Subject | Re: Fill ratio when doing a restore |
---|---|
Author | Christian Kaufmann |
Post date | 2006-10-04T08:58:41Z |
Dear Ann,
to be honest. I don't really understand your explanation in all details.
So this is 12 bytes. With your explanation, a fill ratio of 59% is
fine in this case.
But because this table will grow in the future and existing records
will change very rarely, my question remains, if I should restore with
-use_all_space.
Because I will have a lot of select requests, that will use this table
and for my understanding the more records I have on one page, the less
pages have to be loaded from the harddisk when doing the select.
What can be a problem when I restore with -use_all_space and then add
some data later to this database?
cu Christian
to be honest. I don't really understand your explanation in all details.
> So, if your records compress to less than 9 bytes, you'll haveThe data fields of my record are two smallint and two integer fields.
> more than 50% reserved space.
So this is 12 bytes. With your explanation, a fill ratio of 59% is
fine in this case.
But because this table will grow in the future and existing records
will change very rarely, my question remains, if I should restore with
-use_all_space.
Because I will have a lot of select requests, that will use this table
and for my understanding the more records I have on one page, the less
pages have to be loaded from the harddisk when doing the select.
What can be a problem when I restore with -use_all_space and then add
some data later to this database?
cu Christian