SHD-WebsiteFingerprintingLab/part1/warmup.js

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JavaScript
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const runs = 10;
function measureOneLine() {
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const LINE_SIZE = 32; // 128/sizeof(int)
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let result = [];
// Fill with -1 to ensure allocation
const M = new Array(runs * LINE_SIZE).fill(-1);
for (let i = 0; i < runs; i++) {
const start = performance.now();
let val = M[i * LINE_SIZE];
const end = performance.now();
result.push(end - start);
}
return result;
}
function measureNLines() {
let result = [];
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// TODO: Exercise 1-1
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return result;
}
document.getElementById(
"exercise1-values"
).innerText = `1 Cache Line: [${measureOneLine().join(", ")}]`;
document.getElementById(
"exercise2-values"
).innerText = `N Cache Lines: [${measureNLines().join(", ")}]`;