jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.
jsperf.com URLs are mirrored at the same path, e.g:
https://jsperf.com/negative-modulo/2
Can be accessed at:
https://jsperf.app/negative-modulo/2
A benchmark to see if the size of strings stored in localStorage affects its read performance.
<script>
var small = "XXXXXXXXX-XXXXXXXXX-XXXXXXXXX-XXXXXXXXX-XXXXXXXXX-XXXXXXXXX-XXXXXXXXX-XXXXXXXXX-XXXXXXXXX-XXXXXXXXX-";
var medium = small + small + small + small + small;
var large = medium + medium;
var xlarge = large + large;
medium = xlarge + xlarge + xlarge + xlarge;
large = medium + medium + medium + medium;
xlarge = large + large + large + large;
localStorage.setItem("a", small);
localStorage.setItem("b", medium);
localStorage.setItem("c", large);
localStorage.setItem("d", xlarge);
</script>
localStorage.clear();
Ready to run.
Test | Ops/sec | |
---|---|---|
Read small value (100 chars) |
| ready |
Read medium value (500 chars) |
| ready |
Read large value (1000 chars) |
| ready |
Read xlarge value (2000 chars) |
| ready |
You can edit these tests or add more tests to this page by appending /edit to the URL.