Question CPU Utilization limit for domains/subscriptions

[Moataz Muhammad]

Dears,

Last night a was facing a high CPU Usage process by apache, PHP-FPM, MariaDB I have used the CPU limitation of Plesk and it worked fine until I found one of the domains using 80% of CPU. so then would you please recommend the best CPU limitation per domain if I have 4 vCPUs?


Thank you.

 

[Moataz Muhammad]

Up.

 

[Bitpalast]

The limit depends on the number of websites you are serving. There is no general solution to this that fits all.

 

[Moataz Muhammad]

The limit depends on the number of websites you are serving. There is no general solution to this that fits all.

I have 10 websites per server, would you please tell me the exact recommendation of cpu limit?

And If possible would you please tell me how to calculate it.
Thanks in advance.

 

[Bitpalast]

As mentioned before, there is no general solution. If nine of the websites don't experience much traffic, it is very well possible to leave the major part of cpu power to the remaining one. If all experience a lot of traffic and consume a lot of cpu power, each should be limited to 1/10 (or less, because you need to take into account that the server itself needs some cpu power left for other business). There simply is no exact recommendation.

 

[OWEUX LLC]

I have 10 websites per server, would you please tell me the exact recommendation of cpu limit?

And If possible would you please tell me how to calculate it.
Thanks in advance.

there's a chance this may be what you are looking for:

(Plesk for Linux) Cgroups Manager

A website on a shared hosting can consume all system resources and disrupt the performance of other websites. This issue is known as the “noisy neighbor problem”. Plesk Cgroups Manager is an extension that helps you address this issue by managing the consumption of the CPU, RAM, and disk read...

docs.plesk.com