Re: Apache + mod_php performance

On 9/26/24 6:22 PM, Lawrence D'Oliveiro wrote:

On Thu, 26 Sep 2024 19:15:40 -0400, Arne Vajhøj wrote:
 

On 9/26/2024 4:40 PM, Lawrence D'Oliveiro wrote:

>
On Thu, 26 Sep 2024 09:44:14 -0500, Craig A. Berry wrote:

>
Whoever invented the term apparently thought fork() was the only
way to create a subprocess.

>
It is the most natural way in this case, because it creates a complete
copy of the parent process, which is what you want.
>

On VMS it will obviously use LIB$SPAWN or SYS$CREPRC.

>
Not only is that more expensive, it also requires additional setup to
recreate the effect of fork(2).

>
They have one big advantage over fork on VMS.
>
They exist!

 Not enough to make up for the performance disadvantage, though ...

The ability to restart Apache in a second or so on Linux rather than a
couple seconds on VMS is nice but has nothing to do with the problem
Arne reported, which is about performance after the worker processes are
started.