dev.serverless-cold-start Calculator
Calculates serverless cold start frequency, latency impact, and the cost-performance tradeoff of provisioned concurrency. Lambda cold starts add 200ms–2s latency depending on runtime (Java worst, Python/Node best) — provisioned concurrency eliminates cold starts at the cost of always-on pricing.
Inputs
- Memory Mb
- Reference formula or conversion factor shown for context.
- Code Size Mb
- Age in completed years. Many health and fitness formulas adjust for age.
- Runtime
- Reference formula or conversion factor shown for context.
- Invocations Hr
- Reference formula or conversion factor shown for context.
Results
- cold start latency (ms)
- Time from request initiation to response received. Composed of processing time, network round-trip, and queuing delay.
- warm invocation (ms)
- The value at the specified point or condition.
- avg latency est. (ms)
- Time from request initiation to response received. Composed of processing time, network round-trip, and queuing delay.
- runtime
- The computed duration or time value.
- provisioned concurrency
- Sample size or count used in the calculation.
- tip
- Gratuity amount — the suggested amount to add to the bill as a service tip.
development latency warm function start