Dear all,

I had got a error message in PMON_xxxx.trc file,
please see below,

Dump file /data4/db/log/pmon_24007.trc
Oracle7 Server Release - Production
With the distributed, replication, parallel query and Spatial Data options
PL/SQL Release - Production
ORACLE_HOME = /opt/oracle/app/oracle/product/7.3.4
System name: HP-UX
Node name: aih
Release: B.11.00
Version: U
Machine: 9000/800
Instance name: TRITON
Redo thread mounted by this instance: 1
Oracle process number: 2
Unix process pid: 24007, image: ora_pmon_TRITON

*** 2000.
*** SESSION ID:(1.1) 2000.
PMON unable to acquire latch bb505188 library cache
possible holder pid = 1683 ospid=23555
*** 2000.

why? and i found it after user complaint system slow down!!!
Those error will cause system slow down?