Article View: comp.sys.mac.databases
Article #90Re: 4D and the Disk Cache
From: ST25370
Date: Tue, 28 Jul 1992 13:34
Date: Tue, 28 Jul 1992 13:34
50 lines
2933 bytes
2933 bytes
> As I understand it, 4D gets no use out of the cache
> because it does its own caching and would benefit
> from the extra memory that the cache takes up.
Correct.
.
> ...I have 8M RAM in
> my 'puter. Is 4D really capable of using all that? Only, I imagine,
> if I have a db that's that size, which I won't. Why doesn't Acius
> give some more detail about that in their install info? Oh, well.
--
ACIUS does give more info about that in the 4D Customizer dox. 4D is
capable of using a very large partition of your RAM. It can use is for
..well... caching. 4D will cache data and code/layouts, which can be
very, very useful fer instance when you have a nice little 7 page layout,
and you're working from a structure file copy that's on a file server you
are connected to by LocalTalk. 4D, with enough RAM, will hold that layout
in memory until it's close, rather thatn having to load pages across the
network as you flip from one to the other. Given the small size of the
standard lowend mac monitor, I would expect something like this to be a
not-too-uncommon situation (multi-page layouts, that is). After 3 years
of both development and end-use of 4D databases, we have finally gotten
out asministration to agree that 4Mb is a minimum RAM configuration for any
new machine. We have not been able to get them to standardise on an
'030 machine, however, so we still are buying lowend machines for dbase
work, and have the small monitor/slow CPU problem. We are also encountering
great resistance to ethernet migration... They LIKE it slow and painful.
Acius's Customiser has been a big help, because we have been able to allow
4D to make the best use of what memory is available. 4D Customiser allows
us to configure each databases memory useage for any of several different
end-user possibilities (2/4/8 Mb RAM and various partitions thereof), so
we can help 4D best use waht cache it has, based on the dbase's needs.
.
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Path: arc1-ca.pugleaf.net!sparky!uunet!dtix!darwin.sura.net!newshost.latech.edu!VM.CC.LATECH.EDU!ST25370 From: ST25370@VM.CC.LATECH.EDU Newsgroups: comp.sys.mac.databases Subject: Re: 4D and the Disk Cache Message-ID: <168326AA6.ST25370@VM.CC.LATECH.EDU> Date: 28 Jul 92 13:34:58 GMT References: <1992Jul27.210040.14694@risky.ecs.umass.edu> Sender: usenet@engr.latech.edu Organization: LOUISIANA TECH UNIVERSITY Lines: 50 Nntp-Posting-Host: vm.cc.latech.edu