The benchmark suite has been broken for a while, by several
refactorings (e.g. use of native Promise). This commit makes it
work again. We do not use it much, but maybe we should as it can
be useful to track changes (mostly in view renderers) that impact
performances.
With this commit, we introduce a benchmarking infrastructure: a new
controller, accessible at the route /web/benchmarks which will render a
new template (web.benchmark_suite).
This template uses benchmark.js and qunit.js to display a list of
benchmarking informations. For example, the number of op/s for
instantiating and destroying a list view.
I hope that this is the start of the beginning of taking the habit to
check our JS code performance sometimes, and making sure we do not have
large regression without a good reason.
Aaron Bohy