V$LATCH question

What is the differences between column MISSES and SLEEPS of V$LATCH. From the book:

SLEEPS - The number of times a process had to wait before obtaining a Willing-to-Wait latch

MISSES - The number of times a Willing-to-Wait latch was not acquired and a wait resulted

To tune the Willing-to-wait latch, which column should I use?

Thanks,
David Received on Fri Nov 30 2001 - 19:49:01 CST