Batch Job Chunk Planner
Plan chunk count, tail size and parallel processing rounds.
Your inputs
Calculation results
Formula & assumptions
Chunks = ceiling(records/chunk size); rounds = ceiling(chunks/workers).
Values use the specified units. Calculations use floating-point arithmetic. Check input measurements and formula assumptions before applying the result.
Compare your scenarios
Save up to five results to compare changes side by side. Scenarios stay in this tab until you clear or reload it.
Using Batch Job Chunk Planner
Plan chunk count, tail size and parallel processing rounds.
- Enter records, chunk size, parallel workers, seconds per chunk using the units printed under each field.
- Choose Calculate, or enable live updates. Review the result labels and formula assumptions.
- Save scenarios to compare up to five variations, then copy the report or download JSON or CSV.
Example
Records: 10000 records Chunk size: 250 records Parallel workers: 4 workers Seconds per chunk: 2 seconds Chunks: 40 Last chunk records: 250 Processing rounds: 10 Ideal duration · seconds: 20
Questions & answers
What does Batch Job Chunk Planner calculate?
Plan chunk count, tail size and parallel processing rounds.
Which units should I enter?
Records uses records. Chunk size uses records. Parallel workers uses workers. Seconds per chunk uses seconds. Convert values to these units before calculating.
Which formula does it use?
Chunks = ceiling(records/chunk size); rounds = ceiling(chunks/workers).
What does the included example show?
Records: 10000 records; Chunk size: 250 records; Parallel workers: 4 workers; Seconds per chunk: 2 seconds. Result: Chunks = 40; Last chunk records = 250; Processing rounds = 10; Ideal duration · seconds = 20.
Can I compare different settings?
Yes. Save a scenario, change the inputs and save another result. Up to five scenarios are compared in this tab; they disappear when you reload or leave.
Can I export the calculation?
Copy the JSON report or download JSON and CSV with inputs, result labels and numeric values. Processing uses local JavaScript; no calculation request is sent to our server. Displayed values use up to 10 significant digits; exports retain JavaScript numeric precision.
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