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Provides information about the PERF_MULTI_COUNTERS block that contains the structure. A PERF_MULTI_COUNTERS block indicates the performance counters for which results are provided as part of the PERF_COUNTER_HEADER block in multiple-counter query. The PERF_MULTI_COUNTERS block consists of a PERF_MULTI_COUNTERS structure followed by a sequence of DWORD values that specify performance counter identifiers.
Syntax
typedef struct _PERF_MULTI_COUNTERS {
ULONG dwSize;
ULONG dwCounters;
} PERF_MULTI_COUNTERS, *PPERF_MULTI_COUNTERS;
Members
dwSize
The total size of the PERF_MULTI_COUNTERS block, in bytes. This total size is the sum of the sizes of the PERF_MULTI_COUNTERS structure and all of the performance counter identifiers.
dwCounters
The number of performance counter identifiers that the PERF_MULTI_COUNTERS block contains.
Remarks
The PerfQueryCounterData function gets a PERF_DATA_HEADER block that may contain a PERF_MULTI_COUNTERS block within the PERF_COUNTER_HEADER block.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 10, version 1607 [desktop apps only] |
| Minimum supported server | Windows Server 2016 [desktop apps only] |
| Header | perflib.h |