Re: Apache + mod_php performance

On 9/25/2024 5:10 PM, Arne Vajhøj wrote:

It must be Apache.
 Apache on VMS is prefork MPM. Yuck.
 MaxSpareServers 10 -> 50
MaxClients 150 -> 300
 actually did improve performance - double from 11 to 22
req/sec.
 But the system did not like further increases. And besides
these numbers are absurd high to handle a simulator doing requests
from just 20 threads.
 But not sure what else I can change.

Does anyone know internals of Apache on VMS?
Based on some messages in error_log it looks like
it uses mailboxes APACHE$AWS_CONTROL_MBX_nn.
If every request result in mailbox comm between
master process and a child process, then that could
slow down things.
Arne