Statistics on the default pager.

typedef struct _pager_info_ps {
  UMA_UINT32     PAGE_IN_REQUESTS;   /*  Number of page-in requests. */
  UMA_UINT32     PAGE_OUT_REQUESTS;  /*  Number of page-out requests. */
  UMA_UINT32     STATE;              /*  State of the paging space. */
  UMA_UINT32     TOTAL_PAGES;
  UMA_UINT32     FREE_PAGE;
  UMA_UINT32     HIGH_WATER_MARK;    /*  High water mark for the paging space. */
  UMA_UINT32     LOW_WATER_MARK;     /*  Low water mark for the paging space. */
} pager_info_ps;

typedef   pager _ info _ ps   * pager _ info _ ps ;