On Tue, Jun 08, 2004 at 03:36:28PM -0400, Dwayne MacKinnon wrote: : : I'm upgrading some machines from 4.8-RELEASE to 4.10-RELEASE. The : machines in question are dual-processor xeon boxes. Now, my boss is : adamant in that he doesn't want hyperthreading enabled on the machines. : : In 4.8-RELEASE things were simple... I just didn't add the "options HTT" : line to my kernel config file. In 4.10-RELEASE though, HTT is enabled by : default. : : So, is there any way to shut off the hyperthreading? I've tried : disabling it in the BIOS, and had no luck whatsoever.
Hyperthreading is built into the kernel by default starting with FreeBSD-4.9. However, it is not enabled by default. To do so, do a "sysctl machdep.hlt_logical_cpus=0" _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
