0
votes
0answers
15 views

Linux Memory utilization? [duplicate]

Actually I use Linux centOS 6.2 version. recently I am assigned to monitor system utilization like memory,cpu,IO,network and all the stuffs. To perform this I have enabled SAR using systat and it ...
0
votes
0answers
53 views

log specific process cpu and memory usage by name

I want to log specific process, CPU and Memory usage , for period of time. I prefer to use process name instead of pid, because I don't know when the process execute. For example htop or top has any ...
-1
votes
3answers
464 views

Is this server using too much RAM or virtual memory ? (screen attached) [closed]

I have a VPS with 512MB of ram 40GB storage 1CPU, I run a small domain parking service on it. It is on CentOS, MySQL, Apache, etc. Now my hosting provider claims that my server is putting too much ...
0
votes
1answer
365 views

Sum of memory of few processes in top is greater than 100%

I'm trying to calculate the amount of memory used by AMP in an LAMP stack machine. top -bn1 | grep -E '(mysql|httpd|php)' | awk '{mem += $(NF-2)} END {print mem}' But the sum generated using the ...
1
vote
4answers
189 views

Is there any tool that I can use to monitor memory usage of each process on Linux easily?

This issue is not the same as the question on how to see the memory usage of a Linux process. Also, the top command doesn't give the exact memory used, but just what percentage one process uses, so ...
0
votes
1answer
544 views

memory difference on top and htop

I got a new VPS as my database server. I installed only mysql and started. After some time(even after shutting down mysql service), I see only %3-4 of the memory used in htop but according to top I ...
2
votes
2answers
4k views

What is using all my RAM? Understanding the output of top

I've read a number of top memory use questions but I don't think they answer this. Here's the most significant part of a top run: top - 01:11:41 up 4 days, 1:06, 3 users, load average: 0.00, ...
2
votes
2answers
1k views

Ubuntu server using too much memory

my server is at a very high memory usage constantly - to the point that it won't let me log in via ssh some times. I have to reboot the server before I can log in and when it's restarted the memory ...
0
votes
1answer
148 views

“Used” memory in top larger than the VmSize of all pocesses listed in /proc/?

It used to be my understanding that top's definition of memory "use" was the number of physical pages mapped to any processes. However, recently I saw something that made me think otherwise. I'd ...
7
votes
3answers
13k views

Something eats all memory (I suspect memory leak on some app). How to detect what?

I have server which runs liquidsoap+icecast bundle and simple website (httpd+mysqld). Nothing special. Visitors around 2000+ per day, with around 50 being online simultaneously on average. Server has ...
2
votes
4answers
2k views

Linux high memory usage (top total mismatch)

I havea poor mans vps - 256MB dedicated RAM. I have installed LAMP. No website is currently UP on the server yet. The memory usage is still 225MB (only 31 MB free). I have measured using top and ...
3
votes
3answers
4k views

Why does 'top' indicate low memory usage, whilst 'free' indicates high memory usage?

Why does 'top' indicate low memory usage, whilst 'free' indicates high memory usage? Mem: 262144k total, 225708k used, 36436k free, 47948k buffers Swap: 262136k total, 40k used, ...