ESXi CPU Usage reporting in vCenter 6.0

[sureshadmin2011]

We had a ESXi 5.5 cluster which has 8 hosts and the CPU usage (NOT speaking about CPU Util) was around 50% for each host.

We upgraded the vCenter and ESXi to 6.0 version. vCenter build 3339083 and ESXi build 3568940.

Right after upgrading the CPU usage for each host stands steady at 100% at vCenter and the ESXtop still shows %USED as around 50% as before.

In vCenter, for CPU usage reatime data, there are 32 cores (0 -31) all have average of around 50% but when i select host entry the usage is 100%.

Confused how 32 cores are showing up 50% average and the host entry which is a sum of all core entry shows 100% usage after upgrading to ESXi 6?

Whether to believe ESXTOP or vCenter performance data?

[batuhandemirdal]

You can use it for 3rd party software. Vrops or veamone.

[sureshadmin2011]

VROPS just picks same stats as vCenter so no use.

[DanielMartini]

Hi Sureshadmin,

Do you have hyperthreading enabled?

[sureshadmin2011]

yes i have it enabled

[vijayrana968]

Have you tried restarting management agent on a host and then checked resource usage on vCenter ?

[sureshadmin2011]

done. no luck.

[swilmann]

Can you post an output of your ESXTop and and some Virtual center screen shots?