swatt@ittvax.UUCP (06/14/83)
As people may know, the standard malloc(3) function which comes with
V7, 4.1bsd (and I assume USG) is unsuitable for large virtual address
spaces. It's performance within a 16-bit address space can be pretty
bad as well under some conditions.
I'm looking for better allocate/free routines. I have already:
1) standard v7/4.1bsd malloc (in libc.a)
2) alternate malloc.c in /usr/src/new/malloc.c on 4.1.
3) vax-specific malloc.c posted to net.sources by utah-cs!thomas,
December 16, 1982 (utah-cs.1235)
If you have an alternate strategy and can send the source to me, I will
compare all the ones I get and publish the results. I am only
interested in functions:
malloc(nbytes), free(ptr), and realloc(ptr, nbytes)
which must be functionally compatible with the standard versions. They
must provide a general-purpose allocator; i.e. not one that assumes any
special knowledge about patterns of use.
The source must be commented sufficiently to allow me to put in probes
to measure performance and fragmentation.
- Alan S. Watt
{decvax, duke, purdue, lbl-csam, research, allegra}!ittvax!swatt
decvax!ittvax!swatt@Berkeley (Arpanet)