Developer knowledge network · moderated exchange

Społeczność UnreliableCode

Badania programistów, inżynieria wsteczna i społeczność programistów

Knowledge indexNa żywo
4Categories
919Threads
2.8KPosty
Analysis

Internal vs External Architecture: performance, latency and security trade-offs

vtable_slayer
Senior Reverser
MEMBER
Rozpustnik: 215
Data dołączenia: Mar 2018
Posty: 86
Dzięki: 61
1 miesięcy temu · Jul 7, 2026 7:31 AM
#1

Comparing Internal vs External modding architectures in modern games:

Internal (DLL Injection / VMT Hooks):

  • Pros: Direct memory access (sub-nanosecond pointer dereference), native hook execution on game threads, zero IPC latency.
  • Cons: Code exists within game process space, subject to memory page audits and integrity scans.

External (Separate Process / Kernel / DMA):

  • Pros: Completely isolated process address space, zero modified code in game binary.
  • Cons: Requires IPC synchronization, memory read latency (0.1 - 2.0 microseconds), requires external overlay rendering.

Which architecture do you prefer for your projects?

dma_ghost
DMA Guru
MEMBER
Rozpustnik: 115
Data dołączenia: Jan 2020
Posty: 12
Dzięki: 83
1 miesięcy temu · Jul 7, 2026 9:30 AM
#2

For single-player games and private servers, internal is unbeatable for instant hooks. For kernel-protected competitive games, external DMA is the only long-term route.

hook_doctor
Hooking Specialist
MEMBER
Rozpustnik: 181
Data dołączenia: Jul 2019
Posty: 21
Dzięki: 50
1 miesięcy temu · Jul 7, 2026 8:28 PM
#3

Great summary of the trade-offs.