GV$SUBCACHE definition in Oracle Database 11.2
GV$SUBCACHE

select
  inst_id,                                 -- INST_ID NUMBER
  kglnaown,                                -- OWNER_NAME VARCHAR2(64)
  kglnaobj,                                -- NAME VARCHAR2(1000)
  kglobtyp,                                -- TYPE NUMBER
  kqlfshpn,                                -- HEAP_NUM NUMBER
  kqlfscid,                                -- CACHE_ID NUMBER
  kqlfsscc,                                -- CACHE_CNT NUMBER
  kqlfsesp,                                -- HEAP_SZ NUMBER
  kqlfsasp,                                -- HEAP_ALOC NUMBER
  kqlfsusp                                 -- HEAP_USED NUMBER
from
  x$kqlset

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