[nylug-talk] LOWMEM vs. HIGHMEM performance advantage?

[jh]

Peter C. Norton wrote:
> On Thu, Apr 17, 2008 at 09:02:36PM -0400, Ruben Safir wrote:
>> Why do we still have this ancient DOS ritual?
>>
>> Ruben
> 
> 1) Because the kernel reserved too much address space back when 32mb
>    was big.
> 
> 2) Because PCI is 32-bits, x86 from pentium2 on has bank-switching
>    capabilities to make it sort-of 36-bits.
> 
> -Peter
> 

Arg. 896 megabytes is enough for anyone :)

Anyone have a link that actually examines/documents the performance hit 
of using HIMEM? Or even something anecdotal - there seems to be very 
little on the subject on Googlenet, except for "it is slower".

jh