You have a typo: "requests per second increase to approximately 25,567 at the 97.5th percentile." This is for 50th percentile. For 97.5th percentile you actually have 26,191!

If you are more advanced... And understand the examples above. You could also checkout the Platformatic code, if you want to see a template style of implementing it, thus it can be used in a very general way: https://github.com/platformatic/platformatic/blob/b0cbad33354dacf2f018ddf4d62bee4f412b420c/packages/sql-mapper/lib/cache.js#L2 Then the setupCache method is used here: https://github.com/platformatic/platformatic/blob/b0cbad33354dacf2f018ddf4d62bee4f412b420c/packages/sql-mapper/mapper.js#L10

I guess implement the package yourself in your Fastify app: https://github.com/mcollina/async-cache-dedupe I guess just adding a cache behind each DB call? See some TS example code: https://github.com/mcollina/async-cache-dedupe?tab=readme-ov-file#typescript Here another example implementation: https://github.com/Shyam-Chen/Fastify-Starter/blob/a1746035a40bf49d5d095b0b2c16cfa5e2493a40/app/src/routes/hello-world/caching-dedupe/%5Bid%5D-redis/%2Bhandler.ts#L4

Well.. Try to use SWC! You can even use SWC with ts-node/esm if you wish. Much faster build times. like 30-40x faster!

Also... when using TS try to use SWC compiler, which is like 50 times faster than tsc. Boosting your rabbit development cycle!