| 1 |
On Wed, 2005-08-31 at 20:32 +0200, Bastian Balthazar Bux wrote: |
| 2 |
> Ow Mun Heng wrote: |
| 3 |
> > [quote] |
| 4 |
> > Allocate 3rd-level pagetables from highmem (HIGHPTE) |
| 5 |
> > |
| 6 |
> > The VM uses one page table entry for each page of physical memory. |
| 7 |
> > For systems with a lot of RAM, this can be wasteful of precious |
| 8 |
> > low memory. Setting this option will put user-space page table |
| 9 |
> > entries in high memory. |
| 10 |
> > [/quote] |
| 11 |
> > |
| 12 |
> > I have 1.5Gb of RAM, will this be useful for me? |
| 13 |
> > |
| 14 |
> Not sure but: |
| 15 |
> 3rd-level pagetables are for systems with a *lot* of memory that don't |
| 16 |
> want to waste space in the lowest gig of mem (to keep addresses of high |
| 17 |
> mem.). |
| 18 |
> |
| 19 |
> So basically no advantage with 1.5 gig |
| 20 |
|
| 21 |
Ah.. I see. Thanks. |
| 22 |
|
| 23 |
(as it turns out, seems like my make oldconfig wasn't really using the |
| 24 |
old config. I had many iterations of my kernel being compiled with diff |
| 25 |
stuffs. Finally found that the 4GB option wasn't turned 'on') |
| 26 |
|
| 27 |
/me wonders when I will have >4GB of ram and load everything into RAM |
| 28 |
(and XFS filesystems). Can you say Super TUX? hehe.. |
| 29 |
|
| 30 |
-- |
| 31 |
Ow Mun Heng |
| 32 |
Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM |
| 33 |
98% Microsoft(tm) Free!! |
| 34 |
Neuromancer 09:53:42 up 11:52, 5 users, load average: 0.74, 1.25, 2.45 |
| 35 |
|
| 36 |
|
| 37 |
-- |
| 38 |
gentoo-user@g.o mailing list |
Archives