Apache Worker and Prefork both defined

Question

The following is a segment from a current Apache installation I'm attempting to decipher for bad performance. I noticed the below, both uncommented:

<IfModule mpm_prefork_module>
    StartServers          5
    MinSpareServers       5
    MaxSpareServers      10
    MaxClients          200
    MaxRequestsPerChild   0
</IfModule>

<IfModule mpm_worker_module>
    StartServers          2
    MaxClients          150
    MinSpareThreads      25
    MaxSpareThreads      75 
    ThreadsPerChild      25
    MaxRequestsPerChild   0
</IfModule>

When prefork and worker are both defined, what happens? We're using PHP, so I assume that prefork would be what we want.

score 1 · Accepted Answer · answered Jul 27 '11 at 14:12

1

When prefork and worker are both defined, what happens? We're using PHP, so I assume that prefork would be what we want.

Exactly. You can confirm with:

# apachectl -l

or

# httpd -V

answered Jul 27 '11 at 14:12

quanta

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`apache2 -V` shows `-D APACHE_MPM_DIR="server/mpm/prefork"`. Thanks! – Hyppy Jul 27 '11 at 14:20
if you are using apache2 - apache2ctl -l (part of the apache2.X-common package on Ubuntu) – Jeremy Hajek Apr 05 '14 at 03:17

Apache Worker and Prefork both defined

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