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- Newsgroups: comp.sys.next.software
- Path: sparky!uunet!math.fu-berlin.de!uniol!proximus!gemoe
- From: gemoe@proximus.north.de (Gerhard Moeller)
- Subject: Re: Speed of 3.0 relative to 2.X
- Message-ID: <1992Dec30.065107.15274@proximus.north.de>
- Sender: gemoe@proximus.north.de
- Organization: Gerhard Moeller, German NeXT User Group, Oldenburg.
- References: <1992Dec29.111444.17399@jyu.fi>
- Date: Wed, 30 Dec 1992 06:51:07 GMT
- Lines: 32
-
- In article <1992Dec29.111444.17399@jyu.fi> otto@jyu.fi (Otto J. Makela) writes:
- > Quite some time ago, jim@ljkiraly.lerc.nasa.gov (L J "Jim" Kiraly) wrote...
- > [re adding memory to get better speed]
- > >Didn't need to yet! I changed the boot procedure to use 32 instead of 16
- > >buffers and got a major speedup and overall improved performance. (e.g.
- > >"CMD~"; during reboot; and then "bsd sdmach -nbuf=32" ) This seems to
- > >remain set between restart/reboots although I haven't actually power cylced
- > >things yet.
- >
- > I just upgraded to NS3.0, and tried this to see if I could pep it up a bit...
- > I end up with "init exited" (as it did also with NS2.1), and it obviously
- > doesn't boot.
- >
- > Monochrome NeXTstation with 32Mbytes of memory. Ideas, anyone?
-
- 1.) Go in the ROM-Monitor (read the Admin-Ref for how to do that)
- 2.) Change the bootparameter ("p")
- sd- nbu=32 # or any other number, I use 96 (=0x60).
- (With 32MB, I'd use 128 buffers...)
- (This also works for numbers >99, nbuf=... does not.)
-
- It will speed the I/O up, BUT (!) remember that you risk more when your machine
- crashes!
-
- Have fun, Gerhard.
- --
- +---------------------------< principiis obsta! >---------------------------+
- N Gerhard Moeller, Teichstrasse 12, 2900 Oldenburg (FRG) [*: 02/21/1968] N
- e Private: gemoe@proximus.north.de Phone (voice): +49-441-75520 e
- X Uni: Gerhard.Moeller@arbi.Informatik.Uni-Oldenburg.DE NeXTmail X
- T Z-Net: Gerhard.Moeller@uniol.zer encouraged! T
- +-> NoGeNUG - Northern German NeXT User Group: NoGeNUG@proximus.north.DE <-+
-