Re: DWBR and dirty buffers

Jonathan Lewis apparently said,on my timestamp of 25/02/2005 6:03 PM:

>
> Blocks are not really 'flushed' by a checkpoint, only
> cleaned. So, in theory, you should see all the XCUR
> stay in memory and turn to CR

Nope, not much happening with those here.

> You may find that a few blocks seem to stay as
> xcur - check the objd (data object id) for these,
> it will probably be about 4 billion - meaning it's
> from a rollback segment. There's always a little
> background activity going on which means that
> a few more blocks will be dirtied even as the
> checkpoint is running.

Ah yes, this could well explain it. I'll monitor for this and see if it is consistent.

-- 
Cheers
Nuno Souto
in sunny Sydney, Australia
wizofoz2k_at_yahoo.com.au.nospam