3000d77017
Add micro-benchmarks to verify the performance degradation related to the number of active `AsyncLocalStorage`s. With these benchmarks, trying to improve the async context propagation to be an O(1) operation, which is an operation more frequent compared to `asyncLocalStorage.run` and `asyncLocalStorage.getStore`. PR-URL: https://github.com/nodejs/node/pull/46414 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Gerhard Stöbich <deb2001-github@yahoo.de> Reviewed-By: Minwoo Jung <nodecorelab@gmail.com>
47 lines
1.1 KiB
JavaScript
47 lines
1.1 KiB
JavaScript
'use strict';
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const common = require('../common.js');
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const { AsyncLocalStorage } = require('async_hooks');
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/**
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* This benchmark verifies the performance of
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* `AsyncLocalStorage.getStore()` on multiple `AsyncLocalStorage` instances
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* nested `AsyncLocalStorage.run()`s.
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*
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* - AsyncLocalStorage1.run()
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* - AsyncLocalStorage2.run()
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* ...
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* - AsyncLocalStorageN.run()
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* - AsyncLocalStorage1.getStore()
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*/
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const bench = common.createBenchmark(main, {
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sotrageCount: [1, 10, 100],
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n: [1e4],
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});
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function runBenchmark(store, n) {
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for (let idx = 0; idx < n; idx++) {
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store.getStore();
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}
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}
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function runStores(stores, value, cb, idx = 0) {
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if (idx === stores.length) {
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cb();
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} else {
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stores[idx].run(value, () => {
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runStores(stores, value, cb, idx + 1);
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});
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}
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}
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function main({ n, sotrageCount }) {
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const stores = new Array(sotrageCount).fill(0).map(() => new AsyncLocalStorage());
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const contextValue = {};
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runStores(stores, contextValue, () => {
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bench.start();
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runBenchmark(stores[0], n);
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bench.end(n);
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});
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}
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