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-   -   LXTask vs TOP,Memory usage,Who's lieing? (https://www.linuxquestions.org/questions/linux-general-1/lxtask-vs-top-memory-usage-whos-lieing-900783/)

KennyDee 09-02-2011 05:39 PM
LXTask vs TOP,Memory usage,Who's lieing?
 
I recently started using PCLinuxOS LXDE 2011.06,I just checked the memory usage on both apps mentioned
and I was quite surprised from the major difference:
LXTask - 267MB
TOP - 597272k (583MB)

Obviously one of em is reporting it incorrectly,Any idea which? I'd appreciate some input on this.

syg00 09-02-2011 06:03 PM
Quote:
Originally Posted by KennyDee (Post 4459998)
Obviously one of em is reporting it incorrectly
Noooo - not necessarily.
That presumes they are reporting the same thing. A definitive definition of "memory usage" under Linux has defied the combined nous of the kernel devs (last I looked).
Generally the confusion is between whether cache/buffers are included in the numbers or not. Lots of threads here on this - have a look at "free -m" (note the second line), and see what correlates with what.

KennyDee 09-02-2011 09:19 PM
FreeM was more in line with top,Anyhow,After some googlin' around i was able to sort out LXTask,Seems that by default it shows cached memory as free,I unchecked that option and it's now
reporting it correctly so I guess this is solved,Thanks for your help.

speck 09-04-2011 12:53 AM
Most people consider the highlighted numbers below to be ones you should be watching. In my example, I'm using 586MB RAM and have almost 2.5GB RAM free.

Code:
$ free -m
            total      used      free    shared    buffers    cached
Mem:          3031      1855      1176          0        680        588
-/+ buffers/cache:        586      2445
Swap:          512          0        511


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