From e2eb980b5efe08536fe48edf0200df8e7eff845b Mon Sep 17 00:00:00 2001
From: Erwan Leboucher <erwanleboucher@gmail.com>
Date: Thu, 16 Jul 2026 22:14:47 +0200
Subject: [PATCH] fix(sync): Stop waking sync loops when removing to-device
 events

---
 changelog.d/2006.bugfix     | 1 +
 src/service/users/device.rs | 2 --
 2 files changed, 1 insertion(+), 2 deletions(-)
 create mode 100644 changelog.d/2006.bugfix

diff --git a/changelog.d/2006.bugfix b/changelog.d/2006.bugfix
new file mode 100644
index 000000000..aa957be56
--- /dev/null
+++ b/changelog.d/2006.bugfix
@@ -0,0 +1 @@
+Fixed high CPU usage when multiple clients from the same account were connected at once. Each sync woke the account's other sync loops, causing them to wake each other in a loop.
diff --git a/src/service/users/device.rs b/src/service/users/device.rs
index 0897ec572..b5cf8de7d 100644
--- a/src/service/users/device.rs
+++ b/src/service/users/device.rs
@@ -253,8 +253,6 @@ pub async fn remove_to_device_events<Until>(
 				self.db.todeviceid_events.del(key);
 			})
 			.await;
-
-		self.services.sync.wake(user_id).await;
 	}
 
 	/// Updates device metadata and increments the device list version.