Performance Optimisations

[balupton]

• http://jsperf.com/queryengine-or
• http://jsperf.com/queryengine-and
• http://jsperf.com/queryengine-and-one
• http://jsperf.com/queryengine/7
• http://jsperf.com/scope-vs-args

[balupton]

Hey @davidgtonge, not sure if you are still interested but I've been working a lot on improving the performance of query engine based on the work you did on your own branch.

It seems the biggest performance gain was from pre-compiling queries. Which I've now landed in the dev branch, and it has risen from an abysmal 1/10th of the performance of your branch to a speedy 2/3rd of the performance of your branch. However, there is still that great 1/3rd left and I just can't figure out what it could be.

If you have a moment, and are so inclined, I'd love for your advice on this, as I'm really at a loss here. These are the tests I'm using: http://jsperf.com/queryengine/7 - QEB is yours, QED is dev, QEM is master, QEO is the old 1.2 version.

Truly, thanks.