Robin - What checksum are you using that is too CPU intensive?
Have you considered http://en.wikipedia.org/wiki/MurmurHash ? It is about 4 to 8 times as fast as most hash schemes because (1) it is of non-cryptographic quality and (2) it operates on entire words at once, rather than bytes. You can do an implementation that operates on z architecture doublewords, making it very fast indeed. Charles ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
