Commit 26bcd1e3e92 for nodejs

commit 26bcd1e3e925e6b45133f18c91c790252a8b4d99
Author: Filip Skokan <panva.ip@gmail.com>
Date:   Tue Sep 22 11:25:52 2026 +0200

    test: deflake pummel/test-timers

    Timers may fire late on busy systems. Remove the upper timing bounds
    while retaining the lower bounds, and use performance.now() to measure
    elapsed time without wall-clock adjustments.

    Signed-off-by: Filip Skokan <panva.ip@gmail.com>
    Assisted-by: Codex
    PR-URL: https://github.com/nodejs/node/pull/66135
    Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
    Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

diff --git a/test/pummel/test-timers.js b/test/pummel/test-timers.js
index b51c395d53d..83127ce955b 100644
--- a/test/pummel/test-timers.js
+++ b/test/pummel/test-timers.js
@@ -23,20 +23,21 @@
 const common = require('../common');
 const assert = require('assert');

-const WINDOW = 200; // Why does this need to be so big?
+// Timers may fire late on busy systems, so only enforce a lower bound.
+const WINDOW = 200;


 {
-  const starttime = Date.now();
+  const starttime = performance.now();

   setTimeout(common.mustCall(function() {
-    const endtime = Date.now();
+    const endtime = performance.now();

     const diff = endtime - starttime;
     assert.ok(diff > 0);
     console.error(`diff: ${diff}`);

-    assert.ok(Math.abs(diff - 1000) < WINDOW);
+    assert.ok(diff > 1000 - WINDOW);
   }), 1000);
 }

@@ -47,13 +48,13 @@ const WINDOW = 200; // Why does this need to be so big?
 }

 {
-  const starttime = Date.now();
+  const starttime = performance.now();

   let interval_count = 0;

   setInterval(common.mustCall(function() {
     interval_count += 1;
-    const endtime = Date.now();
+    const endtime = performance.now();

     const diff = endtime - starttime;
     assert.ok(diff > 0);
@@ -61,7 +62,7 @@ const WINDOW = 200; // Why does this need to be so big?

     const t = interval_count * 1000;

-    assert.ok(Math.abs(diff - t) < WINDOW * interval_count);
+    assert.ok(diff > t - WINDOW * interval_count);

     assert.ok(interval_count <= 3, `interval_count: ${interval_count}`);
     if (interval_count === 3)