30 Dec
2024
30 Dec
'24
9:13 p.m.
Not dissimilar work at AT&T Research ~2000 - compressing fixed-length records, better
than gzip, +30% for similar compute time.
‘pzip’ - Adam Bushman & Glen Fowler
<https://web.archive.org/web/20041019142227/http://www.research.att.com/~gsf/pzip/pzip.html>
Later work by others, building on ‘pzip’ ,claims ‘100x’.
On 30 Dec 2024, at 00:44, Douglas McIlroy
<douglas.mcilroy(a)dartmouth.edu> wrote:
I can supply a copy if no one else has beaten me to it.
Ron Hardin subsequently pushed the limit even further. Unfortunately,
I do not have a record of that work.
Doug
On Sat, Dec 28, 2024 at 9:54 PM Royce Williams <royce(a)techsolvency.com> wrote:
>
> Someone I know is seeking the original version of an internal Bell Labs memo from
1974 titled "Webster's Second on the Head of a Pin" by Morris and Thompson.
The topic appears to be related to improving the speed of lookups or search. It's
cited in a few papers as "Unpublished Technical Memo, Bell Laboratories, Murray Hill,
NJ 1974." All I can find online is citations. Any leads appreciated!
>
> --
> Royce
Other links:
This repository included ksh-93 sources
Glen Fowlers’ downloads
<https://web.archive.org/web/20130514131958/http://www2.research.att.com/~gsf/download/>
Later AT&T Research page with Software downloads
<https://web.archive.org/web/20090626002505/http://public.research.att.com/index.cfm?portal=19&h=55>
THE AT&T AST OPENSOURCE SOFTWARE COLLECTION
2000
<https://www.usenix.org/legacy/publications/library/proceedings/usenix2000/freenix/full_papers/fowler/fowler.pdf>
Github Repo for AST - I couldn’t make these compile
<https://github.com/att/ast/tree/master>
KSH93
<https://github.com/ksh93>
--
Steve Jenkin, IT Systems and Design
0412 786 915 (+61 412 786 915)
PO Box 38, Kippax ACT 2615, AUSTRALIA
mailto:sjenkin@canb.auug.org.au http://members.tip.net.au/~sjenkin