$ USD
FiveM Server Optimization: The Definitive 2025 Playbook
Audience: Experienced server owners & sys‑admins who want to push a production FiveM instance to its limits while maintaining stability and GDPR‑compliant data handling.
Bramka: Concretely cut frame time, reduce join latency, and free CPU cycles without compromising gameplay.
Start – Measure Before Tweaking
- Backup first. Create an off‑site copy of your entire
server-datafolder and database. (here’s how to backup) - Establish a reference run:
# In console resmon 1 # live metrics – see Section 1 profilemode server sv_maxclients 32 # match current population for apples‑to‑apples numbers - Record:
- Tick time (ms)
- Average resmon usage per resource
- Join‑to‑spawn time (stopwatch)
Why? Optimization without a baseline is guess‑work. Store these numbers so you can roll back any change that makes things worse.
Używanie resmon Like a Pro (detailed guide)
| Command | What it does | Typical target |
|---|---|---|
resmon 1 | Starts live resource monitor. | Development server. |
resmon_log <seconds> | Dumps averages to a CSV. | Production sampling. |
Rules of thumb
- ≤ 0.40 ms idle usage → keep.
- 0.40 – 1.00 ms → optimise soon.
- > 1.00 ms → refactor or disable.
If CPU % spikes coincide with ~33 FPS server FPS drops, the bottleneck is your script, not host hardware.
Configuration‑Level Tweaks
2.1 server.cfg Essentials
# Networking onesync on # mandatory for >32 slots sv_maxclients 64 # raise ONLY if tick time < 6 ms after optimisation sv_maxrate 65000 # bytes/s per client (≈ 520 kbps) sv_minrate 25000 sv_packetLoss 0.05 # disconnect if 5 % loss sustained # Performance set sv_enhancedDriver true # newer FXServer builds only sets gamename "gta5" # avoid legacy fallbacks
Uncertainty note: sv_enhancedDriver is experimental in artifacts < 6368; verify changelog.
2.2 OS & Host
- Ubuntu 22.04 LTS or Windows Server 2022
- Disable C‑states (BIOS) and set Performance governor
- Bind Serwer FX to high‑performance cores:
taskset-c 2-7 fxserver +exec server.cfg
3 · Resource‑Level Optimisation
3.1 Refactor Expensive Loops
-- ⚠️ Anti‑pattern (runs every frame)
Citizen.CreateThread(function()
while true do -- NO wait
local p = PlayerPedId()
SetPedInfiniteAmmoClip(p, true)
end
end)
-- ✅ Good: cache + delay
local p = PlayerPedId()
Citizen.CreateThread(function()
while true do
SetPedInfiniteAmmoClip(p, true)
Wait(1000) -- 1 sec
end
end)
3.2 Leverage the FiveM Script Optimizer (AI) → try it
Paste your Lua script – the model flags tight infinite loops, redundant natives, and offers auto‑patch suggestions. Always review diff output line‑by‑line before deploying.
3.3 Disable Unused Resources
zapewnić only what you actually need. Comment out legacy scripts:
# ensure old_vehshop
3.4 Dynamic LOD / Streaming Budget
Use the r_drivepad cvar to lower draw distance for AI traffic when FPS < 50 on clients.
More asset advice in Section 4.
4 · Asset‑Level Optimisation
| Asset type | Hard limit | Tooling |
.ytd texture | ≤ 16 MiB | Texture Toolkit, GIMP DDS export |
| Prop polycount | ≤ 50 k | Blender decimate + auto LODs |
.awc audio | 48000 Hz mono | Audacity resample |
Streamed data lives in RAM. Keep stream/ pod 1 GB total or risk out‑of‑memory client crashes.
Further reading → Optimise loading times.
5 · Database & I/O
- Używać mysql‑async Lub oxmysql; avoid synchronous
MySQL.Sync.fetchAllinside ticks. - Add indices on columns frequently queried in
SELECT ... WHERE ...clauses. - Cache immutable data (e.g., vehicle names) in Lua tables, not DB hits.
6 · Continuous Monitoring & Regression Guards
- Automated nightly
resmon_log 120– pipe CSV to Grafana. - Git pre‑commit hook invoking the AI Script Optimizer.
- Load test every PR with ≥ double current slot count.
