Re: [PHP4BETA] ZTS mode sooo much slower?

> It can actually (C++ compilers tend to be MUCH worse than C compilers, > especially when it comes to optimizations). We need to see the non thread > safe stats though, if the scanner functions take like 1%, it makes no > sense. If they take 30%, it's more than reasonable. I would be interested in seeing a system call profile of the two compared against each other. That might shed some light on things as well. If the threaded version is going to eat up a lot more resources than the non-threaded, it is sort of pointless. At least on Unix, the whole point of going to a threaded web server architecture is to reduce resource usage. There is no real inherent performance to be gained by going threaded, but the fact that on many operating systems a thread is lighter and is better able to share resources with other threads means that you can have more threads active and thus handle more concurrent requests and thus scale better. So far in testing the threaded Apache 2.0 we are seeing major improvements on AIX and not much difference on Linux yet. For the Linux case this is mostly because there is so little difference between a thread and a process on that OS. It is going to be interesting to see what sort of numbers we can get out of Apache2/PHP when we get that combination working. -Rasmus