Brian,

Linux will take RAM to use as disk cache and then gives it back whenever
a program needs it, is this what you are seeing?

There is a way of telling how much it is actually using, but it escapes
me at the moment. The non-elegant way to do it is to type "ps -aux" and
total up the memory being used.

Thanks,

Allan

Brian Smith wrote:
> 
> OK - I'm recognizing all my (256Mb) memory without the option & I'm not
> knowingly doing anything thready. However, it appears I was fibbing about
> the memory beeing hogged from the start - before I do anything I get
> 
>              total       used       free     shared    buffers     cached
> Mem:        257536      28592     228944      13976       1988      13524
> -/+ buffers/cache:      13080     244456
> Swap:       272136          0     272136
> 
> 28Mb for a fantastic operating system - no problem.  Even with X + gnome
> on top I'm not too concerned (though I might go back to fvwm or something
> littler than gnome/sawfish)
> 
>              total       used       free     shared    buffers     cached
> Mem:        257536      63896     193640      46632       3204      30312
> -/+ buffers/cache:      30380     227156
> Swap:       272136          0     272136
> 
> So what it looks like to me is that there is a problem freeing up memory
> after a program has closed - for example open netscape and then close it
> 
> before
>              total       used       free     shared    buffers
> cached
> Mem:        257536      65816     191720      47980       3268      30648
> -/+ buffers/cache:      31900     225636
> Swap:       272136          0     272136
> 
> during
>              total       used       free     shared    buffers
> cached
> Mem:        257536      86244     171292      59508       3456      43056
> -/+ buffers/cache:      39732     217804
> Swap:       272136          0     272136
> 
> after
>              total       used       free     shared    buffers     cached
> Mem:        257536      80148     177388      48200       3572      43116
> -/+ buffers/cache:      33460     224076
> Swap:       272136          0     272136
> 
> So quite quickly you can stack up over 100Mb of "used" memory which never
> seems to come free again.  This hasn't been a problem so far on this
> machine, but a colleague who only has 128Mb in her machine quickly
> gets into ugly swapping situations.
> 
> Yours,
>         Brian
> 
> On Thu, 8 Mar 2001, Paul Millar wrote:
> 
-- 
Intel: We put the 'um...' in Pentium.
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