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Date:      Sun, 29 Apr 2001 03:17:21 -0700
From:      Alfred Perlstein <bright@wintelcom.net>
To:        Jake Burkholder <jburkholder0829@home.com>
Cc:        smp@FreeBSD.ORG
Subject:   Re: that vm diff now makes it into single user mode.
Message-ID:  <20010429031720.G18676@fw.wintelcom.net>
In-Reply-To: <20010429013533.D18676@fw.wintelcom.net>; from bright@wintelcom.net on Sun, Apr 29, 2001 at 01:35:33AM -0700
References:  <bright@wintelcom.net> <20010429061303.6B821223A@k7.rchrd1.on.wave.home.com> <20010429013533.D18676@fw.wintelcom.net>

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* Alfred Perlstein <bright@wintelcom.net> [010429 01:35] wrote:
> * Jake Burkholder <jburkholder0829@home.com> [010428 23:10] wrote:
> 
> > About page faults not needing Giant, have you tried not acquiring
> > Giant in trap where the page faults come in?  I've pushed Giant down
> > far enough in trap() for this to happe for i386 at least, I think Doug's
> > done the same for alpha.
> 
> foo, i didn't see the Giant wrapper around trap_pfault, I thought
> I was already doing that.

ok, with the latest version:

vm.vm_faults_no_vm_mtx: 118257  # in vm_fault without vm_mtx
vm.vm_faults_no_giant: 109304   # in vm_fault without Giant
vm.stats.vm.v_vm_faults: 133424 # in vm_fault total

not bad. :)

-- 
-Alfred Perlstein - [alfred@freebsd.org]
Instead of asking why a piece of software is using "1970s technology,"
start asking why software is ignoring 30 years of accumulated wisdom.

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