Mog9

Mog9 / Memory-Allocator

Public

Custom memory allocator in C++ built from scratch using mmap. Allocates a 1MB memory pool upfront and carves blocks from it to keep all allocations contiguous. Implements malloc, free, block reuse via free list, and coalescing of adjacent free blocks without any standard library allocation functions.

11
1
100% credibility
Found Apr 28, 2026 at 11 stars -- GitGems finds repos before they trend. Get early access to the next one.
Sign Up Free
AI Analysis
C++
AI Summary

An educational C++ program demonstrating a custom system for allocating, reusing, and merging memory spaces without relying on standard library functions.

How It Works

1
🔍 Discover the demo

You stumble upon a simple educational program that shows how computers handle space for storing data.

2
📥 Grab the files

You download the few easy files that make up this learning tool.

3
⚙️ Set it up quickly

With one easy step, you prepare the program to run on your computer.

4
🚀 Run the demo

You launch the program and watch it create, use, and release spaces for numbers.

5
🔄 See space reuse

You notice that after releasing a space, the program reuses the exact same spot for new data.

6
🧩 Watch spaces merge

The program smartly combines nearby empty spaces into one bigger area for larger needs.

✅ Learn the magic

You now understand how computers efficiently manage and reuse their limited space for data, feeling smarter about programming basics.

Sign up to see the full architecture

5 more

Sign Up Free

Star Growth

See how this repo grew from 11 to 11 stars Sign Up Free
Repurpose This Repo

Repurpose is a Pro feature

Generate ready-to-use prompts for X threads, LinkedIn posts, blog posts, YouTube scripts, and more -- with full repo context baked in.

Unlock Repurpose
AI-Generated Review

What is Memory-Allocator?

This C++ custom memory allocator grabs a 1MB pool upfront via mmap and carves contiguous blocks for allocations, implementing drop-in mymalloc and myfree calls. It reuses freed blocks through a free list and merges adjacent free ones to fight fragmentation, all without touching standard library allocators. Devs get a self-contained pool for controlled, predictable memory use in tight environments.

Why is it gaining traction?

It stands out as a from-scratch C++ memory allocator github project that demos real-world features like block reuse and coalescing in under 100 lines, with instant build-and-run tests via simple g++ compile. No bloat, no dependencies—pure mmap pool magic that hooks learning-focused devs tired of opaque stdlib black boxes. Search "custom memory allocator github" and this pops for its transparency over fancier arenas.

Who should use this?

Systems programmers prototyping low-level allocators or debugging leaks. Game modders tweaking arma 3 memory allocator github setups for performance. Embedded devs needing a lightweight, fixed-pool alternative to glibc malloc in resource-starved firmware.

Verdict

At 11 stars and 1.0% credibility score, it's a raw educational sketch—solid docs with screenshots, but skips splitting, threads, overflow, and alignment. Fork it for custom memory allocator experiments, but stick to production allocators like tcmalloc for real apps.

(178 words)

Sign up to read the full AI review Sign Up Free

Similar repos coming soon.