| Platform SDK: Performance Monitoring |
The data is the start time of the item being measured. For display, subtract the start time from the snapshot time to yield the elapsed time. The PerfTime member of the PERF_OBJECT_TYPE structure contains the sample time. Use the PerfFreq member of the PERF_OBJECT_TYPE structure to convert the time into seconds.
| Element | Value |
|---|---|
| X | CounterData |
| Y | PerfTime |
| Time base | PerfFreq |
| Data Size | 8 Bytes |
| Display Suffix | Sec |
| Calculation | (Y-X)/TB |