There are no "best" values, either way; it depends on your traffic pattern.
Use mod_status with ExtendedStatus on, and monitor /server-status to check how many idle workers you have, over time. On Thu, Sep 14, 2023 at 5:45 PM Stormy <storm...@stormy.ca> wrote: > On 2023-09-14 16:01, Jason Long wrote: > > Hello, > > Thanks again. > > How about the other parameters? For example, how can I estimate the best > > value for "MaxRequestsPerChild", "ThreadsPerChild" and etc.? > > What is wrong with the default values? Why do you want to "estimate"? > Have you tried different values? If so, what was the upside/downside of > your trials? Logs? Stats? > > You say somewhere below that your server "uses WordPress, so it also has > PHP and MySQL." Fine, these are services (memory and CPU cycles) > outside the scope of Apache/httpd which just "serves" what it is given > to "serve." > > As an example, I have just rewritten a quite big (474 Gb) WP website in > html5 with minimal php and js. Result: client output identical, Apache > throughput just over 90% lower. YMMV > > Good luck, > Paul > > > > > > On Thu, Sep 14, 2023 at 10:27 PM, Frank Gingras > > <thu...@apache.org> wrote: > > Just comment out the LoadModule line for prefork, and uncomment the > > line for event. > > > > There is no "template"; you just need to tweak event to spawn more > > workers if needed, but the default settings should be fine for small > > volumes. > > > > The prefork mpm should really be avoided at this point, as it spawns > > a separate process for every single HTTP request. > > > > On Thu, Sep 14, 2023 at 2:47 PM Jason Long > > <hack3r...@yahoo.com.invalid> wrote: > > > > Hello, > > Thanks again. > > So, I must remove the "mpm_prefork_module" section. Am I right? > > > > Can you show me an Apache configuration template for use with > > Wordpress? > > > > When I must use "mpm_prefork_module"? > > > > > > On Thu, Sep 14, 2023 at 4:24 PM, Frank Gingras > > <thu...@apache.org <mailto:thu...@apache.org>> wrote: > > 500MB of RAM for the httpd processes, yes. The rest of the > > RAM will go towards php and MySQL. > > > > Since wordpress is involved, you'll want to use the event > > mpm (nor prefork, nor event), proxy_fcgi and php-fpm. See: > > > > https://cwiki.apache.org/confluence/display/HTTPD/PHP-FPM > > <https://cwiki.apache.org/confluence/display/HTTPD/PHP-FPM> > > > > > > > > On Thu, Sep 14, 2023 at 6:21 AM Jason Long > > <hack3r...@yahoo.com <mailto:hack3r...@yahoo.com>> wrote: > > > > Hello, > > Thank you so much for your reply. > > Can you tell me more about "It should run well under > > 500MB even with thousands of workers."? Do you mean 500 > > MB memory? > > > > My server uses WordPress, so it also has PHP and MySQL. > > What parameters should I change? > > > > What is the formula for calculating "mpm_prefork_module" > > and "mpm_worker_module" > > parameters? > > > > > > > > On Wed, Sep 13, 2023 at 5:00 PM, Francois Gingras > > <francois.ging...@gmail.com > > <mailto:francois.ging...@gmail.com>> wrote: > > You'll want to make sure you're using the event mpm, > > in any case. It should run well under 500MB even > > with thousands of workers. > > > > If php or another dynamic language is involved, then > > the answer will depend on what you use. You should > > also consider if other services use RAM, such as a > > rdbms. > > > > > > On Wed, Sep 13, 2023 at 8:52 AM Jason Long > > <hack3r...@yahoo.com.invalid> wrote: > > > > Hello, > > My server has 6 GB RAM and 4 virtual CPUs. I > > want to know How can I change the following > > settings for better performance? > > > > > > Timeout 45 > > KeepAlive On > > MaxKeepAliveRequests 100 > > KeepAliveTimeout 15 > > > > <IfModule mpm_prefork_module> > > StartServers 3 > > MinSpareServers 3 > > MaxSpareServers 3 > > ServerLimit 50 > > MaxClients 50 > > MaxRequestsPerChild 1000 > > </IfModule> > > > > <IfModule mpm_worker_module> > > StartServers 3 > > MaxClients 50 > > MinSpareThreads 3 > > MaxSpareThreads 3 > > ThreadsPerChild 25 > > MaxRequestsPerChild 1000 > > </IfModule> > > > > > > I'm thankful if anyone can guide me to choose > > the above settings according to my server > > hardware specifications. If you know of other > > settings, please share. > > > > > > Thank you. > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: > > users-unsubscr...@httpd.apache.org > > <mailto:users-unsubscr...@httpd.apache.org> > > For additional commands, e-mail: > > users-h...@httpd.apache.org > > <mailto:users-h...@httpd.apache.org> > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org > For additional commands, e-mail: users-h...@httpd.apache.org > >
