Dear Users,
We have a critical ESXi host with important VM's but we are noticing a slowdown on our network and on the server it self.
So I have begun investing the problem and noticed that one server on the ESXi host has a high %ready time, see picture 1 below. 13855 / 20000 = 0,69275, which makes it 69% ready time.
The server has the following configuration, see picture 2 below.
After this was clear to me I monitored it with ESXTOP and saw that I have a high %cstp on one server, see picture 3 below, this indicates a high vCPU use but the server has only 2 vCPU's.
Now I was wondering do I need to reduce the Number of virtual sockets or do I need to reduce the Number of cores per socket?
Or do you people think its better to reduce the Total number of cores?
The server is a critical application server where loads of traffic goes true.
Kind regards,
Martijn