Chuck Swiger wrote:

> While it is true that you can comment out all but i686 and get a
> working kernel, you will experience reduced performance.  There are a
> number of low-level assembly routines (cf sys/i386/i386/support.s such
> as i586_bcopy) that are conditionalized off of I586_CPU only, even
> though they provide an advantage on i686 platforms also.

Thank you very kindly for this info tidbit. In my ignorance I had
routinely built my kernels with only I686_CPU. Since the few boxen
I have are all downlevel every niche I can squeak out some performance
is sought after. Thanks indeed!


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