Re: Cache and linux

["VaibhaV Sharma" <helpindore@xxxxxxxx>]

One observation from me (apart from the cache problemo). We use Linux as our
gateway to the net on a dialup connection. So have to put up Xwindows and
shut it down a number of times in the day without shutting down the system.
The system is up the whole day, sometimes for more than 5 days without
shutting down.

But when the system is shut down, the shutdown messages are full of things
like

shutting down xyz.... No such pid
shutting down abc ... no such pid

I have no idea why this happens but I don have any problem with the setup.

VaibhaV Sharma
webmaster@xxxxxxxxx

- -----Original Message-----
From: Arun Sharma <adsharma@xxxxxxxx>
To: linux-india@xxxxxxxxx <linux-india@xxxxxxxxx>
Date: Wednesday, June 02, 1999 12:30 PM
Subject: Re: Cache and linux


>On Wed, Jun 02, 1999 at 09:48:34AM +0530, GAUTAM VSNL wrote:
>> i have also observed the same thing.in fact if i check virtual memory
>> startx windows and shut it down the xwindows does not free all the
>> memory.i had 10ms used before starting x after starting x i had 60ms used
>> and after shutting it down 35ms used.where did the 25ms go?
>
>Common misconception. Just because you shut X down doesn't mean that
>all the memory used by X will be free'd. The kernel keeps a copy of
>it, just so that if you start X again, it doesn't have to go to the
>disk.
>
>Kernel will start free'ing memory, only when some other program wants
>memory and there isn't any.
>
> -Arun
>
>
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