Re: About optimization

Tim Starling wrote: > Given this, sometimes it's easy to forget that PHP is pathologically > memory hungry, to the point of making simple tasks difficult or > impossible to perform in limited environments. It's the worst language > I've ever encountered in this respect. An array of small strings will > use on the order of 200 bytes per element. An array of integers will use > not much less. A simple object (due to being based on the same > inefficient data structure) may use a kilobyte or two. A zval is around 64 bytes. So, to use 200 bytes per string element, each of your strings must be around 136 chars long. For me, working in super high-load environments, this was never an issue because memory was always way more plentiful than cpu. You can only slice a cpu in so many slices. Even if you could run 1024 concurrent Apache/PHP processes, you wouldn't want to unless you could somehow shove 64 cpus into your machine. For high-performance high-load environments you want to get each request serviced as fast as possible and attempting to handle too many concurrent requests works against you here. -Rasmus