How to find laggy entities in GMod
Type think_limit 10 in the server console and a warning prints whenever an entity's think takes longer than 10 ms; 0 turns it off.
think_limit
Prints a warning when an entity's think takes longer than this many milliseconds; 0 is off.
think_limit <ms> Examples
think_limit 10 Warn about thinks over 10 ms.
Arguments
msRequired- Threshold in milliseconds, 0 disables.
What it does
A simple way to catch slow entities or addons causing lag.
The game's own description: Maximum think time in milliseconds, warning is printed if this is exceeded.
Run it on your server
On a SLASHPLAY server, type it in the Console tab of the server page; the reply shows right under it. A value set there lasts until the server restarts. To keep it, add the line to garrysmod/cfg/server.cfg. New to this? Start a GMod server first.
Your own
GMod server.
From $0.03 an hour, only while it runs. New accounts get 6 free tokens.