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

Floor Performance (v3)

Revision 3 of this benchmark created by Paul H Howells on May 23, 2013

Description

added a couple more bitwise based tests to Sam’s jsperf.com/floor-performance/2

Test runner

Ready to run.

Testing in
Test		Ops/sec
Math.floor	`eval("var b = Math.floor(10.5);");`	ready
pipe \|0 floor	`eval("var b = (10.5)\|0");`	ready
~~ floor	`eval("var b = ~~(10.5)");`	ready
>> floor	`eval("var b = (10.5)>>0");`	ready

Revisions

You can edit these tests or add more tests to this page by appending /edit to the URL.

Revision 1: published by Sam on March 28, 2013
Revision 2: published by Sam on April 3, 2013
Revision 3: published by Paul H Howells on May 23, 2013
Revision 4: published on October 10, 2013
Revision 5: published on April 26, 2014