Date: Thu, 04 Nov 2004 17:42:35 -0800 From: Julian Elischer <julian@elischer.org> To: John Baldwin <jhb@freebsd.org> Cc: Perforce Change Reviews <perforce@freebsd.org> Subject: Re: PERFORCE change 64282 for review Message-ID: <418ADA8B.6070809@elischer.org> In-Reply-To: <200411050043.iA50hKYW046464@repoman.freebsd.org> References: <200411050043.iA50hKYW046464@repoman.freebsd.org>
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John Baldwin wrote: >http://perforce.freebsd.org/chv.cgi?CH=64282 > >Change 64282 by jhb@jhb_slimer on 2004/11/05 00:42:44 > > Update. > >Affected files ... > >.. //depot/projects/smpng/sys/notes#23 edit > >Differences ... > >==== //depot/projects/smpng/sys/notes#23 (text+ko) ==== > >@@ -54,15 +54,11 @@ > - Optimize spin locks on UP such that they don't do atomic operations > Is this a "done" list or a "to do" list? Either way, I'm glad to see this because I've been pushing for it for a while.. also means '386' machines could be compiled as they wouldn't require all teh extra atomic stuff. > - Untested > - Unbenchmarked >-- Add support for disabling CPUs on x86 via APIC ID (hint.lapic.X.disabled) >- - need to separate mp_ncpus a bit, maybe mp_ncpus stays as count of >- present CPUs, but a separate mp_activecpus is count of CPUs actually in >- use. Hmm, CPUs really should just not show up when they are disabled >- maybe, but that means fudging with mp_ncpus. > - Fix boot_cpu_id to be a logical FreeBSD cpuid that is the BSP on all archs > - Maybe hardcode FreeBSD cpuid 0 as BSP instead > - Change alpha to use logical FreeBSD cpuid's rather than mapping 1:1 to > physical IDs >-- Revert bde's changes to the interrupt storm code. >+- Split critical sections from spinlocks some, create spinlock_enter/exit() >+ MD API to replace cpu_critical_*. > > Space reserved for child branches: > >
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