Illustration of two memory semispaces with objects being copied.

Why Cheney Semispace Copying Prevents Heap Fragmentation

Explore why Cheney’s semispace copying algorithm inherently prevents heap fragmentation, how it works under the hood, and what trade‑offs developers should consider.

May 17, 2026 · 7 min · 1422 words · martinuke0
Illustration of two memory semispaces with arrows indicating copying.

The Mechanical Reality of Cheney Semispace Copying

Discover how Cheney’s semispace copying algorithm works under the hood, why it matters for modern runtimes, and what pitfalls to avoid when implementing it.

May 17, 2026 · 8 min · 1596 words · martinuke0
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