test: increase spin for eventloop test on s390

mhdawson · marco-ippolito · commit d6aca0cd8957 · 2025-03-06T13:38:04.000+01:00
It was excluded as it was failing intermittently. Likely that s390 was just so fast times were rounded down to 0. Increase the spin time on s390x only. Signed-off-by: Michael Dawson <midawson@redhat.com> PR-URL: #56228 Refs: #41286 Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
diff --git a/test/sequential/sequential.status b/test/sequential/sequential.status
@@ -51,7 +51,3 @@ test-tls-securepair-client: PASS, FLAKY
 [$arch==arm]
 # https://github.com/nodejs/node/issues/49933
 test-watch-mode-inspect: SKIP
-
-[$arch==s390x]
-# https://github.com/nodejs/node/issues/41286
-test-performance-eventloopdelay: PASS, FLAKY
diff --git a/test/sequential/test-performance-eventloopdelay.js b/test/sequential/test-performance-eventloopdelay.js
@@ -3,6 +3,7 @@
 
 const common = require('../common');
 const assert = require('assert');
+const os = require('os');
 const {
   monitorEventLoopDelay
 } = require('perf_hooks');
@@ -51,9 +52,13 @@ const { sleep } = require('internal/util');
 }
 
 {
+  const s390x = os.arch() === 's390x';
   const histogram = monitorEventLoopDelay({ resolution: 1 });
   histogram.enable();
   let m = 5;
+  if (s390x) {
+    m = m * 2;
+  }
   function spinAWhile() {
     sleep(1000);
     if (--m > 0) {
