36 lines
842 B
JavaScript
36 lines
842 B
JavaScript
// Number of sweep counts
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// TODO (Exercise 3-1): Choose an appropriate value!
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let P = 1000;
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// Number of elements in your trace
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let K = 5 * 1000 / P;
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// Array of length K with your trace's values
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let T;
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// Value of performance.now() when you started recording your trace
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let start;
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function record() {
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// Create empty array for saving trace values
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T = new Array(K);
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// Fill array with -1 so we can be sure memory is allocated
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T.fill(-1, 0, T.length);
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// Save start timestamp
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start = performance.now();
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// TODO (Exercise 3-1): Record data for 5 seconds and save values to T.
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// Once done recording, send result to main thread
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postMessage(JSON.stringify(T));
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}
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// DO NOT MODIFY BELOW THIS LINE -- PROVIDED BY COURSE STAFF
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self.onmessage = (e) => {
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if (e.data.type === "start") {
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setTimeout(record, 0);
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}
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};
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