/SLASHPLAY
How to simulate lag in GMod
With sv_cheats 1 on, type net_fakelag 100 in the console to add 100 ms of fake delay to incoming network data; 0 turns it off.
net_fakelag
Adds artificial delay to all incoming network data to test how things feel with lag; needs sv_cheats 1.
net_fakelag <ms> Examples
net_fakelag 100 Simulate 100 ms of lag.
Arguments
msRequired- Delay in milliseconds, 0 to turn off.
What it does
Lets addon developers test lag compensation and prediction without a bad connection.
The game's own description: Lag all incoming network data (including loopback) by this many milliseconds.
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.