[cgl_discussion] CONFIG_HYPERTHREADING ??

Randy.Dunlap rddunlap at osdl.org
Tue Oct 8 10:17:26 PDT 2002


On Tue, 8 Oct 2002, Patrick Mochel wrote:

| On Tue, 8 Oct 2002, John Grana wrote:
|
| > Is Hyperthreading something that only applies to x86 architecture?
| > If not, then having the ability to disable via BIOS is ok, but other
| > processor architectures such as Sparc (with OpenBoot), MIPS, PowerPC etc.
| > have different ideas of BIOS (like boot proms, monitors, etc.). So, the way
| > it was descibed below:
| >
| > "We did not make a statement specific to HOW to make this (or in general all
| > of the)requirement(s) actually configurable"
|
| It's specific to not only x86, but to Pentium 4 processors. That should
| also mean, though, that hyperthreading won't be enabled unless CONFIG_X86
| and CONFIG_PENTIUM4 are enabled.

I've heard some discussion of hyperthreading for PPC systems (and
not actually released yet).  The concept isn't specific to x86.

-- 
~Randy
  "In general, avoiding problems is better than solving them."
  -- from "#ifdef Considered Harmful", Spencer & Collyer, USENIX 1992.




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