On Thu, 2007-03-22 at 11:11 +0000, David Given wrote:
> I have a machine with 48MB of RAM that I want to use as a server.
> 
> The OpenBSD kernel is a bit over 5MB. I assume that gets loaded into memory
> and is not swappable, giving me 43MB left, which isn't a lot.
> 
> Is it worth recompiling the kernel to remove support for features I'm not
> using --- IPv6, say, or the Microchannel bus --- on the principle that
> reducing the size of the kernel will give more memory for doing other things,
> and therefore generally speed the system up? Or will not using GENERIC cause
> more problems than it's worth?
> 
> And if it is worth recompiling the kernel, can anyone recommend any
> particularly big features it would be worth taking out?

well, you could always compile with the small kernel option (forget the
actual #define that needs to be made, but grep is god's gift to
everybody).

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