From: Benjamin LaHaise <bcrl@redhat.com>
To: Mark_H_Johnson@Raytheon.com
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
"Amit S. Jain" <amitjain@tifr.res.in>,
linux-mm@kvack.org, owner-linux-mm@kvack.org
Subject: Re: Allocation of kernel memory >128K
Date: Tue, 11 Dec 2001 13:13:42 -0500 [thread overview]
Message-ID: <20011211131342.D6400@redhat.com> (raw)
In-Reply-To: <OF1B7C1C46.B55EBB52-ON86256B1F.00536DEC@hou.us.ray.com>; from Mark_H_Johnson@Raytheon.com on Tue, Dec 11, 2001 at 09:27:36AM -0600
On Tue, Dec 11, 2001 at 09:27:36AM -0600, Mark_H_Johnson@Raytheon.com wrote:
> I would not necessarily say that "large amounts of continuous memory is a
> bad thing" - rather that it is hard to get, and a costly operation (in
> time). For example - a number of existing pages must be moved (or swapped)
> to get the area you are requesting. Since this is a big performance hit,
> you better have a really good reason for doing so.
Don't even bother thinking about performance: it is unreliable.
-ben
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next prev parent reply other threads:[~2001-12-11 18:13 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-11 15:27 Mark_H_Johnson
2001-12-11 18:13 ` Benjamin LaHaise [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-12-11 10:06 Amit S. Jain
2001-12-11 10:41 ` Eric W. Biederman
2001-12-12 7:40 ` Amit S. Jain
2001-12-20 3:56 ` Vladimir Dergachev
2001-12-27 11:08 ` Amit S. Jain
2002-01-03 22:59 ` Ravi K
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