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'use strict';
const common = require('../common.js');
const { AsyncLocalStorage } = require('async_hooks');
/**
* This benchmark verifies the performance of
* `AsyncLocalStorage.getStore()` on multiple `AsyncLocalStorage` instances
* nested `AsyncLocalStorage.run()`s.
*
* - AsyncLocalStorage1.run()
* - AsyncLocalStorage2.run()
* ...
* - AsyncLocalStorageN.run()
* - AsyncLocalStorage1.getStore()
*/
const bench = common.createBenchmark(main, {
sotrageCount: [1, 10, 100],
n: [1e4],
});
function runBenchmark(store, n) {
for (let idx = 0; idx < n; idx++) {
store.getStore();
}
}
function runStores(stores, value, cb, idx = 0) {
if (idx === stores.length) {
cb();
} else {
stores[idx].run(value, () => {
runStores(stores, value, cb, idx + 1);
});
}
}
function main({ n, sotrageCount }) {
const stores = new Array(sotrageCount).fill(0).map(() => new AsyncLocalStorage());
const contextValue = {};
runStores(stores, contextValue, () => {
bench.start();
runBenchmark(stores[0], n);
bench.end(n);
});
}
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