lkml.org 
[lkml]   [2001]   [Dec]   [7]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: highmem question
Date
>
> > I heard that himem slows down systems.
>
> It does, because it's a hack to extend 32-bit machines beyond their
> architectural lifetime.
>

While it certainly makes sense to expect a performance hit for mem above 4GB
on 32 bit systems I don't see why there should be any a priori reason to
either move to 64 bit or take a performance hit for if you need, say, 2GB of
RAM. The problem is that 2.4 Linux considers HIGHMEM to be anything above
896MB.

>From what I've read it looks like there will be changes in 2.5 to fix all
this.

Marvin Justice
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:18    [W:0.268 / U:0.056 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site