On Thursday 26 April 2007 12:54:22 Jerry Feldman wrote: > On Wed, 25 Apr 2007 17:35:39 -0400 > > Jarod Wilson <[EMAIL PROTECTED]> wrote: > > I don't know the specifics, but its definitely possible to disabled HT, > > as well as a core or cores of a cpu or cpus at the bios level. The bios > > in my Dell Precision 490 workstation has options for both. > > > > I know in some cases, the linux kernel will spit an error that says "we > > think you have this support, but its disabled in the bios". (The specific > > case that comes to mind is hardware virtualization support, for which my > > bios also has a toggle). > > We have an Itanium dual-core system in Toronto by disabling HT we > significantly improved performance (RHEL 4).
Yup, particularly in the high-performance computing arena, its generally recommended to run without HT, since its almost always a performance hit there. -- Jarod Wilson [EMAIL PROTECTED] _______________________________________________ gnhlug-discuss mailing list gnhlug-discuss@mail.gnhlug.org http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/
