Laggy Ubuntu 18.04 VPS Server - need help

[Goro88]

Hi,

i had serval Days Problems with my VPS. I checked all config Files with plesk and cant find any issue.
But my Wordpress Pages are very slow.

I deactivated all Plugins, and more, but no luck. VPS is slow.

Can anyone help me to troubleshoot?


Here for example a fresh installed Wordpress with pingdom Test Result:
New Test Site:

https://bit.ly/3yCeZFU

I placed htaccess and gzip in php Section but iw was not helping, too. Installed WP Rocket and more.














My VPS: VPS M SSD from Contabo.com

6 vCPU Cores

16 GB RAM

400 GB SSD

400 Mbit/s Port

 

[Goro88]

For example another Website on VPS: https://bit.ly/3flScq7

 

[pitza]

Hi,

i had serval Days Problems with my VPS. I checked all config Files with plesk and cant find any issue.
But my Wordpress Pages are very slow.

I deactivated all Plugins, and more, but no luck. VPS is slow.

Can anyone help me to troubleshoot?


Here for example a fresh installed Wordpress with pingdom Test Result:
New Test Site:

https://bit.ly/3yCeZFU

I placed htaccess and gzip in php Section but iw was not helping, too. Installed WP Rocket and more.














My VPS: VPS M SSD from Contabo.com

6 vCPU Cores

16 GB RAM

400 GB SSD

400 Mbit/s Port

I'm not a technical person. The problem might be Contabo. I had the same issue until I changed providers.
Hope someone here can figure it out and give you good advice.

 

[pitza]

I'm not a technical person. The problem might be Contabo. I had the same issue until I changed providers.
Hope someone here can figure it out and give you good advice.

Hi,

i had serval Days Problems with my VPS. I checked all config Files with plesk and cant find any issue.
But my Wordpress Pages are very slow.

I deactivated all Plugins, and more, but no luck. VPS is slow.

Can anyone help me to troubleshoot?


Here for example a fresh installed Wordpress with pingdom Test Result:
New Test Site:

https://bit.ly/3yCeZFU

I placed htaccess and gzip in php Section but iw was not helping, too. Installed WP Rocket and more.














My VPS: VPS M SSD from Contabo.com

6 vCPU Cores

16 GB RAM

400 GB SSD

400 Mbit/s Port

I will add.... I had the same VPS with the same specs from Contabo and had issues with it

 

[cybercliff]

im using contabo and using Wordops but no problem with them.

 

[Goro88]

I reinstalled the Server with cent OS 8 instead of Plesk 18.04 and now its working good.

 

[NostraDumbAss]

If you ever ran into the similar problem, use these commands to check what could be slowing down your server:
in your terminal type:

top

this shows the status of web servers like apache/nginx/ and mysql + ...
you can see how much resources they are using and how much of your CPU is being used by each one of them.

sar -r

this helps you to monitor the amount of RAM being used.
Note that it's always a good idea to enable Error Logs to help you understand the problem.
Best of luck to you

 

[ChainofChaos]

You are not the first who complain about it. From Trustpilot review, some customer also complains about laggy VPS. I mean you get what you paid for. VPS for that price and specs like that isn't quite profitable. Contabo probably the cheapest provider among others. If you want to have a better VPS you should change provider. Try digitalocean ,vultr, or azure they are the most popular and reputable providers.

 

[Goro88]

If you ever ran into the similar problem, use these commands to check what could be slowing down your server:
in your terminal type:

top

this shows the status of web servers like apache/nginx/ and mysql + ...
you can see how much resources they are using and how much of your CPU is being used by each one of them.

sar -r

this helps you to monitor the amount of RAM being used.
Note that it's always a good idea to enable Error Logs to help you understand the problem.
Best of luck to you

today my sites are very slow and runs in timeout. i checked you top entry and it loks:



I think mariadb 50-70% of CPU is toooo much for 6 wordpress Sites?

 

[ChainofChaos]

today my sites are very slow and runs in timeout. i checked you top entry and it loks:



I think mariadb 50-70% of CPU is toooo much for 6 wordpress Sites?

