On Fri, Sep 15, 2023 at 1:31 AM, Frank Gingras<thumbs@xxxxxxxxxx> wrote: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 <stormy22@xxxxxxxxx> 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
> <thumbs@xxxxxxxxxx> 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
> <hack3rcon@xxxxxxxxx.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
> <thumbs@xxxxxxxxxx <mailto:thumbs@xxxxxxxxxx>> 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
> <hack3rcon@xxxxxxxxx <mailto:hack3rcon@xxxxxxxxx>> 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.gingras@xxxxxxxxx
> <mailto:francois.gingras@xxxxxxxxx>> 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
> <hack3rcon@xxxxxxxxx.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.
>
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