Re: Fedora: Core 1 or Core 2 for new install?

From: natG (natgrossDOTrentalsystems_at_verizon.net)
Date: 03/19/04 

Date: Fri, 19 Mar 2004 15:33:14 GMT

chemist109 wrote:

>>Thank you much for the pointers and vnc. I just peeked at the system
>>monitor and was horrified to see that I am using 493 meg ram! I though
>>Linux was lean! (Another reason I didn't want it on top of Windows -free
>>ram-.) Funny thing is that if I add up all the proces' ram it amounts
>>to about 150meg ram (which is HUGE), but again the system tells me that
>>its using 493 meg ram! NO APPS LOADED.
>>Maybe I should just re-install and not "just click" on the "everything"
>>option.
>>-nat
>>
>>
>
>The RAM question is a bit deceptive. Linux allocates all the RAM in the
>system for itself when it boots. It then releases RAM to applications as
>they request it. It uses the RAM that it doesn't need for running
>processes as a disk cache.
>
>Hey, you paid good money for that RAM and Linux wants you to get every bit
>of your money's worth! Most times, my system doesn't even touch the swap
>partition.
>
>
>
>I re-installed and the numbers make much more sense now, about 150 meg ram for programs and cache.
>
-nat

Relevant Pages

  • Re: Swapping in 2.6.10 and 2.6.11.11 on a desktop system
    ... real ram usage drops to a bare minimum and cache ... data belonging to applications and IOs are not repeating very often (disk ... Use as much disk cache as there is free RAM. ...
    (Linux-Kernel)
  • Re: Caching control
    ... but that should not affect mapped memory. ... | that it's effectively flushing the disk cache, ... Or is it disk I/O that's slow? ... boundary between RAM for disk cache and RAM for all other uses. ...
    (comp.os.linux.development.system)
  • [SLE] adjust disk cache
    ... about 49MB of my total 128MB of ram is being consumed by disk cache. ... What is the effect/ Is there a test program so I ... I have 6 to 10% of my physical ram free, ... Serving the San Francisco Bay Area Since 1967 ...
    (SuSE)
  • Re: Caching control
    ... |> images as disk cache if they aren't modified? ... ?That increased size means less RAM available ... and the change of size even triggers more disk I/O. ... If file space allocation is deferred, ...
    (comp.os.linux.development.system)
  • Re: Hardware
    ... A really fast drive array can make a substantial ... difference supporting your disk cache. ... The more RAM the better supporting your Web Proxy Cache. ...
    (microsoft.public.isa)