🚀 go-pugleaf

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?

I didn't had any problems to increase the mach buffers. The correct syntax is
bsd- nbu=128 e.g.

The best is to reserve about 5 % of your memory for mach buffers. I have a  
Monochrome NeXTstation with 20 MB RAM. So I adjusted the buffers to 128 (8KB *  
128 = 1MB) and I've got a better performance.
When you set the buffers to values > 255 you will get problems.

To make these changes permanent set change the boot command in the NMI with the 
'p' command.

boot: sd	? sd- nbu=128

That will work.
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