Warning: server thread hitch warning

Step-by-step guide to identify and fix server thread hitch warnings on FiveM.

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Warnings server thread hitch / sync thread hitch indicate that a resource is blocking the thread for too long.

Objective

Identify the resource causing the hitch, then reduce its impact (optimize, update, disable).

Step-by-step guide

1

Locate the warning in the console

In the server console, you will often see lines like:

server thread hitch warning: timer interval of...
sync thread hitch warning: timer interval...
2

Profile the resources (FiveM tool)

In the console, start a recording: record 500

Then save: save file_name

Display the report: view file_name

A link is generated. Open it to see the slowest resources.

3

Fix the identified resource

Quick options:

  • Update the resource (or replace it).

  • Reduce what it does (loops, timers, events).

  • Disable the resource to confirm the diagnosis.

Common issues

The hitch only happens at peak times

This is often related to:

  • a resource that iterates over all players,

  • DB queries that are too slow,

  • a script that spams events.

FAQ

Is the warning “serious”?

It depends. An isolated hitch is often OK. Repeated hitches affect player-side smoothness.

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