Re: Apache + mod_php performance

On Fri, 11 Oct 2024 13:26:04 -0500, Craig A. Berry wrote:

I don't think socket sharing is a privilege any more than file sharing
is; more likely it's just a hint to the driver that it needs to do extra
work to keep its internal state consistent when two processes are
accessing it.

Surely having channels from two processes assigned to the same device is
no different, as far as the device is concerned, from having two channels
assigned to it in the same process. In VMS, process scheduling is
completely decoupled from I/O management; once an I/O is queued, nothing
further happens to affect the process until the completed request gets
back to the I/O post-processing system, at which point it no longer
concerns the device driver any more.

At least, that’s how it used to work in the VMS of old.