# Memory Profiling: torch.profiler, Nsight Systems, OOM Debugging — Production GPU Memory Yönetimi

> Source: https://sukruyusufkaya.com/learn/llm-muhendisligi/memory-profiling-torch-profiler-nsight-oom
> Updated: 2026-08-18T21:17:21.605Z
> Category: LLM Mühendisliği
> Module: Modül 5: PyTorch Mühendisliği — Engineer-Grade
**TLDR:** GPU memory'sinin gizli yaşamı: aktivasyon vs gradient vs optimizer state breakdown, torch.profiler ile memory snapshot, Nsight Systems timeline analizi, OOM root cause analysis, activation checkpointing, gradient accumulation, fragmentation çözümleri.