select
  INST_ID,                                 -- INST_ID NUMBER
  KSRPCCLIENT,                             -- CLIENT VARCHAR2(32)
  KSRPCREADS,                              -- READS# NUMBER
  KSRPCWRITES,                             -- WRITES# NUMBER
  KSRPCRKB,                                -- KBYTES_READ NUMBER
  KSRPCWKB,                                -- KBYTES_WRITTEN NUMBER
  KSRPCRLATENCY,                           -- READ_LATENCY NUMBER
  KSRPCWLATENCY                            -- WRITE_LATENCY NUMBER
from
  X$KSRPCIOS