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- Newsgroups: comp.sys.next.software
- Path: sparky!uunet!stanford.edu!leland.Stanford.EDU!marcu
- From: marcu@leland.Stanford.EDU (Marc Albert Ullman)
- Subject: Re: SCSI drivers
- Message-ID: <1992Aug18.180311.25480@leland.Stanford.EDU>
- Sender: news@leland.Stanford.EDU (Mr News)
- Organization: DSG, Stanford University, CA 94305, USA
- References: <1992Aug18.072833.15164@leland.Stanford.EDU> <1992Aug18.173248.21572@leland.Stanford.EDU>
- Date: Tue, 18 Aug 92 18:03:11 GMT
- Lines: 26
-
- In article <1992Aug18.173248.21572@leland.Stanford.EDU> m@crito.stanford.edu (M Carling) writes:
- >You compare real-world tests with the drive manufacturers' claims
- >seemingly in an attempt to show that NeXT's SCSI driver is inferior to
- >that of other vendors. Please, if you want to make such a claim, test
- >NeXT's SCSI performance against someone else's SCSI performance, not
- >against claimed theoretical performance.
-
- I would not exactly call "disk / read" a "real-world" test. How much more
- ideal can you get? Also, I'm not claiming that other *UNIX* SCSI driver's
- are necessarily good--simply that NeXT's could stand some improvement.
-
- >This is correct. NeXT currently supports neither sychronous SCSI nor
- >tagged command queueing. I unsuccessfully lobbied to have them included in
- >3.0.
-
- That makes two of us.
-
- > Before NeXT will support these SCSI features, they will put every
- >type of hard drive that they ever shipped through qualification testing to
- >make sure that implementing them won't "break" anyone's system. I am
- >confident, however, that NeXT will eventually support these features.
-
- I woould have preferred to see them put it in but be disabled by default
- so that adventuresome users could have enabled it at their own risk.
-
- --Marc
-