| To set up SMP |
| |
| Configure the kernel and answer Y to CONFIG_SMP. |
| |
| If you are using LILO, it is handy to have both SMP and non-SMP |
| kernel images on hand. Edit /etc/lilo.conf to create an entry |
| for another kernel image called "linux-smp" or something. |
| |
| The next time you compile the kernel, when running a SMP kernel, |
| edit linux/Makefile and change "MAKE=make" to "MAKE=make -jN" |
| (where N = number of CPU + 1, or if you have tons of memory/swap |
| you can just use "-j" without a number). Feel free to experiment |
| with this one. |
| |
| Of course you should time how long each build takes :-) |
| Example: |
| make config |
| time -v sh -c 'make clean install modules modules_install' |
| |
| If you are using some Compaq MP compliant machines you will need to set |
| the operating system in the BIOS settings to "Unixware" - don't ask me |
| why Compaqs don't work otherwise. |