more RAM + faster disk -> slower box?!

Mark Blackman mark at blackmans.org
Thu Nov 29 14:19:57 GMT 2001


http://www.pcguide.com/ref/mbsys/cache/charCacheability-c.html

Seems to be connected with the Intel 430HX chipset.
This seems far more likely.

> I know that some older motherboards never cached more than the first
> 512MB of memory.  This was a particular problem with Windows, because it
> was loaded in to the top of memory.  If you had more than 512MB of RAM
> you suddenly discovered that your OS was running in non-cached memory,
> and everything got slower.
> 
> FreeBSD is probably susceptible to the same problems (not sure where the
> OS loads, but given FreeBSD's aggressive use of memory you're going to
> be hitting that top 256MB very soon after boot).
> 
> I don't know whoch motherboards had this problem, but Google can
> probably tell you.  It might be worth ripping out 256MB and trying the
> test again.
> 
> N
> --=20
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