Redo Copy Latch

From: Sood, Kamal <Kamal.Sood_at_gbr.xerox.com>
Date: Tue, 5 Dec 2000 10:08:28 -0000
Message-Id: <10701.123630@fatcity.com>

Hi Gurus

As per my understanding, when Oracle needs to copy the changes to the redo log buffer it needs to acquire the latch and there are two types of latches
'redo allocation' and 'redo copy'. And which type of latch need to be
acquired is based on the size of change and the parameter
'log_small_entry_max_size' (in multiple CPU only). If the change is bigger
than log_small_entry_max_size then the oracle will acquire 'redo allocation' latch else 'redo copy'. If I am missing something then please correct me.

We are having 28 CPUs and set the log_small_entry_max_size to 0. So I should not see anything in the redo copy latch gets but I am getting the figures in redo copy latch as well. Can anyone explain me the reason why, please ?

Thanks & regards, Received on Tue Dec 05 2000 - 04:08:28 CST