Subject | Re: [ib-support] Page buffers are zero? |
---|---|
Author | Brett Bandy |
Post date | 2001-04-16T17:22:37Z |
I would suggest that you use gfix to set the cache buffers for the database
instead of relying on the server's default value.
gfix -buffers xxx db.gdb
Setting the cache buffers at the db level has two main advantages:
1) cache buffers will remain with database even if db is moved to different
server.
2) individual settings for each db allows for more optimal solution. If
you have a main database, say 200mb, and a smaller db, say 2mb, what do you
set the server cache setting to? No server setting will be optimal for both
of these databases.
Brett
instead of relying on the server's default value.
gfix -buffers xxx db.gdb
Setting the cache buffers at the db level has two main advantages:
1) cache buffers will remain with database even if db is moved to different
server.
2) individual settings for each db allows for more optimal solution. If
you have a main database, say 200mb, and a smaller db, say 2mb, what do you
set the server cache setting to? No server setting will be optimal for both
of these databases.
Brett
----- Original Message -----
From: "Claudio Valderrama C." <cvalde@...>
To: <ib-support@yahoogroups.com>
Sent: Saturday, April 14, 2001 12:47 AM
Subject: Re: [ib-support] Page buffers are zero?
> Page buffers=0 in the db (as reported by gstat, for example) means the
> server's default is in place. If you want to change the server default in
> the configuration file, you must also remove the # in front of the line,
it
> means a comment!
> Take a look at
> http://www.cvalde.com/document/cache_settings_priority.htm
> It explains the priority of settings, because they aren't obvious.
>
> C.
>
> <deavewhite@...> wrote in message news:<9b7j2h+qk18@...>...
> > We've been seeing progressively longer connection times (currently
> > about 10 seconds to connect to the remote database over a 100MB/s
> > TCP/IP connection) and think it may be a cacheing problem as the
> > database gets larger.
> >
> > When I check the statistics for our database, the "Page buffers" are
> > reported as zero. It's actally a very small database at present -
> > only about 2MB. I set the #DATABASE_CACHE_PAGES parameter to 5000 in
> > the ibconfig file (Windows NT with 256MB RAM) but can't seem to get a
> > reading for Page buffers. Am I missing something?
> >
> > TIA
> >
> > Dave White
> >
> >
> >
> > Database "d:\autopro\lims\autopro.gdb"
> >
> > Database header page information:
> > Flags 0
> > Checksum 12345
> > Generation 57698
> > Page size 4096
> > ODS version 10.0
> > Oldest transaction 56337
> > Oldest active 56338
> > Oldest snapshot 56338
> > Next transaction 56363
> > Bumped transaction 1
> > Sequence number 0
> > Next attachment ID 3
> > Implementation ID 16
> > Shadow count 0
> > Page buffers 0
> > Next header page 0
> > Database dialect 1
> > Creation date Jan 22, 2001 15:44:02
> > Attributes force write
> >
> > Variable header data:
> > *END*
> >
> >
> >
> >
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