Benchmark: generate ranges - MeasureThat.net

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Tests:

array.from mapped fn
const generateChannelRanges = (startFrequency, channelWidth, count) => { return Array.from({ length: count }, (_, i) => { const start = startFrequency + i * channelWidth; return { start, end: start + channelWidth }; }); }; const channelRanges = { 320: [...generateChannelRanges(5945, 320, 3), ...generateChannelRanges(6105, 320, 3)].sort( (a, b) => a.start - b.start ), 240: generateChannelRanges(5490, 240, 1), 160: [ ...generateChannelRanges(5170, 160, 1), ...generateChannelRanges(5490, 160, 1), ...generateChannelRanges(5945, 160, 7), ], 80: [ ...generateChannelRanges(5170, 80, 2), ...generateChannelRanges(5490, 80, 3), ...generateChannelRanges(5735, 80, 1), ...generateChannelRanges(5945, 80, 14), ], 40: [ ...generateChannelRanges(2402, 40, 2), ...generateChannelRanges(5170, 40, 4), ...generateChannelRanges(5490, 40, 6), ...generateChannelRanges(5735, 40, 2), ...generateChannelRanges(5945, 40, 29), ], 20: [ ...generateChannelRanges(2402, 20, 4), ...generateChannelRanges(5170, 20, 8), ...generateChannelRanges(5490, 20, 12), ...generateChannelRanges(5735, 20, 5), ...generateChannelRanges(5925, 20, 60), ], };
old impl
const generateChannelRanges = (startFrequency, channelWidth, count) => { let frequency = startFrequency; const ranges = []; for (let i = 0; i < count; i++) { ranges.push({ start: frequency, end: frequency + channelWidth }); frequency += channelWidth; } return ranges; }; const channelRanges = { 320: [...generateChannelRanges(5945, 320, 3), ...generateChannelRanges(6105, 320, 3)].sort( (a, b) => a.start - b.start ), 240: generateChannelRanges(5490, 240, 1), 160: [ ...generateChannelRanges(5170, 160, 1), ...generateChannelRanges(5490, 160, 1), ...generateChannelRanges(5945, 160, 7), ], 80: [ ...generateChannelRanges(5170, 80, 2), ...generateChannelRanges(5490, 80, 3), ...generateChannelRanges(5735, 80, 1), ...generateChannelRanges(5945, 80, 14), ], 40: [ ...generateChannelRanges(2402, 40, 2), ...generateChannelRanges(5170, 40, 4), ...generateChannelRanges(5490, 40, 6), ...generateChannelRanges(5735, 40, 2), ...generateChannelRanges(5945, 40, 29), ], 20: [ ...generateChannelRanges(2402, 20, 4), ...generateChannelRanges(5170, 20, 8), ...generateChannelRanges(5490, 20, 12), ...generateChannelRanges(5735, 20, 5), ...generateChannelRanges(5925, 20, 60), ], };

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
array.from mapped fn
old impl

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:135.0) Gecko/20100101 Firefox/135.0

Browser/OS: Firefox 135 on Mac OS X 10.15

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old impl

341K/s

array.from mapped fn

242K/s

View exact numbers

Test name	Executions per second
✓ old impl	341,067 Ops/sec
array.from mapped fn	241,747 Ops/sec

generate ranges (version: 1)

Comparing performance of: `array.from mapped fn vs old impl`

Created: one year ago by: Guest

Go to the latest result

array.from mapped fn

old impl

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

generate ranges (version: 1)

Comparing performance of: array.from mapped fn vs old impl

Created: one year ago by: Guest

Go to the latest result

array.from mapped fn

old impl

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `array.from mapped fn vs old impl`