wehub-resource-sync
22 lines
760 B
JavaScript
22 lines
760 B
JavaScript
#!/usr/bin/env node
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/**
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* Busy-spins one CPU core to emulate a loaded machine during latency benches
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* (the "every workspace is running an agent and the whole box is hot" case).
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* Spawn N of these to occupy N cores; kill to release.
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*
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* Usage: node cpu-pressure-worker.mjs [maxDurationMs]
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* The duration failsafe (default 10 min) prevents orphaned spinners if the
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* spawning bench dies without cleanup.
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*/
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const maxDurationMs = Number(process.argv[2]) > 0 ? Number(process.argv[2]) : 10 * 60 * 1000
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const deadline = Date.now() + maxDurationMs
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let x = 1
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while (Date.now() < deadline) {
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// Hot integer loop between deadline checks; no yields, no allocation.
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for (let i = 0; i < 5_000_000; i++) {
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x = (x * 31 + 7) % 1000003
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}
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}
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process.exit(0)
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