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1 | To set up SMP | ||
2 | |||
3 | Configure the kernel and answer Y to CONFIG_SMP. | ||
4 | |||
5 | If you are using LILO, it is handy to have both SMP and non-SMP | ||
6 | kernel images on hand. Edit /etc/lilo.conf to create an entry | ||
7 | for another kernel image called "linux-smp" or something. | ||
8 | |||
9 | The next time you compile the kernel, when running a SMP kernel, | ||
10 | edit linux/Makefile and change "MAKE=make" to "MAKE=make -jN" | ||
11 | (where N = number of CPU + 1, or if you have tons of memory/swap | ||
12 | you can just use "-j" without a number). Feel free to experiment | ||
13 | with this one. | ||
14 | |||
15 | Of course you should time how long each build takes :-) | ||
16 | Example: | ||
17 | make config | ||
18 | time -v sh -c 'make clean install modules modules_install' | ||
19 | |||
20 | If you are using some Compaq MP compliant machines you will need to set | ||
21 | the operating system in the BIOS settings to "Unixware" - don't ask me | ||
22 | why Compaqs don't work otherwise. | ||