Oracle Database Discussions

Hi

Does cache buffer chain latch and buffer busy wait event are related to one any another.


Latch definition from google says : Latches are simple, low-level serialization mechanisms to protect shared data structures in the system global area (SGA).

what does it mean my protect. Does this mean protects from aging as per LRU algorithm and getting removed from SGA
or
protect from other processes ,say from example from simultaneously DML operations.
or
both

Does buffer busy wait event occurs , because of the cache buffer chain latch ?

Thanks
Naveen.