← modperf

Stack composer

Started from DayZ.exe: the 9 mods it publishes to the Steam server browser (as of 2026-10-20), put back into load order — servers publish the list last-loaded first. Mods loaded with -servermod= are never published, so they are not here; add them if you know them.

Your stack in load order, earliest first. Drag a row, or use the arrows, to reorder.

  1. 1 CF
  2. 2 Trader
  3. 3 Cl0ud's Military Gear
  4. 4 VPPAdminTools
  5. 5 Water-Resistant Military Gear not analyzed
  6. 6 Cl0ud's Military Gear Expansion
  7. 7 SNAFU Weapons
  8. 8 UnlimitedALe not analyzed
  9. 9 DayZ.exe Core not analyzed
Edit as text

One Workshop id or URL per line, in load order. Up to 250 mods.

3 of 9 mods not analyzed yet — left out of the composition below. Open a mod's page to request its analysis.
Stall risks

File I/O on hot paths, timers created per event, and per-player-per-frame hooks across the stack. These can stall a frame regardless of the load figure. See all 3 below.

Mods silencing mods
None

Across 21 server-side methods hooked by two or more mods. 1 more on client-only UI classes, listed separately.

Structural load
0.24% of a frame at 100 players

2.417 ms per second, all 6 mods combined. Hook dispatch and timers only — not what the hooks do inside. Methodology.

Who silences whom#

A later-loaded mod overrides a method without super(), so the earlier mod's code on that method — and vanilla's — never runs. Whether that is a bug or the whole point of the mod is the author's call; this shows the structure, not intent.

✓ No server-side conflicts: every method two or more of these mods hook preserves super() end to end.

1 conflict on client-only classes (menus, HUD, notifications) — no server effect
  • MissionGameplay.OnKeyRelease — VPPAdminTools silences Trader

Hot hooks shared across the stack#

The engine calls the last-loaded mod first; each super() hands on to the mod before it, ending at vanilla. Badges show what each mod's override calls inside — that body work, not the chain itself, is what costs frame time.

DayZGame.OnUpdate
every server frame
VPPAdminTools then CF then vanilla
MissionServer.OnUpdate
every server frame
Trader then CF then vanilla
DayZGame.OnRPC
per event
VPPAdminTools sometimes stops here then CF sometimes stops here then vanilla
PlayerBase.SetActions
per event
VPPAdminTools then Trader then vanilla

Stall risks#

3 places where one mod's code can hold up a frame by itself, whatever the load figure says. Each is a pattern found in the code, not a measurement: how much it costs depends on what the hook does inside. Most severe first, then in load order.

VPPAdminTools
PlayerBase.CommandHandler
about 30× per player per second
Per-player, per-frame hook warning
VPPAdminTools.pbo::4_World\VPPAdminTools\Entities\PlayerBase.c:401
VPPAdminTools
SurvivorBase.EOnFrame
about 30× per player per second
Per-player, per-frame hook warning
VPPAdminTools.pbo::4_World\VPPAdminTools\Entities\SurvivorBase.c:42
VPPAdminTools
SurvivorBase.EOnPostFrame
about 30× per player per second
Per-player, per-frame hook warning
VPPAdminTools.pbo::4_World\VPPAdminTools\Entities\SurvivorBase.c:61

Everything else#

All 21 server-side methods hooked by two or more mods

vanilla → earliest mod → … → latest mod (dispatch enters at the latest). struck = suppressed by a later chain break; ✂ = no super(); "(cond)" = super() only on some paths.

