[prev in list] [next in list] [prev in thread] [next in thread] 

List:       taroon-beta-list
Subject:    Re: Hugemem vs. Bigmem
From:       Ramki Balasubramanian <ramkib () synopsys ! com>
Date:       2003-08-27 15:53:48
Message-ID: 20030827155348.GA3491 () synopsys ! com
[Download RAW message or body]

Is there an option with PAE disabled?
If so, is it still possible to use upto 3.5GB+0.5GB user/kernel
split (Andrea Arcangeli's patch)?

thanks,
Ramki

On Tue, Aug 19, 2003 at 04:38:24PM -0400, Rik van Riel wrote:
> On Tue, 19 Aug 2003, Matt Pavlovich wrote:
> 
> > What is the difference b/w the hugemem and the bigmem kernels?
> 
> -bigmem in AS2.1 was PAE + highpte, suitable for use up to 16GB RAM
> 
> In Taroon, we have:
> -smp with PAE + highpte, suitable for use up to 16GB RAM
> -hugemem with PAE + highpte + 4/4 split, for use up to 64GB RAM
> 
> The reason for changing the name from -bigmem to -hugemem is that
> people were expecting 2.1 -bigmem and Taroon -bigmem to be the same
> kernel and were surprised and disappointed to see that the 4G/4G
> memory split has a speed penalty.
> 
> The name change was done to make sure the apples and the pears
> have a different name, so people won't compare apples and pears.
> 
> -- 
> "Debugging is twice as hard as writing the code in the first place.
> Therefore, if you write the code as cleverly as possible, you are,
> by definition, not smart enough to debug it." - Brian W. Kernighan
> 
> 
> --
> Taroon-beta-list mailing list
> Taroon-beta-list@redhat.com
> http://www.redhat.com/mailman/listinfo/taroon-beta-list

-- 
Ramki (ramkib@synopsys.com, 650-584-1467) 
-----------------------------------------------------------
Three virtues of programming: laziness,  impatience, hubris
Three virtues of community  : diligence, patience, humility
                              -- Larry Wall, Author of perl



[prev in list] [next in list] [prev in thread] [next in thread]