-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The Monday 2008-06-30 at 09:31 +0200, Bernhard Walle wrote:
* Daniel Fuhrmann [2008-06-30 09:11]:
When Pae works almost on every "normal and newer" machine why pae isn't default and we distribute an nonpae kernel?
We can discuss days how we name kernels but wouldn't that give the user *any* benefit beside of making the update harder?
Many users are confused about this pae thing. They don't know what is it for, what benefits or disadvantages may it have, why they have to use a pae kernel if they only have 1 GiB, whether a 64 bit cpu uses it or not (being an intel only thing?), whether it is slower... this is oss, but clear, authoritative info is not so easy to find. There is no mention in the release notes about "pae". Some users are tempted to force a different kernel. Is there an easy to find link on pae on opensuse 11 and what is each kernel for, official info if possible, wiki if not? "Proof" of sloweness for pae kernels: *** http://wiki.novell.com/index.php/Memory_over_3GB_on_NetWare How PAE works (...) In fact, with PAE disabled, the processor uses so called paging tables to translate logical 32 bit addresses used by programs into 32 bit physical addresses used to access the memory. In PAE mode, the structure of these paging tables has been changed to map the 32 bit logical addresses to 36 bit physical addresses. These paging tables use bigger entries, and there is one more level of paging tables which causes a slight overhead (a few percent performance penalty) compared to the 32 bit tables for non PAE mode. *** - -- Cheers, Carlos E. R. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.4-svn0 (GNU/Linux) iD8DBQFIaM6JtTMYHG2NR9URAhqJAJ4nZ7n6B5x2ctJBx04IdEwH0C6jjgCeN7bZ B16ArfJhhNREzv91w0O+HA0= =3dSB -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-factory+help@opensuse.org