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If not the interviewees. I was reading this and thinking "holy crap this is a meaty interview" while simultaneously thinking "there's no way Mark won't find thi

by alttab 17y ago

If not the interviewees. I was reading this and thinking "holy crap this is a meaty interview" while simultaneously thinking "there's no way Mark won't find this girl and gut her." Maybe not because the information she gave was all that important (although the HPHP thing certainly is an interesting piece of information), but to make an example to other employees about babbling on about the internal workings of their enterprise. Chief Privacy Officer Chris Kelly might be paying her a visit shortly.

cag_ii 17y ago
> although the HPHP thing certainly is an interesting piece of information Except that the employees description of the differences between "scripted" and compiled languages leads me to think that this person doesn't really know much about programming languages.
- brown9-2 17y ago
  Sounds like he/she was really just trying to dumb it down for the interviewer, someone who didn't understand what "eyeball-tracking" was or thought that Facebook's servers were hosted in their offices.
  - alttab 17y ago
    I was thinking the same thing. I get the feeling the PHP is probably compiled into some C or C++ format. The speed increase would work wonders for the production server, and if you didn't change HPHP too much from regular PHP, you could still run interpreted for development. For scaling, I wouldn't be surprised if we started seeing hybrid models like this in the future.
kulkarnic 17y ago
Wellll.... I don't know if it's meaty at all. Nothing in there actually is revealing: yeah, they do eye-tracking. So does every serious outfit. They store all the data they create: yes, it's nearly free to do that (relatively speaking), and I'd be surprised if they didn't do it (nearly all graph algorithms they should employ will benefit from more data to train/test); they're creating Hyper-PHP--great etc, but you'd really think twice before creating your own site on PHP, so it's a non-issue for me at least. Bonus: I'm also certain they have their own front-end engineering which is speeding up javascript. Nearly everyone else does, and getting that 0.5s page-load will certainly need this boost.

by alttab 17y ago

cag_ii 17y ago

> although the HPHP thing certainly is an interesting piece of information Except that the employees description of the differences between "scripted" and compiled languages leads me to think that this person doesn't really know much about programming languages.

brown9-2 17y ago
Sounds like he/she was really just trying to dumb it down for the interviewer, someone who didn't understand what "eyeball-tracking" was or thought that Facebook's servers were hosted in their offices.
- alttab 17y ago
  I was thinking the same thing. I get the feeling the PHP is probably compiled into some C or C++ format. The speed increase would work wonders for the production server, and if you didn't change HPHP too much from regular PHP, you could still run interpreted for development. For scaling, I wouldn't be surprised if we started seeing hybrid models like this in the future.

kulkarnic 17y ago

Wellll.... I don't know if it's meaty at all. Nothing in there actually is revealing: yeah, they do eye-tracking. So does every serious outfit. They store all the data they create: yes, it's nearly free to do that (relatively speaking), and I'd be surprised if they didn't do it (nearly all graph algorithms they should employ will benefit from more data to train/test); they're creating Hyper-PHP--great etc, but you'd really think twice before creating your own site on PHP, so it's a non-issue for me at least. Bonus: I'm also certain they have their own front-end engineering which is speeding up javascript. Nearly everyone else does, and getting that 0.5s page-load will certainly need this boost.