<div class="content"><p>The _PERF_COUNTER_DATA structure is used in the counter
header block.</p><dl>
<dd>
<div><pre> typedef struct _PERF_COUNTER_DATA {
   unsigned long dwDataSize;
   unsigned long dwSize;
 } PERF_COUNTER_DATA,
  *PPERF_COUNTER_DATA;
</pre></div>
</dd></dl><p><b>dwDataSize:</b>  The size, in bytes, of the <a href="da82a046-4e10-46ab-8da9-3d24bb48a2b2#gt_35645a67-9e0b-4c05-b2d9-3b2b25f2beac" data-linktype="relative-path">performance counter</a> data.</p><p><b>dwSize:</b>  The size, in bytes, of the
structure and performance counter data.</p></div>