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979bf48 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 | "use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
0 && (module.exports = {
getGcEvents: null,
startObservingGc: null,
stopObservingGc: null
});
function _export(target, all) {
for(var name in all)Object.defineProperty(target, name, {
enumerable: true,
get: all[name]
});
}
_export(exports, {
getGcEvents: function() {
return getGcEvents;
},
startObservingGc: function() {
return startObservingGc;
},
stopObservingGc: function() {
return stopObservingGc;
}
});
const _perf_hooks = require("perf_hooks");
const _log = require("../../build/output/log");
const _picocolors = require("../picocolors");
const LONG_RUNNING_GC_THRESHOLD_MS = 15;
const gcEvents = [];
const obs = new _perf_hooks.PerformanceObserver((list)=>{
const entry = list.getEntries()[0];
gcEvents.push(entry);
if (entry.duration > LONG_RUNNING_GC_THRESHOLD_MS) {
(0, _log.warn)((0, _picocolors.bold)(`Long running GC detected: ${entry.duration.toFixed(2)}ms`));
}
});
function startObservingGc() {
obs.observe({
entryTypes: [
'gc'
]
});
}
function stopObservingGc() {
obs.disconnect();
}
function getGcEvents() {
return gcEvents;
}
//# sourceMappingURL=gc-observer.js.map |