methodtierchain (load order)
ActionConstructor.RegisterActions — vanilla → Trader → VPPAdminTools → SNAFU Weapons
MissionServer.OnInit T3 vanilla → CF → Trader → VPPAdminTools
ModItemRegisterCallbacks.RegisterOneHanded — vanilla → CF → Trader → SNAFU Weapons
CarScript.OnStoreLoad T3 vanilla → CF → Trader
CarScript.OnStoreSave T3 vanilla → CF → Trader
DayZGame.DeferredInit — vanilla → CF → VPPAdminTools
DayZGame.OnRPC T2 vanilla → CF (cond) → VPPAdminTools (cond)
DayZGame.OnUpdate T0 vanilla → CF → VPPAdminTools
MissionBase.CreateScriptedMenu — vanilla → Trader → VPPAdminTools
MissionServer.InvokeOnConnect T3 vanilla → CF → Trader
MissionServer.OnEvent — vanilla → CF → VPPAdminTools
MissionServer.OnMissionFinish T3 vanilla → CF → VPPAdminTools
MissionServer.OnMissionStart T3 vanilla → CF → VPPAdminTools
MissionServer.OnUpdate T0 vanilla → CF → Trader
MissionServer.PlayerDisconnected T3 vanilla → CF → VPPAdminTools
ModItemRegisterCallbacks.CustomBoneRemapping — vanilla → CF → SNAFU Weapons
ModItemRegisterCallbacks.RegisterFireArms — vanilla → CF → SNAFU Weapons
ModItemRegisterCallbacks.RegisterPistol — vanilla → CF → SNAFU Weapons
PlayerBase.CanBeTargetedByAI — vanilla → Trader (cond) → VPPAdminTools (cond)
PlayerBase.SetActions T2 vanilla → Trader → VPPAdminTools
PluginManager.Init — vanilla → Trader → VPPAdminTools
166 methods hooked by only one of these mods

No cross-mod interaction is possible here; a ✂ still means vanilla's behaviour on that method is replaced.

