Most of these, like js1_5/Regress/regress-169559.js (which checks that global access is less than 2.5 times slower than local access), are useless. They should be examined and killed as necessary.
Yes, please. I would be surprised if most of them haven't been turned off already.
Created attachment 650416 [details] [diff] [review] kill most js performance tests Here is a patch removing all the tests that test BigO behavior. Of performance.tests, I left two leak tests and one of Date resolution. In theory, I suppose the leak tests are still applicable, but they definitely take a long time to run. Don't know about Date resolution. Comments welcome.
My favorite is one that tests that decompilation is quadratic. :)