[comp.lang.objective-c] Objective-C Filer troubles

cassel@cygnus.sce.carleton.ca (Ron Casselman) (12/01/90)

We have a fairly large interactive Objective C program that generates
large save files using the Objective C Ascii Filer. The Ascii filer
converts a graph of objects in dynamic memory to a representation stored
in a file and allows for such files to read.

The problems occur when the Ascii filer save files become larger than
1.5 Mbs. A file of this size takes about 30 minutes on a Sun 3/60 to
save. On reading files of this size, the Ascii filer appears to chewup
virtual memory until everything halts (we have 50 Mb of swap on our
machines).

Has anyone else experienced these problems? If so do you have any
solutions?

We are seriously considering adding a backend database in place of the
Ascii Filer. Are there any databases tailored to Objective-C. We would
like a persistent object store that is as transparent to use as
possible.

-- 
Ron Casselman (613) 788-5726     Systems and Computer Engineering,
uunet!mitel!sce!cassel (uucp)  	 Carleton University,
cassel@sce.carleton.ca (bitnet)	 Ottawa, Ontario, Canada  K1S 5B6.