Greg, I used to get about 80% when zipping SMF data, haven't done that for a while and never considered the CPU cost as I had to get the data under 2Gb. The reasons are now obsolete. The zip engine I used on MVS was ISPZIP from ASE. I may still have the performance numbers somewhere.
Cheers, Paul Gillis >Subject: Compression figures, anyone? > >Hi. > >My semi-facetious remark about ZIP archives got me wondering >about what sort of compression ratios users of compressed >extended-format data sets are getting. > >Zipping text can get 75% to 90% compression (ie. reducing the >data to 25% to 10% of its size). How's that compare? > >Of course, no matter what the size reduction is, I'd expect it >to use a lot less CPU time than a zipping app. > >So, anyone care to share? > >TIA, >Greg P. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
