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Nicolas Grekas:
Making Symfony router lightning fast - 2/2
Feb 22, 2018 @ 18:54:30

Nicolas Grekas has posted the second part of his look at the work that was done to increase the performance on the router in version 4 of the Symfony framework. In part one he covered some of the basic changes made to the router for faster matching. In this latest article he covers some of the "tweaks" made on top of this work to help improve things even more.

In Making Symfony’s Router 77.7x faster - 1/2, we learned how to build a faster URL matcher, using hash-map lookups for static routes, and combined regular expressions for routes with placeholders, while preserving all the advanced features of the Symfony router. However, more work was needed for some real world apps, as at least one of them experienced a slow down. Let’s see how fixing this provided us with (one of) the fastest PHP routers out there.

He then starts working through some of the newer changes to help "reclaim" some of the performance loss in certain situations. He talks about same-prefix route ordering, subpatterns and placeholders to change how the combined regular expressions perform the matching on the incoming URL. The result is an even more performant routing system that's 77 times faster than what they started with.

tagged: symfony routing performance regularexpression regex improvement series part2

Link: https://medium.com/@nicolas.grekas/making-symfony-router-lightning-fast-2-2-19281dcd245b


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