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THE FEUTEX TOOLKIT

Roofline Performance Bound

Compare arithmetic intensity against compute and memory throughput ceilings.

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01 Your input
02 Your result
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Formularate≤min(peakCompute,bandwidth×intensity)
Sources and model references

Worked example

Inputs

Operation count
1000000000 FLOP
Memory traffic
100000000 bytes
Peak compute rate
1000000000000 FLOP/s
Memory bandwidth
100000000000 bytes/s

Expected results

Arithmetic intensity
10 FLOP/byte
Roofline rate ceiling
1e+12 FLOP/s
Optimistic execution lower bound
0.001 s

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 the labeled inputs in the indicated units.
  2. Calculate and compare every output against the stated model assumptions.

Try this example

{
  "flops": 1000000000,
  "bytes": 100000000,
  "compute": 1000000000000,
  "bandwidth": 100000000000
}

Accuracy and scope

Ideal compute/memory overlap; excludes latency, synchronization and inefficient instructions. Simplified analytical model; not a design recommendation or safety certification.

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.