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Re: Clearing SWAP



Ron Johnson wrote:
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On 05/01/08 15:43, andy wrote:
  
Of 2863MB of SWAP, some 1881MB are being used. This is a capture of top:

15055 andy      20   0 34520  14m 4896 R   98  1.5   0:01.60 kbuildsycoca
14950 andy      20   0  171m  88m  27m S   55  9.0  15:52.20 iceape-bin
3890 root      20   0  123m  68m 8184 S    4  7.0  41:54.30 Xorg
 161 root      15  -5     0    0    0 S    2  0.0   0:32.91 kswapd0
4881 andy      20   0 19776 5672 4460 S    2  0.6  11:38.49 xfce4-systemloa
   1 root      20   0  2032  548  520 S    0  0.1   0:05.08 init
   2 root      15  -5     0    0    0 S    0  0.0   0:00.00 kthreadd
    
[snip]
  
 791 root      15  -5     0    0    0 S    0  0.0   0:01.08 usb-storage
 816 root      15  -5     0    0    0 S    0  0.0   0:00.00 ata/0

and of free:
$ free
            total       used       free     shared    buffers     cached
Mem:       1003576     986260      17316          0       9868     139320
-/+ buffers/cache:     837072     166504
Swap:      2931852    1928848    1003004

How can I clear out SWAP so that it does not retain redundant memory
allocated pages?
    

# swapoff -a
# swapon -a

  
                  I am thinking if SWAP can be cleared, my machine will
be more responsive with current pages written to SWAP, rather than
taking up space written by now obsolete processes.
    

I'm not sure that this will do what you want...
  
Perhaps not. However, my uptime is only 7 days with one user. Yet it takes several seconds for my Xfce4 (light and fast) to respond. I am unable to load a larger amount of RAM, and my system is sluggish even with 1GB of RAM. What is a poor Deb Lenny user to do? SWAP seemed like a logical culprit.
The virtual memory is some 798MB of 980MB and I have only KSCD, KMail, Konsole. OO.o Writer, IceApe, IceDove, and this IceDove composer windows open.

When I double click within Xfce on the /home directory icon, there is a noticeable lag between clicking and a response. What causes this? Must I reboot every few days so as to release memory to allow my system to be more responsive? This isn't the GNU/Linux I know and love from my Slackware days. What is wrong with my configuration?
-- 

"If they can get you asking the wrong questions, they don't have to worry about the answers." - Thomas Pynchon, "Gravity's Rainbow"

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