PerfCounterInfo

The
PerformanceManager.perfCounter
property is an array of
PerfCounterInfo
data objects. Each object provides metadata for the collected data. A
PerfCounterInfo
object has a unique key, the counter ID. The actual performance data collected at runtime are identified by this counter ID. The following table lists the
PerfCounterInfo
properties.
Property
Description
groupInfo
Name of the resource group to which this counter belongs, such as disk, cpu, or memory.
key
Unique integer that identifies the counter. Also called the counter ID. The value is unique and it is not static—it might, for example, change between system reboots. The counter key on an ESXi system might not be the same as the counter key for the same counter on the vCenter Server system managing the ESXi system. However, the system maps the keys from ESXi to vCenter Server systems automatically.
level
Number from 1 to 4 that identifies the level at which data values for this counter are aggregated.
nameInfo
Descriptive name for the counter. The name component of a fully qualified counter name, for example
"granted"
is the
nameInfo
property for the
mem.granted.AVERAGE
counter.
rollupType
Indicates how multiple samples of a counter are transformed into a single statistical value. Examples of rollup types are average, summation, and minimum. No conversion of values occurs for counters that specify absolute values, such as the total number of seconds that the system has been running continuously since startup. The
PerfSummaryType
is an enumeration containing valid constants for this property.
statsType
Type of statistical data that the value represents over the course of the interval, such as an average, a rate, the minimum value, and so on. The
PerfStatsType
is an enumeration containing valid constants for this property.
unitInfo
Unit of measure, such as megahertz, kilobytes, kilobytes per second, and so on. The
ElementDescription
’s
key
property is populated using one of the constants available in the
PerformanceManagerUnit
enumeration.