When looking at the %CPU utilization for system requests in Nexus, the values shown do not take into account the # CPUs on the box. Therefore values displayed can be highly inflated as they're based on % of single core. There could be many ways to remedy this. For example,
DECLARE @CoreCount INT = 1;
SELECT @CoreCount = COALESCE
(
( SELECT CAST(PropertyValue AS INT)
FROM [dbo].[tbl_ServerProperties]
WHERE PropertyName = 'cpu_count')
, ( SELECT MAX(cpu_count)
FROM [dbo].[tbl_dm_os_sys_info])
, 1
);
