From: Pratik Solanki <pratik.solanki.ml@gmail.com>
To: linux-newbie@vger.kernel.org
Subject: Re: VM Vs Swap space
Date: Thu, 7 Oct 2004 12:05:39 -0400 [thread overview]
Message-ID: <9cb08bfa0410070905188b0197@mail.gmail.com> (raw)
In-Reply-To: <20041007093740.79630.qmail@web52904.mail.yahoo.com>
On Thu, 7 Oct 2004 10:37:40 +0100 (BST), Ankit Jain
<ankitjain1580@yahoo.com> wrote:
> well if we dont have a swap area then shall i say my
> system dosent have virtual memory
No.
> is this correct? because i feel even if this swap area
> is not there then also virtual memory concept exists?
Virtual memory is the reason why applications can think they have 4GB
of memory while your physical machine might actually have only 32MB.
You don't need to have swap in order to have virtual memory, although
its very advantageous to have swap with VM.
Virtual memory maps the viurtual pages (from 0 to 4GB) to actually
physical memory pages (from 0 to however much RAM you have). Swapping
is the process of using the disk to store physical memory pages when
they are not in use, and then restoring them when an application
accesses them.
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next prev parent reply other threads:[~2004-10-07 16:05 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-06 8:52 VM Vs Swap space Ankit Jain
2004-10-07 1:57 ` chuck gelm
2004-10-07 6:01 ` kernel kernel
2004-10-07 9:15 ` Ankit Jain
2004-10-07 9:25 ` kernel kernel
2004-10-07 9:37 ` Ankit Jain
2004-10-07 10:31 ` chuck gelm
2004-10-07 16:05 ` Pratik Solanki [this message]
2004-10-07 16:07 ` Pratik Solanki
2004-10-08 3:29 ` kernel kernel
2004-10-07 10:41 ` chuck gelm
2004-10-07 16:09 ` Pratik Solanki
[not found] ` <20041007172157.63553.qmail@web52908.mail.yahoo.com>
2004-10-07 18:49 ` Pratik Solanki
2004-10-07 22:13 ` chuck gelm
2004-10-08 2:49 ` Jim Nelson
2004-10-08 15:25 ` Pratik Solanki
[not found] <9cb08bfa04100708182c097689@mail.gmail.com>
[not found] ` <20041007160656.32450.qmail@web52904.mail.yahoo.com>
2004-10-07 16:13 ` Pratik Solanki
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