Messages in this thread | | | Date | Tue, 22 Jul 1997 22:41:16 -0600 (MDT) | From | Teunis Peters <> | Subject | Re: Kernel cpu selection + other platforms? |
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On 22 Jul 1997, david parsons wrote:
> In article <linux.kernel.33D3BDE2.404EB0D1@netzblick.com>, > Roland Steinbach <roland@netzblick.de> wrote: > >Mike Jagdis wrote: > > > >> Why? It is pretty easy to recognise all x86 varieties (other than the > >> early 486 clones) at run time and simply Do The Right Thing without > >> asking the user daft questions about whether they have microcode > >> bug #564 or working frozzle optimizations. > > > >_I_ don't want my settings be controlled by an OS, > > Whyever not? Resource management is, after all, why you've got an OS > in the first place.
CPU settings that drastically change how the OS acts don't count as resources....
Not unless the CPU can be readjusted without affecting running code. [as an example : try changing page-sizing on the fly... say to 8K pages from 4K pages....]
Ciao! - Teunis
SOME things should be compile-level. And a CPU that allows resizing of page-memory should have its own settings... And either fix it at boot (faster - more constants) or REALLY watch the memory-manager...
I don't know if any CPU actually DOES this (but 6x86 does something similar AFAIK)
oh, and before I forget - sometimes it's nice to tell if there's a CPU bug by disabling it's optimizations.... and you can't do that in an OS that automagically enables everything... (Hi Microsloth!)
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