Benchmark: set vs subarray-set vs pre-allocated subarray-set

Script Preparation code:

var start = 3e6;
var end = 4e6;

// for set
var array1 = Float32Array.from({length: 1e6}, Math.random);
var array2 = Float32Array.from({length: 1e6}, Math.random);

// for subarray-set
var array3 = Float32Array.from({length: 1e6}, Math.random);
var array4 = Float32Array.from({length: 10e6}, Math.random);

// for pre-allocated subarray-set
var array5 = Float32Array.from({length: 1e6}, Math.random);
var array6 = Float32Array.from({length: 10e6}, Math.random);
var subarray6 = array6.subarray(start, end);

Tests:

set
array1.set(array2, 0);
subarray-set
array3.set(array4.subarray(start, end), 0);
pre-allocated subarray-set
array5.set(subarray6, 0);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
set
subarray-set
pre-allocated subarray-set

Fastest: N/A

Slowest: N/A

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Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/112.0.0.0 Safari/537.36

Browser/OS: Chrome 112 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
set	1503.3 Ops/sec
subarray-set	1543.5 Ops/sec
pre-allocated subarray-set	1514.7 Ops/sec

set vs subarray-set vs pre-allocated subarray-set (version: 0)

Comparing performance of: set vs subarray-set vs pre-allocated subarray-set

Created: one year ago by: Registered User

Jump to the latest result

set

subarray-set

pre-allocated subarray-set

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A