Date: Thu, 23 Jan 2003 11:33:16 -0800 (PST) From: Nate Lawson <nate@root.org> To: cvs-all@FreeBSD.org Cc: cvs-committers@FreeBSD.org Subject: Re: cvs commit: src/sys/i386/i386 identcpu.c initcpu.c locore.s Message-ID: <Pine.BSF.4.21.0301231129060.72179-100000@root.org> In-Reply-To: <XFMail.20030123103957.jhb@FreeBSD.org>
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On Thu, 23 Jan 2003, John Baldwin wrote: > On 23-Jan-2003 Paul Richards wrote: > > On Wed, Jan 22, 2003 at 12:14:53PM -0800, John Baldwin wrote: > >> MFC: Precursors to simple hyperthreading support and sync with current: > > > > Is it a good idea to do this in 4? > > The simple HT support is a very small patch (see > http://www.FreeBSD.org/~jhb/patches/htt.patch) and is something that several > people/companies that use 4.x need. The patch merely enables an Auxiliary Processor on equipment that supports HTT. Thus, 4.x still has all its original SMP weaknesses that will lead people (eventually) to 5.x including the fact that only one process can be active in the kernel at a time. This change is similar to adding a new PCI id to a driver -- it enables use of new hardware but does not introduce any real, new functionality. -Nate To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe cvs-all" in the body of the message
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