where can i get GPU utilization metrics in vsphere api?

Hi,

I have an vsphere server 6.0 with nvidia grid cards. I want to take utilization statistics for GPU using vSphere java sdk. I have checked vsphere api and found HostGraphicsInfo object which will gives some basic informations but I need uitlization statistics like volatile utilization and more. Where can i get this info from vsphere api.?

Thanks & Regards,

karthika