From 5f02a6749231ee9c849a96b149208972dfe398ff Mon Sep 17 00:00:00 2001
From: automated-signal <37887102+automated-signal@users.noreply.github.com>
Date: Tue, 9 Jun 2026 14:09:16 -0500
Subject: [PATCH] Add 5% jitter to CheckScheduler

Co-authored-by: Fedor Indutny <79877362+indutny-signal@users.noreply.github.com>
---
 ts/util/CheckScheduler.preload.ts | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/ts/util/CheckScheduler.preload.ts b/ts/util/CheckScheduler.preload.ts
index 01572e5f6d..e189514ce6 100644
--- a/ts/util/CheckScheduler.preload.ts
+++ b/ts/util/CheckScheduler.preload.ts
@@ -83,7 +83,10 @@ export class CheckScheduler {
       // Gracefully rollout when polling initially
       now - this.#options.interval * Math.random()
     );
-    const targetTimestamp = lastCheckTimestamp + this.#options.interval;
+    // Schedule check out by the interval +-5% jitter
+    const targetTimestamp =
+      lastCheckTimestamp +
+      this.#options.interval * (1 + (Math.random() * 0.1 - 0.05));
     const delay = Math.max(0, targetTimestamp - now);
     if (this.#timer != null) {
       this.#timer.clear();