Yiping Chen <YipingChen@via.com.tw> writes:
>
> So, I have two question now,
> 1. how to determine whether your kernel support SMP?
Type "uname -a", as you did before:
> Linux lab5-1 2.4.2-2 #1 SMP Wed Apr 25 18:56:05 CST 2001 i686 unknown
^^^
SMP appears here if and only if your kernel was compiled as an SMP
kernel (i.e., with CONFIG_SMP set). Programmatically, you can get
this same information from the "uname" system call. The "version"
member for the "utsname" structure will be the complete string:
#1 SMP Wed Apr 25 18:56:05 CST 2001
That is, you should be able to reliably determine whether or not the
kernel is SMP by simply "strstr"ing for " SMP " in the version string.
> 2. I remember in 2.2.x, when I rebuild the kernel which support SMP, the
> compile
> argument will include -D__SMP__ , but this time, when I rebuild kernel
> 2.4.2-2 , it didn't appear.
> Why?
The "__SMP__" preprocessor define has been replaced by the
"CONFIG_SMP" configuration file variable.
Kevin <buhr@stat.wisc.edu>
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This archive was generated by hypermail 2b29 : Mon Apr 30 2001 - 21:00:16 EST