Hello everyone!!! May be somebody can shed some light here... I'm building a server here with 4GB of RAM memory. The fact is, if I boot with mem=3072M everything goes as fast as it should but I'm not using 1GB of memory. If I don't put the mem option, Linux will see 4GB of memory available but it will be damn slow (really).
To make Linux recognize 4 gigs of memory I had to activate HIGHMEM=64GB, otherwise it only recognizes 3279MB (but it is fast). My processor is a Intel Core 2 Duo E6320 (1.86Ghz). The motherboard is Intel. I'm running Gentoo at 32bits mode and the kernel version is 2.6.20-gentoo-r8. Any lights would be very appreciated. Best regards, Daniel Colchete
