Question regarding v$latch

From: Oak, Sameer <soak_at_ziptone.com>
Date: Fri, 19 Jan 2001 13:53:52 -0500
Message-Id: <10746.127180@fatcity.com>

When I run query on v$latch I get following result. The performance of database is degraded over time. Any help appreciated.
Also The buffer cache hit ratio is 97%

SUBSTR(NAME,1,25) GETS MISSES IMMEDIATE_GETS IMMEDIATE_MISSES
------------------------- --------- --------- --------------

---

session allocation 953497 1 0 0

messages                    		1655325        1              0
0
cache buffers chains       	37394699      5        	1059790            0
Checkpoint queue latch       	510630         4              	0
0
library cache               		9517828        67           	1956

Received on Fri Jan 19 2001 - 12:53:52 CST