On Wed, 29 Nov 2006 23:26:05 -0500 Ben Collins <[EMAIL PROTECTED]> wrote:
> This patch adds a config option to allow disabling hyper-threading by > default, and a kernel command line option to changes this default at > boot time. > > Signed-off-by: Ben Collins <[EMAIL PROTECTED]> The description is wrong - this does not disable hyperthreading it merely leaves one thread idle. I don't believe Intel have ever published a procedure for truely disabling HT, but if you idle a thread you may want to adjust the cache settings on a PIV (10.5.6 in the intel docs) and set it to shared mode. Need to play more with what the bios does I guess. So Ack but with the proviso it should say "Ignoring" or "Not using" not "Disabling", because it does not do the latter and there seem to be performance differences as a result Acked-by: Alan Cox <[EMAIL PROTECTED]> Alan - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
