max warm sprites limit

On the billing page each tier has a “max warm sprites” limit. Is that a hard limit?

Looking at creating per-customer sprites. It would be manageable to stay under the max concurrent active sprite limits but the count of warm sprites would be an order of magnitude bigger, based on what I’ve seen that sprites stay warm for a day or more.

Yes it’s a hard limit. If you’re already at your limit and a Sprite goes running -> warm then it’ll evict the oldest warm Sprite to cold. So it’s not something you need to manage just something you need to be aware of.

cold Sprites will take a bit longer to boot back up than warm Sprites and I think can experience slow I/O because we have to rehydrate the NVMe cache from object storage.

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