methodtiermod
ACOGOptic.CanPutAsAttachment — SNAFU Weapons
ActionActivateTrap.OnFinishProgressServer — VPPAdminTools
ActionBurnSewTarget.ActionCondition T2 Trader (cond)
ActionCarDoors.ActionCondition T2 Trader (cond)
ActionCarDoorsOutside.ActionCondition T2 Trader (cond)
ActionCheckPulse.ActionCondition T2 Trader (cond)
ActionCheckPulseTarget.ActionCondition T2 Trader
ActionCollectBloodTarget.ActionCondition T2 Trader (cond)
ActionCraftBolts.InitCuttingTypes — SNAFU Weapons
ActionDefibrilateTarget.ActionCondition T2 Trader (cond)
ActionDeployObject.ActionCondition T2 Trader (cond)
ActionDetach.ActionCondition T2 Trader (cond)
ActionDisinfectTarget.ActionCondition T2 Trader (cond)
ActionForceConsume.ActionCondition T2 Trader (cond)
ActionForceConsumeSingle.ActionCondition T2 Trader (cond)
ActionForceFeedCan.ActionCondition T2 Trader (cond)
ActionGiveBloodTarget.ActionCondition T2 Trader (cond)
ActionGiveSalineTarget.ActionCondition T2 Trader (cond)
ActionInjectTarget.ActionCondition T2 Trader (cond)
ActionLockDoors.ActionCondition T2 Trader (cond)
ActionPin.OnStartServer — VPPAdminTools
ActionRestrainSelf.ActionCondition T2 Trader (cond)
ActionRestrainTarget.ActionCondition T2 Trader (cond)
ActionSewTarget.ActionCondition T2 Trader (cond)
ActionUnpin.ActionCondition T2 Trader (cond)
ActionUnpin.OnStartServer — VPPAdminTools
AdvancedCommunication.OnStoreLoad T3 CF
AdvancedCommunication.OnStoreSave T3 CF
Ammo_40mm_ChemGas.EEKilled T3 Trader (cond)
Ammo_40mm_ChemGas.OnActivatedByItem — Trader (cond)
Ammo_40mm_Explosive.EEKilled T3 Trader (cond)
Ammo_40mm_Explosive.OnActivatedByItem — Trader (cond)
Ammunition_Base.AddQuantityTR — Trader ✂
Ammunition_Base.SetQuantityTR — Trader ✂
AnimalBase.OnStoreLoad T3 CF
AnimalBase.OnStoreSave T3 CF
AreaExposureMdfr.Activate — VPPAdminTools (cond)
AreaExposureMdfr.OnActivate — VPPAdminTools (cond)
AreaExposureMdfr.OnTick — Trader (cond)
BarrelHoles_ColorBase.AddWetnessToFireplace — Trader (cond)
BarrelHoles_ColorBase.BurnItemsInFireplace — Trader (cond)
BarrelHoles_ColorBase.CalcAndSetQuantity — Trader (cond)
BarrelHoles_ColorBase.CanPutIntoHands T2 Trader (cond)
BarrelHoles_ColorBase.DeferredInit — Trader
BarrelHoles_ColorBase.SpendFireConsumable — Trader (cond)
BoatScript.OnEngineStart — Trader
BoatScript.OnStoreLoad T3 CF
BoatScript.OnStoreSave T3 CF
BuildingBase.OnStoreLoad T3 CF
BuildingBase.OnStoreSave T3 CF
ButtstockBase.IsButtstock — SNAFU Weapons ✂
CarScript.CanDisplayAttachmentCategory — Trader
CarScript.CanDisplayAttachmentSlot T2 Trader
CarScript.OnEngineStart — Trader
ChernarusPlusData.WeatherOnBeforeChange — VPPAdminTools
ContaminatedArea_Local.DeferredInit — Trader (cond)
ContaminatedTrigger.OnEnterServerEvent — VPPAdminTools (cond)
CreditsLoader.GetData — CF ✂
DayZGame.FirearmEffects — Trader (cond)
DayZGame.OnEvent — CF
DayZGame.OnInitialize — VPPAdminTools (cond)
DayZGame.OnKeyPress — VPPAdminTools
DayZGame.OnKeyRelease — VPPAdminTools
DayZPlayerImplement.CameraHandler — VPPAdminTools (cond)
DayZPlayerImplement.ModCommandHandlerBefore — VPPAdminTools
DayZPlayerImplement.ModCommandHandlerInside — VPPAdminTools
DayZPlayerImplement.OnRPC T2 Trader
DayZPlayerImplement.OnStoreLoad T3 CF
DayZPlayerImplement.OnStoreSave T3 CF
DayZPlayerMeleeFightLogic_LightHeavy.HandleFightLogic — Trader (cond)
DrowningMdfr.ActivateCondition — VPPAdminTools (cond)
DrowningMdfr.DeactivateCondition — VPPAdminTools (cond)
DrowningMdfr.OnTick — VPPAdminTools (cond)
EnochData.WeatherOnBeforeChange — VPPAdminTools
GhillieBushrag_ColorBase.CanPutAsAttachment — Cl0ud's Military Gear
GhillieSuit_ColorBase.CanPutAsAttachment — Cl0ud's Military Gear
GhillieTop_ColorBase.CanPutAsAttachment — Cl0ud's Military Gear
Grenade_Base.EEHitBy T2 VPPAdminTools
Grenade_Base.InitiateExplosion — Trader (cond)
Grenade_ChemGas.OnExplode — Trader (cond)
HelicopterScript.OnStoreLoad T3 CF
HelicopterScript.OnStoreSave T3 CF
HuntingOptic.CanPutAsAttachment — SNAFU Weapons
