Subject | Re: [firebird-support] Strange performance problems |
---|---|
Author | Tim Ledgerwood |
Post date | 2003-12-04T09:16:22Z |
At 11:01 AM 04/12/2003 +0200, you wrote:
The problem starts occurring after the DB reaches about 60 MB; although one
of the DBs we tested on yesterday (with good results) is 112 MB.
I am beginning to suspect more and more that it is physical memory issues,
rather than a DB issue. The problem is that I don't know enough about the
way IB/FB uses available memory in a windows environment ...
I think what is happening is that the OS runs out of physical RAM, and has
to start paging to disk, slowing everything down. Does this make sense?
As I said before, I am reluctant to simply throw more RAM at the problem,
without knowing what the problem is.
Regards
Tim
[Non-text portions of this message have been removed]
>Okay from the two process the fetching is fine, but the updating is slow asNo foreign keys at all. :-D The client app forces referential integrity.
>you have stated.
>What is the size of the database for these test scenario's. With a clean
>database is the speed acceptable ?
>
>How many foreign key's are on the table ?
>
>Thanks
The problem starts occurring after the DB reaches about 60 MB; although one
of the DBs we tested on yesterday (with good results) is 112 MB.
I am beginning to suspect more and more that it is physical memory issues,
rather than a DB issue. The problem is that I don't know enough about the
way IB/FB uses available memory in a windows environment ...
I think what is happening is that the OS runs out of physical RAM, and has
to start paging to disk, slowing everything down. Does this make sense?
As I said before, I am reluctant to simply throw more RAM at the problem,
without knowing what the problem is.
Regards
Tim
[Non-text portions of this message have been removed]