💻 gmod_perfutils

Various scripts I've made over the years to find performance bottle necks in garrysmod.

Installation

Either clone/download the repository and put it in your addons/ folder or run the individual files, the files are designed to be able to be ran by themselves.

Usage

File	Commands	Description
sh_hookperf.lua	red_sv_hookperf red_cl_hookperf	This script will log the time taken to run each hook over the span of the amount of time give, defaults to 10 seconds. This can be useful to find laggy hooks without having to use something as heavy as FProfiler as that can cause significiant lag while active, thus being hard to use on servers.
sh_hookorder.lua	red_sv_hookorder red_cl_hookorder	This script will print out the order in which hooks are called. This can be useful to determine if a hook is returning early and preventing other hooks from being called. Also shows the time taken to run each hook.
sh_netperf.lua	red_sv_netperf_start red_cl_netperf_start red_sv_netperf_stop red_cl_netperf_stop	This script will detour all net receivers log the amount of bytes received and the time taken to process the message. This can be useful to reduce networking load on both server and client.
sh_indexcounter.lua	red_sv_indexcounter red_cl_indexcounter	This script will count the amount of __index metamethod calls on entities. The more the worse, entity indexing is significiantly slower than using the entity table directly (ent:GetTable()).
sh_net_logger.lua	red_(sv/cl)_netlogger_start red_(sv/cl)_netlogger_stop red_(sv/cl)_netlogger_ignore	Starts the netlogger, all incomming net.* functions will be printed to console in order as they're being read. Spammy net messages can be ignored using red_(sv/cl)_netlogger_ignore netmsgname
sv_net_dumper.lua	red_sv_netdump	This script will find all net.Receive function origins and dump their files to the data folder. This can be useful for locating badly performing hooks and exploits.

Extra tools

Tools i often use and can recommend for performance profiling.

Tool	Description
FProfiler	A tool that can be used to profile lua code. It can be used to find performance bottlenecks in your code after you've determined them being an issue with +showbudget or +showvprof.
concmd +showbudget	Shows the budget panel in the top right corner of the screen. This shows how long each frame is taking to render, super useful as the first step in finding performance issues. This isn't limited to lua either which is a big bonus.
concmd +showvprof	Shows the vprof panel, has detailed information about costs.
convar phys_speeds 1	Shows the amount of time it took per tick to execute see here for the source.