Server load graph

[UtilisateurCXS]

Does anyone know what this graph represents and what the unit is in the left-hand column?

 

[Impact]

https://en.wikipedia.org/wiki/Load_(computing)

 

[UtilisateurCXS]

Thanks you.

 

[spirit]

1= 1 core, 2= cores, ...

the load average shouldn't be more than the total number of cores of your host.