I didn’t want to hijack the Optimizer+ thread so I’m creating a new one,
based on the apparent level of interest in ZTS. This isn’t an RFC to
remove ZTS by any stretch, but I **am** a bit confused about why people are
still using ZTS.
A bit of background. I started the ZTS project (based on initial work by
Shane Caraveo more than a decade ago), and invested countless hours in
pushing it all throughout PHP. So I really hold absolutely no grudge
against it, quite the contrary… However, many years ago, I came to the
conclusion that it was a bit of a lost cause trying to weed out all the
thread safety issues from everywhere – and that a simpler, more elegant
solution exists in the form of FastCGI.
Which brings me to the subject of this mail – why are you using ZTS PHP
instead of single threaded PHP? The reasons not to use it are few but
fairly major – it’s significantly slower than the non-ZTS PHP, and it’s
significantly less robust in the sense that a single bug somewhere can
bring down an entire server (or at least a bunch of many different
threads). What are your reasons to choose it over FastCGI?
Zeev