Download Perf Profiler FS25 Script Mod

This is early development mod, not a standalone software
Low or unstable FPS with a big mod list? Before you start deleting mods at random, measure.

Perf Profiler times the game’s main Lua thread from the inside and writes a clear ranking to log.txt every 20 seconds:

• Which MOD costs the most milliseconds per frame
• Which FUNCTION inside it (hooks, listeners, vehicle/placeable specializations, game systems)
• How much of the frame is Lua at all and how much is the engine (render, physics, loading)
• Every SPIKE (frame over 40 ms) with its top contributors, marked as LUA or ENGINE

Real example from a 2,489-mod savegame: scripts were only ~4 ms of a ~19 ms frame. The expensive part was somewhere else, and the profiler showed that in 20 minutes instead of a week of trial and error.

WHAT IT MEASURES

• hook: functions attached by mods (Utils.appendedFunction / prependedFunction / overwrittenFunction)
• ovr: functions overwritten by specializations, by name
• mod: update()/draw() of mod event listeners
• spec: onUpdate / onUpdateTick / onPostUpdate / onDraw of vehicle, placeable and hand-tool specializations
• veh: / plc: total update of each vehicle and placeable
• sys: game systems (environment, AI, traffic, water, economy…)
• frame: total Lua per frame – the scripts vs engine split

Every entry shows “self” time (no double counting) and “incl” time (with everything nested).

HOW TO USE

1. Put AAA_PerfProfiler.zip into your mods folder and activate it in the savegame.
   Keep the name – “AAA_” makes it load first, which it needs to catch other mods’ hooks.
2. Play normally. The first 20 seconds after loading are skipped.
3. Read the [PerfProfiler] lines in log.txt (Documents/My Games/FarmingSimulator2025/log.txt).

CONSOLE COMMANDS (~)
ppReport – write a report now
ppReset – reset statistics (measure night, rain, fieldwork separately)
ppStart / ppStop – resume / pause measuring
ppSpike <ms> – spike threshold (default 40)
ppTop <n> – ranking length (default 35)
ppInterval <s> – report interval (default 20)

GOOD TO KNOW

• This is a testing tool. Measuring costs about 0.5 ms per frame, so remove it when you are done.
• It changes nothing in your savegame or gameplay. It only times functions and logs the results.
• Measures main-thread Lua. The engine side (render, physics) shows up as “engine” time and ENGINE spikes.
• Multiplayer: supported. Like any mod, every player needs the same file if the host has it active.
• Full documentation (README.md) with an explanation of every log line is inside the zip.

VERSION
1.2.2.0

❤ ️ Someone loved this mod 9 hours ago!

💡 Others also downloaded: Headland without Straw Swath V1.0.0.1, Double Crop (Foliage), Australian High BAR.

Author: Siemanek

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