Commit | Line | Data |
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1da177e4 LT |
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. |