Source code
Revision control
Copy as Markdown
Other Tools
// |jit-test| skip-if: helperThreadCount() === 0
function assertError(thunk) {
let threw = false;
try {
thunk();
} catch (e) {
threw = true;
}
assertEq(threw, true);
}
let initialHelperThreads = helperThreadCount();
// Test that setting maxHelperThreads limits the number of threads.
gcparam("helperThreadRatio", 100);
for (let i = 1; i <= initialHelperThreads; i++) {
gcparam("maxHelperThreads", i);
assertEq(gcparam("helperThreadCount"), i);
}
// Test that setting helperThreadRatio works as expected.
gcparam("maxHelperThreads", 1000);
for (let i = 25; i <= 400; i *= 2) {
gcparam("helperThreadRatio", i);
let ratio = i / 100;
let expected = Math.max(Math.floor(initialHelperThreads * ratio), 1);
assertEq(gcparam("helperThreadCount"), expected);
assertEq(helperThreadCount(), Math.max(initialHelperThreads, expected));
}
// Test that illegal settings are checked.
assertError(() => gcparam("helperThreadRatio", 0));
assertError(() => gcparam("maxHelperThreads", 0));