Re: Cache and linux

[Arun Sharma <adsharma@xxxxxxxx>]

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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