IO related PHP API are a problem, one needs non-blocking functions for optimal performance.
Sorry, as HHVM doesn't expose libevent yet (at least last asked the devs on IRC), I moved some portions of my code to node.js for now. (plus HHVM relies itself on the older libevent 1.4, instead of the 2.x that PHP exposes as API)
I would be interested in the answer too. Maybe ask it on stackoverflow.com or so?
Sorry, as HHVM doesn't expose libevent yet (at least last asked the devs on IRC), I moved some portions of my code to node.js for now. (plus HHVM relies itself on the older libevent 1.4, instead of the 2.x that PHP exposes as API)
I would be interested in the answer too. Maybe ask it on stackoverflow.com or so?