Modal Reveals ImageFS, Its Lazy-Loading Container File System Behind Sub-Second Cold Starts

Modal engineers detailed ImageFS, a custom lazy-loading container file system built on a massive tiered distributed store with local NVMe, regional, and P2P caches, enabling sub-second cold starts and underpinning the platform's speed moat.

2026-10-17 ~ 2026-10-17 · 2 related posts

• Modal explains ImageFS, the lazy-loaded filesystem behind sub-second cold starts — josh_wills · 2026-10-17
• Modal explains its speed moat: ImageFS tiered filesystem now tricking VM ext4 — dejavucoder · 2026-10-17