+ Performance library instance mainly used by DxeCore.\r
+\r
+ This library provides the performance measurement interfaces and initializes performance\r
+ logging for DXE phase. It first initializes its private global data structure for\r
+ performance logging and saves the performance GUIDed HOB passed from PEI phase. \r
+ It initializes DXE phase performance logging by publishing the Performance Protocol,\r
+ which is consumed by DxePerformanceLib to logging performance data in DXE phase.\r
+\r
+ This library is mainly used by DxeCore to start performance logging to ensure that\r
+ Performance Protocol is installed at the very beginning of DXE phase.\r