118 million queries per second on Neki
PlanetScale benchmarked Neki, its sharded Postgres, with single-shard primary-key point selects. Targeting about 200K QPS per shard, it went from 5 shards (about 1M QPS) to 50 (9.9M QPS, per-shard rate within 0.8%) to 512 shards and 480 routers, sustaining 118.5M QPS for 16 minutes over 1.22 PiB with a p99 of 6.06 ms at the router and about one error per 1.8 million queries. PlanetScale notes the run was read-only, primary-only with no replicas, and had no failover during the measured window.
- Published
- 2026-09-11
- Scale
- 118.5M QPS sustained for 16 minutes, 512 shards, 480 routers, 1.22 PiB of data, p99 6.06 ms at router, 13.95 ms at client, 15.8M read IOPS, 2+ Tb/s network
- Techniques
- horizontal sharding benchmarking linear scalability
- Stack
- PostgreSQL Neki AWS r8g.16xlarge
Try this stack yourself
- Railway · Deploy something like this on Railway: spin up PostgreSQL plus your app in a few clicks. New accounts get $20 in credit (applied when you pick a paid plan).
Railway isn't part of PlanetScale's setup in this story. It's just an easy place to try the same building blocks.
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