CPU Capacity Calculator

Estimate service throughput limits based on CPU capacity assumptions.

CPU capacity

CPU coresTarget utilization (%)RPS per core

Result

Effective cores

2.8

Estimated max RPS

336

How it works

This calculator converts CPU core budget and target utilization into effective compute, then estimates maximum throughput using an RPS-per-core factor.

Formula

effective_cores = total_cores * utilization_pct
max_rps = effective_cores * rps_per_core

Benchmark your own workload to derive realistic RPS-per-core values.

Example

With 8 cores, 70% target utilization and 120 RPS/core, estimated capacity is about 672 RPS.

FAQ

Is RPS per core fixed?

No. It depends on workload profile, language runtime and dependency mix.

Can I use vCPU?

Yes, if your benchmark uses the same compute unit.

Should I reserve headroom?

Yes, avoid planning at 100% utilization in production.