# Persistent Storage and 97% Faster Cold Starts for Edge Functions

DevFeed: [Persistent Storage and 97% Faster Cold Starts for Edge Functions](<https://devfeed.tech/articles/persistent-storage-and-97-faster-cold-starts-for-edge-functions-479.md>)

Original publisher: [Read original article](<https://supabase.com/blog/persistent-storage-for-faster-edge-functions>)

Author: Lakshan Perera; Nyannyacha

Published: 2025-07-18T07:00:00Z

Content type: release

Language: en

Sources: [Supabase Blog](<https://devfeed.tech/sources/supabase-blog.md>)

Topics: [Supabase](<https://devfeed.tech/topics/supabase.md>), [Amazon S3](<https://devfeed.tech/topics/amazon-s3.md>), [Filesystems](<https://devfeed.tech/topics/filesystems.md>), [mount](<https://devfeed.tech/topics/mount.md>), [SQLite](<https://devfeed.tech/topics/sqlite.md>), [Tokio](<https://devfeed.tech/topics/tokio.md>), [JavaScript](<https://devfeed.tech/topics/javascript.md>), [Internet of things](<https://devfeed.tech/topics/iot.md>), [Database](<https://devfeed.tech/topics/database.md>)

Tags: [boot](<https://devfeed.tech/tags/boot.md>), [dependencies](<https://devfeed.tech/tags/dependencies.md>), [environment-variables](<https://devfeed.tech/tags/environment-variables.md>), [files](<https://devfeed.tech/tags/files.md>), [iot](<https://devfeed.tech/tags/iot.md>), [latency](<https://devfeed.tech/tags/latency.md>), [mount](<https://devfeed.tech/tags/mount.md>), [postgres](<https://devfeed.tech/tags/postgres.md>), [s3](<https://devfeed.tech/tags/s3.md>), [sqlite](<https://devfeed.tech/tags/sqlite.md>), [storage](<https://devfeed.tech/tags/storage.md>), [tokio](<https://devfeed.tech/tags/tokio.md>)

## AI overview

Supabase introduces persistent storage for Edge Functions by mounting S3-compatible buckets, including Supabase Storage Buckets, as directories. The release also reports up to 97% faster and more predictable cold starts by moving workers performing initial script evaluation to a dedicated blocking pool.

## Source excerpt

Mount S3-compatible buckets as persistent file storage in Edge Functions with up to 97% faster cold start times.