> ## Documentation Index
> Fetch the complete documentation index at: https://docs.archil.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Performance

> Archil Performance Specifications

Archil disks are designed to provide enterprise-grade performance while synchronizing with data sets in S3.

### Caching

Archil intelligently caches data to maximize the performance of your disk. If your application requests data that's not
in the cache, Archil will fetch the data from the backing bucket and then cache it for future requests. Archil keeps this data in
cache for up to 1 hour after the final read or write operation to the data. Archil may cache up to 10 MiB of additional data
from the backing bucket than requested.

### Latency

Archil disks are designed to provide consistent, sub-millisecond time-to-first-byte latencies for all cached
read and write operations. Uncached read latencies depend on the specific backing storage provider. For example,
for Amazon S3, uncached reads are typically in the 10-30ms range.

Mounting a disk is fast — `archil mount` typically completes in around 100ms — so disks can be attached on demand
in latency-sensitive and ephemeral environments such as per-request sandboxes.

### Scalability

By default, Archil disks can provide up to 10 GB/s of throughput and 10,000 IOPS across all connected clients.

<Note>
  To request higher throughput or IOPS limits for your disk, please contact us at [support@archil.com](mailto:support@archil.com).
</Note>