Load Test Planner
Plan measured requests, iterations and explicit closed or open schedules.
Try before you buy.
- Free preview: the chosen target request rate; complete capacity, schedule and tool exports stay locked.
- Locked until you unlock it: download and copy.
- Unlock: Pro pass, ₹179 for 30 days or ₹79 for 1 week, a one-time payment that never renews. Unlock: Pro pass, $5.99 for 30 days or $2.99 for 1 week, a one-time payment that never renews.
Ways to unlock shows how to get the full result.
Printing this result is locked in the free preview.
Your source and options
Synthetic starting inputs are editable arithmetic examples. Mean-value estimates prove neither an SLO nor actual production capacity.
Current result
The free preview shows part of the result; a Pro pass opens all of it and every export. Saving your own source and settings needs no pass.
Locked in the free preview. Opens the ways to unlock this result.
Locked in the free preview. Batch runs unlock with a pass.
Locked in the free preview. Query results unlock with a pass.
About the Load Test Planner
Plan a scenario from daily requests and a peak factor, an entered request rate or reverse VU capacity. Mean response and think time have explicit units, and requests per iteration stay distinct from iteration arrivals. The rounded request target feeds all downstream VU estimates. Build ramp, steady, spike and recovery stages, inspect their chart and export k6 scenarios, JMeter thread-group settings or a Locust load shape. Optional instance estimates use measured capacity/utilization. Formulas are shown; a Pro pass opens full results/exports. This is not a latency or production-capacity guarantee.
How to use it
- Choose daily traffic, rate or reverse VUs; enter response/think seconds and requests per iteration.
- Choose closed VUs or open iteration arrivals, then review the rounded target and capacity estimates.
- Enter positive-duration ramp, steady, spike and recovery stages; the chart and exports keep the selected model explicit.
- Optionally enter measured per-instance RPS/utilization. With a Pro pass export tool settings and validate using authorized measurements.
Sources and applicability
Little’s law reference. k6 open/closed models. Arrival allocation.
Limitations
- Mean Little-law estimates need a stable measured boundary; they prove no SLO or guaranteed arrival capacity.
- Stock JMeter threads and Locust users are closed models. Open-rate conversions are labelled mean-user estimates; k6 arrivals pace themselves.
Privacy
On this device; its files download once
Your traffic figures, stages and the plan made from them stay on this device.
Frequently asked questions
What do I get without a pass?
Without a pass, Load Test Planner shows the chosen target request rate; complete capacity, schedule and tool exports stay locked. Until you unlock it, the result can’t be downloaded or copied. A Pro, Premium or Ultimate pass, a one-time payment that never renews, unlocks the full result. The pricing page lists the passes and their prices.
Why are active requests and VUs different?
Active requests use arrival rate×response time. Closed VUs also spend think time inside an iteration, giving a different system boundary.
Is k6 arrival rate always requests per second?
It starts iterations per timeUnit. With multiple requests per iteration, convert the chosen request target to iteration rate first.