Tagged Questions

0
votes
1answer
22 views

Top command cache vs free memory

When I am running top command (on embedded system with 64 MB RAM) I am getting below description on total memory usage: "Mem: 43468K used, 968K free, 0K shrd, 1280K buff, 21896K cached" It looks ...
1
vote
1answer
178 views

Linux memory usage doesn't add up

I try to monitor the memory usage in my ubuntu server. When I run 'top' command, it shows 70% of the memory is used. (shown in the 'Mem:' line). But I want to find the processes that take my memory ...
2
votes
2answers
372 views

Why won't top command show the right result?

You want to find the line 3427 1 root S 36964 124% 2% tmux -L l in the following screenshots of top command. Why can tmux use more than 100 percent of memory? That is confusing... Is ...
3
votes
2answers
1k views

“Cannot allocate memory” while no process seems to be using up memory

I am not competent on server issues, any help is much appreciated. When try to start a python/django shell on a linux box, I am getting OSError: [Errno 12] Cannot allocate memory. free -m seems to ...
1
vote
2answers
225 views

`free -m` shows a program on linux use 322M ram, but `top` show it use 58M, why?

I have a 512M vps box on burst.net, and which has no swap. My os is centos 6.x x64. When it started, it only used 58M ram. $ free -m: total used free shared buffers ...
0
votes
3answers
278 views

Linux Memory Displays Half Used But No Processes Seem to Be Using It

I am running a Java script on a Fedora Core Release 6 server (Linux 2.6.19-1.2911.6.5.fc6xen x86_64) and am concerned about a lack of memory. The box has 2 GB of memory in total. Running "free -tm" ...
0
votes
1answer
397 views

What is Solaris top command “SIZE” column?

I have a node.js process running on a Solaris box. In the top command view, the "RES" column which I guess represents the physical memory is constant and reasonable. However the "SIZE" column keeps ...
5
votes
2answers
1k views

Why does the memory usage in “top” not add up?

I have noticed that sometimes when I run top, the memory usage of each process in the process table does not seem to add up to the total. For example, in the dump below, top says that I am using 16 ...
1
vote
4answers
2k views

memory usage linux in top is not correct

I am a bit worried about my linux vserver box. No more memory is left. To investigate this issue, i was looking at "top". But it deeply confuses me. It seems that no more memory is left, altough ...
0
votes
4answers
346 views

How can I free memory on linux

When I use top to see memory usage, I have 65gb ram but only 1.3gb of it free and remaining is shown as used. When I ran my program It gives memory insufficiency error. Although no other program is ...
5
votes
1answer
938 views

How does top calculate the memory figures on Linux?

I'm a bit confused on how the memory figures add up in top. If I've understood correctly, the amount of "really" used memory is total - free - buffers - cached. In the example below that would be ...
0
votes
1answer
993 views

Memory percentage in top (linux)

Just wondering (1) is the memory percentage in top for a process is relative to memory or relative to memory+swap? (2) if it is the former, how can I get the latter? Vice versa. (3) To determine ...