Fuchsia

Fuchsiaperf format for performance test results

This document describes the JSON schema that Fuchsia benchmark results must follow in order to be uploaded to the performance dashboard.

JSON description

[
    {
        "label":       string     // Name of the test case in the performance dashboard.
        "test_suite":  string     // Name of the test suite in the performance dashboard.
        "unit":        string     // One of the supported units (see below)
        "values":      [v1, v2..] // Numeric values collected in this test case
    },
    {
        ...
    }
]

Note that having multiple values in the values array is somewhat vestigial. The consumers of fuchsiaperf files usually just use the mean of the values array, and the array often just contains a single value.

Supported units

In order to convert benchmark results to the format required by the performance dashboard, unit must be one of the following strings, which describe the units of the result's values.

  • nanoseconds or ns
  • milliseconds or ms
  • bytes/second
  • bytes

Example

[
    {
        "label": "Channel/WriteRead/64bytes",
        "test_suite": "fuchsia.microbenchmarks",
        "unit": "nanoseconds",
        "values": [105.45, 697.916667, 672.743056]
    },
    {
        "label": "Channel/WriteRead/1024bytes",
        "test_suite": "fuchsia.microbenchmarks",
        "unit": "nanoseconds",
        "values": [102.23, 1004.340278, 906.250000]
    }
]

See also