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Date:      Fri, 1 Nov 2002 19:04:46 -0500
From:      Andrew Gallatin <gallatin@cs.duke.edu>
To:        Jeff Roberson <jroberson@chesapeake.net>
Cc:        cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/alpha/alpha pmap.c src/sys/alpha/include vmparam.h
Message-ID:  <20021101190445.A27378@grasshopper.cs.duke.edu>
In-Reply-To: <20021031224241.C35554-100000@mail.chesapeake.net>; from jroberson@chesapeake.net on Thu, Oct 31, 2002 at 10:43:36PM -0500
References:  <200211010334.gA13YpRA051603@repoman.freebsd.org> <20021031224241.C35554-100000@mail.chesapeake.net>

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Jeff Roberson [jroberson@chesapeake.net] wrote:
> On Thu, 31 Oct 2002, Jeff Roberson wrote:
> 
> > jeff        2002/10/31 19:34:51 PST
> >
> >   Modified files:
> >     sys/alpha/alpha      pmap.c
> >     sys/alpha/include    vmparam.h
> >   Log:
> >    - Enable the use of UMA_MD_PAGE_ALLOC on alpha.
> >    - Define uma_small_alloc and uma_small_free using K0SEG for virtual
> >      addresses.
> >
> >   Approved by:    re
> >
> 
> This yields about a 3% decrease in kernel times for buildworld.

It's about 1% on my xp1000.    Are you testing on an SMP?  I can
see how this would really help for an SMP..  I'll bet this saves
a lot of IPIs.

Drew

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