Le 12/03/2018 à 12:31, Neo a écrit :
No PAE. For 2GB of RAM it makes no sense.
Indeed.
You just need this on 32bit machines with more than 4GB of RAM.
No, you also need it on machines with 4 GiB of RAM and remapping capability, in order to use the part of the RAM which is remapped beyond the 4-GiB boundary due to the "PCI hole". Usually the remapped memory amount is about 500 MB, but I have seen machines remapping 1 GiB or even 2 GiB, leaving only 2 or 3 GiB of usable RAM with a non PAE kernel.
Note that the non PAE kernel in older Debian versions up to Jessie lacked multi-processor (including multi-core and hyper-threading) support.