1 files changed, 13 insertions, 7 deletions
diff --git a/js/src/jit-test/tests/gc/marking-thread-count.js b/js/src/jit-test/tests/gc/marking-thread-count.js
index 5b90e14186..3c2f7ed30d 100644
--- a/js/src/jit-test/tests/gc/marking-thread-count.js
+++ b/js/src/jit-test/tests/gc/marking-thread-count.js
@@ -1,12 +1,18 @@
 // |jit-test| skip-if: helperThreadCount() === 0
 
-let initialGCHelperThreadCount = gcparam('helperThreadCount');
+// Allow maximum number of helper threads
+gcparam('maxHelperThreads', 8);
+gcparam('helperThreadRatio', 100);
+
+check();
 
-let prevHelperThreadCount = helperThreadCount();
 for (let i of [0, 1, 4, 8, 4, 0]) {
-  gcparam('markingThreadCount', i);
-  assertEq(gcparam('markingThreadCount'), i);
-  assertEq(gcparam('helperThreadCount'), initialGCHelperThreadCount);
-  assertEq(true, helperThreadCount() >= Math.max(prevHelperThreadCount, i));
-  prevHelperThreadCount = helperThreadCount();
+  gcparam('maxMarkingThreads', i);
+  assertEq(gcparam('maxMarkingThreads'), i);
+  check();
+}
+
+function check() {
+  assertEq(gcparam('markingThreadCount') <= gcparam('maxMarkingThreads'), true);
+  assertEq(gcparam('markingThreadCount') < gcparam('helperThreadCount'), true);
 }