Additional server‑side pointers → Boosting performance: optimise scripts.
7 · When Hardware Is the Wall
- Ryzen 7 7800X3D > Intel i9‑14900K for single‑thread latency.
- 64 GB DDR5 6000 CL30 to minimise page faults.
- NVMe Gen 4 SSD > 5000 MB/s for fast map streaming.
Host with at least 1 Gbps up/down; disable shared vCPU plans.
8 · GDPR & Privacy
Do not log IPs longer than operationally necessary (Recital 39). Hash identifiers (SHA‑256) if you need analytics.
Ensure any third‑party analytics scripts set SameSite=Lax and clear on logout.
9 · Checklist (for your Admin Team)
So, what to do? Here in a nutshell:
| # | Task | Concrete action / command | Pass criteria |
|---|---|---|---|
| Pre-flight | |||
| 1 | Snapshot & tag | tar -czf backup_$(date +%F).tgz ~/fivem/server-data && mysqldump -u root -p --single-transaction fivem > db.sqlTag Git: git tag prod-$(date +%F) | Archives stored off-site & Git CI green |
| 2 | Artifact parity | Document FXServer build tested in staging (e.g. b6362) | Same build number ready in prod |
| 3 | Maintenance window | Inform players, set sv_login_token "" or enable txAdmin maintenance mode | No new joins; current players warned |
| Deploy | |||
| 4 | Stop services cleanly | txadmin stop Lub Ctrl-C in console; wait “Saving map…” | No orphan FXServer processes |
| 5 | Upgrade binaries | Zastępować Serwer FX & alpine from validated artifact zip | ./FXServer +set version shows new build |
| 6 | Apply optimised server.cfg | Copy‐in reviewed file; run +exec server.cfg +set comlint 1 | No “unknown cvar” errors |
| 7 | Trim resources | Move unused scripts to resources-disabled/; confirm with ensure <name> list | resmon shows removed entries |
| 8 | Clear & rebuild cache | rm -rf cache/* then save_gta_cache mymap if large maps | Cache folder repopulated |
| 9 | DB migration | Run ALTER/CREATE INDEX scripts; test with EXPLAIN | No full-table scans in query plan |
| 10 | Start bound to P-cores | taskset -c 2-7 ./FXServer +exec server.cfg | Server boots; CPU affinity correct |
| Verification (10 min) | |||
| 11 | Live metrics | resmon 1 in console | No resource > 1 ms long-run idle |
| 12 | Automated sample | resmon_log 600 → CSV | Average tick ≤ 6 ms; 99-th ≤ 8 ms |
| 13 | Join latency | Stop-watch join-to-spawn with fresh cache | Time ≤ baseline – 10 % |
| 14 | Functional smoke test | Teleport, buy item, drive vehicle, save garage | Core gameplay paths succeed |
| Post-deploy guards | |||
| 15 | Grafana feed | Cron: `resmon_log 120 | curl -XPOST …/influx` |
| 16 | CI regression hook | Pre-commit runs AI Script Optimizer diff; blocks > +0.20 ms new cost | Hook exits 0 only on green |
| 17 | Log rotation & hashing | Cron: 24 h find logs/ -mtime +1 -exec shasum -a 256 {} ; -exec rm {} | IPs retained ≤ 24 h (GDPR Recital 39) gdpr-info.eu |
| 18 | Backup verify | Restore last snapshot to staging; boot test-server | Snapshot boots; data intact |
| 19 | Release notes | Post changelog & uptime window in Discord; archive to /docs/releases.md | Stakeholders acknowledged |
| 20 | Rollback plan ready | git checkout prod-<date> and copy previous backup manifest | Rollback tested in staging |
Before going live, freeze binaries and config, cut a clean backup, deploy with CPU affinity, re-run resmon until every resource sits < 1 ms, and keep IP logs no longer than 24 h to stay under GDPR storage-limitation.
Conclusion
Establish a numeric baseline, refactor heavy scripts with resmon and the AI optimizer, slim assets, tune server.cfg, and iterate until tick time stays below 6 ms at peak load.
Sourcs
- How to optimise FiveM server performance
- Optimise loading times
- Boosting performance – optimise scripts
- FiveM Script Optimizer (AI tool)
- How to use resmon
