800万记录表建立索引效率问题在线等

create index B_M_PC_CUI_CUST01 on B_M_PC_CUI_CUST_NEW (GENB_CUST_CLASS) parallel(degree 8) nologging
  tablespace INDEXTBS02
  pctfree 10
  initrans 2
  maxtrans 255
  storage
  (
    initial 1M
    next 1M
    minextents 1
    maxextents unlimited
    pctincrease 0
  )
  LOCAL
(
     Partition p1,
     Partition p2,
     Partition p3
)
现在这个108秒，还能再快点吗，请各位大侠帮忙