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THE FEUTEX TOOLKIT

Partition Hot Key Skew

Estimate a hot partition load when one key dominates otherwise uniform traffic.

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FormulaHot partition operations = total*(hot/100+(1-hot/100)/partitions); Average partition operations = total/partitions; Hot-to-average load = hot/100*partitions+1-hot/100

Made for real tasks

  • Estimate a hot partition load when one key dominates otherwise uniform traffic.
Explore step-by-step workflows →

Worked example

Inputs

Partitions
16 partitions
One hot key traffic share
25 %
Total operations per second
16000 operations/s

Expected results

Hot partition operations
4750 operations/s
Average partition operations
1000 operations/s
Hot-to-average load
4.75 times

Load the example in the workspace to reproduce these results. Display rounding does not change the underlying calculation.

How to use this tool

  1. Enter partitions, one hot key traffic share, total operations per second in the displayed units.
  2. Calculate the scenario, then compare it with measurements before changing a system.

Try this example

{
  "partitions": 16,
  "hot": 25,
  "total": 16000
}

Accuracy and scope

One hot key, remaining keys uniformly hashed; adaptive partitioning and caching excluded.

Is my data uploaded?

This tool runs locally in your browser. Input and output are not sent to a processing server. Copy or download your result before leaving the page.