From owner-freebsd-hackers  Fri Feb 22 15: 8: 1 2002
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Date: Fri, 22 Feb 2002 15:07:55 -0800 (PST)
From: Matthew Dillon <dillon@apollo.backplane.com>
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To: Terry Lambert <tlambert2@mindspring.com>
Cc: Andrew Mobbs <andrewm@chiark.greenend.org.uk>,
	hackers@FreeBSD.ORG
Subject: Re: Re2: msync performance
References: <15478.31998.459219.178549@chiark.greenend.org.uk> <200202222042.g1MKg4u22700@apollo.backplane.com> <3C76C1C7.248128A4@mindspring.com> <200202222240.g1MMeQP31567@apollo.backplane.com> <3C76CB33.988E246F@mindspring.com>
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:I mean does msync() preterb the LRU order, by counting as
:a recent use?  It's probably wrong to preterb the order,
:since what you are doing is forcing pages *out*.  If you
:want them *out*, then they probably have lower locality
:than the pages you decided not to force out.
:
:In other words, msync() should probably not change the
:LRU order.
:
:-- Terry

    No, it has no effect on the vm_page's act_count.

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>

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