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Robert
Tux's lil' helper
Tux's lil' helper


Joined: 19 Apr 2002
Posts: 103
Location: Syracuse, NY

PostPosted: Sat Jul 13, 2002 12:13 am    Post subject: Memory issue? Reply with quote

OK heres the issue. I have Gentoo 1.2 running on an XP 2000+ w, 768 megs of ram, 333 Megs swap, Nvidia drivers (gf4) OSS pro and I mainly use Fluxbox in X.

The thing I have noticed is that after running some apps.. Mozilla, Xmms, Realplayer, Sylphead, Win4Lin (occasionally), etc.. The memory section of my top output looks something like this:

Code:

Mem:   775008K av,  634992K used,  140016K free,       0K shrd,   35024K buff
Swap:  345388K av,       0K used,  345388K free                  458808K cached



The memory usage is pretty heavy, although in itself not a real problem. Whats confusing is that looking through top, the running processes do not add up, and if I shutdown all running programs, the memory in use does not decrease.

So after an hour of having only fluxbox and an xterm open I appear to be still using over 600 megs of memory. Any ideas on how I can account for the used memory? Also is there a way to "flush" the memory somehow?

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Robert Brown
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delta407
Bodhisattva
Bodhisattva


Joined: 23 Apr 2002
Posts: 2876
Location: Chicago, IL

PostPosted: Sat Jul 13, 2002 12:18 am    Post subject: Reply with quote

That's your system's cache of block devices. Don't worry about it; use "free" to check memory usage.
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rac
Bodhisattva
Bodhisattva


Joined: 30 May 2002
Posts: 6553
Location: Japanifornia

PostPosted: Sat Jul 13, 2002 12:19 am    Post subject: Reply with quote

What you are seeing is automatic disk caching. When and if you have a more urgent need for the memory, the disk cache will give it up. In short - don't worry about it. Your system is behaving normally and should feel as responsive as ever.
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Robert
Tux's lil' helper
Tux's lil' helper


Joined: 19 Apr 2002
Posts: 103
Location: Syracuse, NY

PostPosted: Sat Jul 13, 2002 12:27 am    Post subject: Reply with quote

Hey thanks guys ;-) definately did not notice any performance issues, so that makes perfect sense. Oh and here's 'free' output:

Code:

bash-2.05a$ free
             total       used       free     shared    buffers     cached
Mem:        775008     633304     141704          0      35192     459316
-/+ buffers/cache:     138796     636212
Swap:       345388          0     345388
bash-2.05a$
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