmark for timers sets a timer that sets a timer that sets a timer that... 500K of them. Since each timer has to wait for the next tick of the event loop this benchmark takes a very long time to run compared to the breadth test that is already in the file. This may be more of an event loop benchmark than a timer benchmark. Reduce the number of iterations for the depth test as it's really just running the iterations in sequence, not in parallel. And even on an infinitely fast machine, it would take over 8 minutes to run because each tick of the event loop would have to wait 1ms before firing the timer. Split the depth and breadth benchmarks so that their `N` values can be set independently. Do some minor refactoring to the benchmarks (but no ES6 additions so that the benchmarks can still be run with old versions of Node.js). Refs: https://github.com/nodejs/node/issues/9493 PR-URL: https://github.com/nodejs/node/pull/9497 Reviewed-By: Andreas Madsen <amwebdk@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> 2016-11-07 01:47:41 +01:00			`bench.start();`
			`function cb() {`
benchmark: changed millions and thousands to n PR-URL: https://github.com/nodejs/node/pull/18917 Fixes: https://github.com/nodejs/node/issues/18778 Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Weijia Wang <starkwang@126.com> Reviewed-By: Andreas Madsen <amwebdk@gmail.com> Reviewed-By: Anatoli Papirovski <apapirovski@mac.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> 2018-03-17 16:19:09 +01:00			`j++;`
			`if (j === n)`
			`bench.end(n);`
benchmark: split timers benchmark and refactor The depth benchmark for timers sets a timer that sets a timer that sets a timer that... 500K of them. Since each timer has to wait for the next tick of the event loop this benchmark takes a very long time to run compared to the breadth test that is already in the file. This may be more of an event loop benchmark than a timer benchmark. Reduce the number of iterations for the depth test as it's really just running the iterations in sequence, not in parallel. And even on an infinitely fast machine, it would take over 8 minutes to run because each tick of the event loop would have to wait 1ms before firing the timer. Split the depth and breadth benchmarks so that their `N` values can be set independently. Do some minor refactoring to the benchmarks (but no ES6 additions so that the benchmarks can still be run with old versions of Node.js). Refs: https://github.com/nodejs/node/issues/9493 PR-URL: https://github.com/nodejs/node/pull/9497 Reviewed-By: Andreas Madsen <amwebdk@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> 2016-11-07 01:47:41 +01:00			`}`
benchmark: swap var for let in benchmarks In benchmark directory this changes for loops using var to let when it applies for consistency PR-URL: https://github.com/nodejs/node/pull/28958 Reviewed-By: Anna Henningsen <anna@addaleax.net> 2019-07-31 15:26:38 +02:00			`for (let i = 0; i < n; i++) {`
benchmark: split timers benchmark and refactor The depth benchmark for timers sets a timer that sets a timer that sets a timer that... 500K of them. Since each timer has to wait for the next tick of the event loop this benchmark takes a very long time to run compared to the breadth test that is already in the file. This may be more of an event loop benchmark than a timer benchmark. Reduce the number of iterations for the depth test as it's really just running the iterations in sequence, not in parallel. And even on an infinitely fast machine, it would take over 8 minutes to run because each tick of the event loop would have to wait 1ms before firing the timer. Split the depth and breadth benchmarks so that their `N` values can be set independently. Do some minor refactoring to the benchmarks (but no ES6 additions so that the benchmarks can still be run with old versions of Node.js). Refs: https://github.com/nodejs/node/issues/9493 PR-URL: https://github.com/nodejs/node/pull/9497 Reviewed-By: Andreas Madsen <amwebdk@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Jeremiah Senkpiel <fishrock123@rocketmail.com> 2016-11-07 01:47:41 +01:00			`setTimeout(cb, 1);`
			`}`
			`}`