#Memory

Your app starts fast but slows to a crawl after 10 minutes. Learn to find and fix memory leaks using Chrome DevTools Memory tab.

A deep dive into one of the oldest and most dangerous software vulnerabilities. How rewriting the Return Address works, and how modern OS protections like ASLR, DEP/NX, and Stack Canaries attempt to stop it.

My Node.js server crashed every midnight with 'Heap Out of Memory'. The culprit? A global variable hoarding data. Through this debugging nightmare, I learned the true difference between Stack and Heap, how V8 Garbage Collection works, and how to prevent memory leaks.

Arrays are apartments, Linked Lists are scavenger hunts. Deep dive into Node structure, O(1) insertion, Memory Fragmentation, LRU Cache, and Circular Linked Lists.

Arrays use contiguous memory seats. Deep dive into O(1) Access formula, CPU Cache Locality, Buffer Overflow security risks, and Dynamic Array resizing logic.

C's notorious barrier. Pointers directly manipulate memory addresses—powerful but dangerous. References are the safe version. The terror of Segfault and nightmare of nullptr.

Janitor cleaning up developer's mess. Convenient, but sometimes blocks the hallway (Stop The World).

PC froze. Mouse moves but clicks don't work. HDD led blinking like crazy. This is Thrashing.

Desk is full. Which book to throw away? Oldest? Least used? OS's decision making.

If Paging is mechanical chopping, Segmentation is meaningful organization. Managing by Code, Data, Stack.

Slice memory into identical grid blocks. The standard technique aiming to solve External Fragmentation.

Why does my server crash? OS's desperate struggle to manage limited memory. War against Fragmentation.

Ever hit 'CUDA Out of Memory' while training a deep learning model? Understanding the difference between VRAM and regular RAM.

How do you run a 10GB game with only 8GB of RAM? The OS secretly uses part of your hard drive.

90% of CPU performance is determined by cache. From data locality and MESI protocol to cache mapping, TLB, branch prediction, and NUMA.

From DRAM leakage currents to ECC, HBM, and real benchmarks (fio, sysbench). A developer's guide going beyond simple analogies.

Current flows = 1, Stoops = 0. But how does it remember info? The birth of 1-bit memory.