ImprovisedSuppressor.CanPutAsAttachment — SNAFU Weapons
ItemActionsWidget.SetWeaponQuantity — SNAFU Weapons
ItemBase.OnStoreLoad T3 CF
ItemBase.OnStoreSave T3 CF
KeybindingElement.Reload — CF
LandMineTrap.EEHitBy T2 VPPAdminTools
M4_T3NRDSOptic.CanPutAsAttachment — SNAFU Weapons
M68Optic.CanPutAsAttachment — SNAFU Weapons
MissionBase.CF_IsLoaded — CF ✂
MissionServer.HandleBody — Trader
MissionServer.InvokeOnDisconnect T3 CF
MissionServer.OnClientDisconnectedEvent T3 CF
MissionServer.OnClientNewEvent T3 CF
MissionServer.OnClientPrepareEvent — CF
MissionServer.OnClientReadyEvent T3 CF
MissionServer.OnClientReconnectEvent T3 CF
MissionServer.OnClientRespawnEvent T3 CF
MissionServer.OnMissionLoaded — CF
ModItemRegisterCallbacks.RegisterArcheryItem — CF
ModItemRegisterCallbacks.RegisterCustom — CF
ModItemRegisterCallbacks.RegisterEmptyHanded — CF
ModItemRegisterCallbacks.RegisterHeavy — CF
ModItemRegisterCallbacks.RegisterLauncher — CF
ModItemRegisterCallbacks.RegisterRestrained — CF
ModItemRegisterCallbacks.RegisterSurrender — CF
ModItemRegisterCallbacks.RegisterTwoHanded — CF
ModLoader.GetMods — CF ✂
ModLoader.LoadMods — CF ✂
ModStructure.GetDebugName — CF
ModStructure.GetModActionURL — CF ✂
ModStructure.GetModLogo — CF ✂
ModStructure.GetModLogoOver — CF ✂
ModStructure.GetModLogoSmall — CF ✂
ModStructure.GetModName — CF ✂
ModStructure.GetModOverview — CF ✂
ModStructure.GetModToltip — CF ✂
MotorbikeScript.OnStoreLoad T3 CF
MotorbikeScript.OnStoreSave T3 CF
NotificationRuntimeData.GetIcon — CF ✂
NotificationRuntimeData.GetTitleText — CF ✂
NotificationUI.AddNotification — CF
NotificationUI.RemoveNotification — CF
NotificationUI.UpdateTargetHeight — CF
OpenCan.Init — SNAFU Weapons
OptionsMenuGame.Apply — VPPAdminTools
OptionsMenuGame.IsChanged — VPPAdminTools (cond)
OptionsMenuGame.Revert — VPPAdminTools
OptionsMenuGame.SetOptions — VPPAdminTools
PlayerBase.CommandHandler T1 VPPAdminTools
PlayerBase.EEKilled T3 VPPAdminTools
PlayerBase.Expansion_IsInSafeZone — Trader (cond)
PlayerBase.Init — VPPAdminTools
PlayerBase.OnConnect — VPPAdminTools
PlayerBase.OnDrawOptics2D — VPPAdminTools (cond)
PlayerBase.OnRPC T2 VPPAdminTools
PlayerBase.OnSelectPlayer — CF
PlayerBase.OnStoreLoadLifespan — CF (cond)
PlayerBase.OnVariablesSynchronized T2 VPPAdminTools
PlayerBase.SetSuicide — Trader
PluginAdminLog.PlayerHitBy — VPPAdminTools (cond)
PluginAdminLog.PlayerKilled — VPPAdminTools (cond)
PluginRecipesManagerBase.RegisterRecipies — SNAFU Weapons
PluginTransmissionAgents.InjectAgentsWithPlayer — Trader (cond)
PluginTransmissionAgents.InjectAgentsWithPlayerCount — Trader (cond)
ReflexOptic.CanPutAsAttachment — SNAFU Weapons
SmershVest.CanPutAsAttachment — Cl0ud's Military Gear
SurvivorBase.CanJump — VPPAdminTools
SurvivorBase.EOnFrame T1 VPPAdminTools ✂
SurvivorBase.EOnPostFrame T1 VPPAdminTools
TransferValues.SendValue — VPPAdminTools
TrapBase.OnPlacementComplete — VPPAdminTools
TrapBase.StartActivate — Trader (cond)
UniversalLight.CanPutAsAttachment — SNAFU Weapons (cond)
UniversalLight.InitAttachmentsSlotsToCheck — SNAFU Weapons
VONManagerImplementation.HandleInput — Trader (cond)
VONManagerImplementation.SetInSafeZone — Trader ✂
VPPAdminHud.DefineButtons — VPPAdminTools
VPPContextActionManager.RegisterActions — VPPAdminTools
VPPContextActionManager.RegisterProviders — VPPAdminTools
WeaponManager.CanFire — Trader (cond)
Weapon_Base.EEFired — VPPAdminTools
ZombieBase.OnStoreLoad T3 CF
ZombieBase.OnStoreSave T3 CF

17 methods on client-only classes are not shown: a dedicated server never runs them.

Reading this page.

A conflict shows that code is skipped, not that an author made a mistake — overhaul mods replace systems on purpose. Long chains are cheap: one link costs about 25 ns per dispatch. What costs frame time is the work inside each hook, which is why the badges are there. Everything here comes from the mods' code alone; nothing was measured on a server. Methodology.