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- Path: sparky!uunet!ukma!gatech!rpi!crdgw1!rdsunx.crd.ge.com!ariel!davidsen
- From: davidsen@ariel.crd.GE.COM (william E Davidsen)
- Newsgroups: comp.arch
- Subject: Re: HOw many PC's make an Amdahl mainframe
- Message-ID: <1993Jan28.182841.9156@crd.ge.com>
- Date: 28 Jan 93 18:28:41 GMT
- References: <1k46ioINNijv@fido.asd.sgi.com> <1993Jan26.225943.21955@enterprise.rdd.lmsc.lockheed.com> <1993@niktow.canisius.edu>
- Sender: usenet@crd.ge.com (Required for NNTP)
- Reply-To: davidsen@crd.ge.com (bill davidsen)
- Organization: GE Corporate R&D Center, Schenectady NY
- Lines: 17
- Nntp-Posting-Host: ariel.crd.ge.com
-
- To answer the question someone asked, a large database is one with more
- than 2^32 bytes. Addressing becomes a major ugly mess at that point.
- For the end user, perhaps actually at 2^31 if you C, since the offset
- is signed.
-
- I doubt that faking offsets in BCD, or as extents, or whatever is
- consistent with high performance and bug-free code.
-
- Our RAM and disk have outgrown the word size in a decade. The original
- XT had 10MB, today servers with multiple 2.3G drives, or even RAIDs of
- 1.3 or 2.3G units are not unheard of.
-
- --
- bill davidsen, GE Corp. R&D Center; Box 8; Schenectady NY 12345
- A terible poker player can have a great hand,
- A obnoxious fool can have a good idea.
- Both are winners, regardless of who has them.
-