Slow server, very high memory usage what to do?

[BarryD]

Hello,

One of my wordpress websites was reacting very slow and i thought i was a particular theme. But when i checked the plesk panel > health monitor i notice this, see images.
- Now a lot of my websites are acting slow
- None of my websites has high traffic
- I host 55 websites
- Is it possible that the "slowness" just happens at one particular website first? And others react slow a couple of days later?





What can i do on my own? It's saturday and i can't reach my hosting company and i need to develop another website on sunday?
Which log files should i look into? If i have a solution how can i prevent this in the future?

My own server maintenance normally just exists of deleting huge error_log files per domain.


Any tips, suggestions?
Regards

 

[InderS]

Hello,

I will suggest you please monitor your server with the top and ps aufx command and try to find out which process is using hing memory on your server.