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Date:      Thu, 16 Feb 2006 12:35:48 +0000
From:      Brian Candler <B.Candler@pobox.com>
To:        David Xu <davidxu@freebsd.org>
Cc:        Dmitry Pryanishnikov <dmitry@atlantis.dp.ua>, freebsd-current@freebsd.org
Subject:   Re: Virtual memory consumption (both user and kernel) in modern CURRENT
Message-ID:  <20060216123548.GA35910@uk.tiscali.com>
In-Reply-To: <43F29BF5.4060300@freebsd.org>
References:  <20060215024339.N22450@atlantis.atlantis.dp.ua> <43F29BF5.4060300@freebsd.org>

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On Wed, Feb 15, 2006 at 11:11:49AM +0800, David Xu wrote:
> >1) Is it normal that virtual memory size for almost every non-kernel 
> >process
> >   is close to 50Mb now:
> >
> >    ftp://external.atlantis.dp.ua/FreeBSD/CURRENT/top.txt
> >
> >   Is it miscalculation or real growth of virtual address space?
> >
> >
> I believe this is the new malloc code in libc, I am seeing this on my
> Athlon64 machine, now it likes swap memory, in the old days, it seldom
> touched it.

IIRR, the new malloc grabs 32MB immediately. However, I'd hope that doesn't
mean that 32MB of pages are actually touched, and then get swapped out to
disk. If it does, I'm staying on FreeBSD 6.0 :-)

Regards,

Brian.



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