← Tuesday, September 29, 2026Performance & OSDeep dive

GrapheneOS hardening slows OsmAnd through allocator overhead

blog.wirelessmoves.com Editor score 6/10

The writer attributes OsmAnd’s slower map scrolling to GrapheneOS’s hardened memory allocator and reports that disabling the hardening for the app restores speed. It illustrates a practical security-versus-performance trade-off at the application level.

What

On GrapheneOS, OsmAnd runs noticeably slower on a Pixel 8 than on other Android devices.

How

The post attributes the slowdown to the hardened memory allocator and reports that disabling it for OsmAnd restores speed, with a security tradeoff.

Why it matters

This illustrates how per-app hardening can trade performance for security, especially in apps that frequently load and discard data.

Read on blog.wirelessmoves.com → Hacker News · 42 comments

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