Do you use default config? Don't use it. You need to adjust some settings for MariaDB. You can search it.

 

[NostraDumbAss]

today my sites are very slow and runs in timeout. i checked you top entry and it loks:



I think mariadb 50-70% of CPU is toooo much for 6 wordpress Sites?

For 6 websites, depends on how many cpu cores you have + installed ram.
It's normal to see mysql rise up to 60% usage of cpu but that's just for few seconds. I'm guessing you're using Apache, I don't know what configurations you have for your server block, but I suggest you use nginx or varnish for reverse proxy (only caching)
Also note that control panels such as Cpanel, direct admin and ... use some of your resources as well so you need to have at least 4gb ram.

 

[Goro88]

For 6 websites, depends on how many cpu cores you have + installed ram.
It's normal to see mysql rise up to 60% usage of cpu but that's just for few seconds. I'm guessing you're using Apache, I don't know what configurations you have for your server block, but I suggest you use nginx or varnish for proxy (only caching)
Also note that control panels such as Cpanel, direct admin and ... use some of your resources as well so you need to have at least 4gb ram.

im using nginx. The last time i had problems. Las bottlenec is the mysql i think. But i doenst know why... i tested other vps an there is working all perfect.

i think im go to new provider.

 

[NostraDumbAss]

im using nginx. The last time i had problems. Las bottlenec is the mysql i think. But i doenst know why... i tested other vps an there is working all perfect.

i think im go to new provider.

It's always a good idea to use nginx for high traffic websites. Don't forget about memcached for nginx, it really makes a difference.
If you have any other questions, I'd be happy to help as long as I'd know about it
Good luck

 

[MaxEg_127]

Hello,

I guess you are using Rehub theme.
I am actualy using the same theme in contabo VPS and if you follow the instruction in the link bellow

URL : how to optimize

I am sure you can get grade A or B depend on your content.
PS: I recommendyou to upgrade your VPS drive to Fast NVMe Storage


Good luck

 

[WebSpider]

Try Amazon EC2 bro...
+ Network Speed (Contabo Maximum 1 Gbit/s Port, but its Amazon's Minimum speed)
+ Content Delivery

 

[cesareborgia]

Stop all websites.
Then, try the config in the prints on one website (reboot after save) and let the others off for now.
See how it goes.
If it's ok, do the same for another. And another.

If it still doesn't work, contact Contabo (sh** happens in every provider).

You can test litespeed too meanwhile to see how it goes.

And take a print of the database section on plesk.

https://i.ibb.co/KmXn0Yq/ab2.png

https://i.ibb.co/4KL07k6/ab1.png

Edit. Just saw it now how old this is. Thank you for the dig mate lol.

 

[Stealth]

You using PHP 8 (i don´t know why), yesterday I deleted totally v8. Not 100% work with WP plugins and themes (and all is updated). Website is faster with PHP 7.4 and without Redis (not needed in Plesk, Nginx cache is faster than Redis).

 

[Lakuma]

You using PHP 8 (i don´t know why), yesterday I deleted totally v8. Not 100% work with WP plugins and themes (and all is updated). Website is faster with PHP 7.4 and without Redis (not needed in Plesk, Nginx cache is faster than Redis).

PHP 7.4 is no longer supported and is slower than PHP 8.0 and PHP 8.1.

You might want to give this a good read: https://kinsta.com/blog/php-benchmarks/

It's the plugins that you are using that haven't been updated or optimized to utilize PHP 8.x

 

[Stealth]

PHP 7.4 is no longer supported and is slower than PHP 8.0 and PHP 8.1.

You might want to give this a good read: https://kinsta.com/blog/php-benchmarks/

It's the plugins that you are using that haven't been updated or optimized to utilize PHP 8.x

You tested in real world? I think no... In real PHP 7.4 get a little faster than with 8.0.
And when you can´t read "I have updated all plugins". When set 8.0 all seems work fine, but when updating xml feed some images missing, unknown errors... In debug no information... Switch back to 7.4 all works like clock.