36 lines
704 B
JavaScript
36 lines
704 B
JavaScript
|
const runs = 10;
|
||
|
|
||
|
function measureOneLine() {
|
||
|
const LINE_SIZE = 16; // 64/sizeof(int)
|
||
|
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 = [];
|
||
|
|
||
|
// TODO: Exercise 2
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
document.getElementById(
|
||
|
"exercise1-values"
|
||
|
).innerText = `1 Cache Line: [${measureOneLine().join(", ")}]`;
|
||
|
|
||
|
document.getElementById(
|
||
|
"exercise2-values"
|
||
|
).innerText = `N Cache Lines: [${measureNLines().join(", ")}]`;
|