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 ...
10
votes
0answers
541 views

How to find which file is under heavy use/IO [duplicate]

Application on the Linux server is using several large files of 10-20 GB in size. It is constantly writing and reading on all of them, I want to see usage details: which file is under heavy use, see ...
0
votes
1answer
118 views

Does 'top' show memory / CPU usage of parallel processes on cluster?

Recently inherited a neglected cluster: I'm trying to do some sanity checks on it. Running a benchmark on node X and then running 'top' shows high cpu usage from mpi processes (as expected), but on ...
1
vote
1answer
169 views

How to monitor server resources? [duplicate]

I would like to monitor the resources of my servers such as CPU, memory, disk space and many other things. I'm using Nagios + Centreon to do this, but I would like to have a historical view of the use ...
1
vote
1answer
76 views

How can I see which applications have accessed a certain file within a given time period on Linux?

Is it possible on Linux to find out which applications have accessed a certain file in the last 24 hours? I've come with a few possible solutions: Watch lsof. It works, but it's constrained to ...
0
votes
4answers
225 views

How to determine the cause of high resource usage for two hours last week?

I know there are several tools I can use to find out what's causing heavy network and CPU usage right now, but every so often on my server I'll check the logs and notice that there were periods of ...
0
votes
2answers
67 views

Linux - get a report of what programs a command line perl script calls and the files it produces and uses

I have a Perl script that calls about 10 other perl scripts some of which call Python scripts. Each of those produce files which the other programs read. It's pretty complex. What I would like to ...
0
votes
3answers
250 views

linux system resource analyzer

I have a debian 5 machine that is running php, apache, node.js, and mysql. I would like some report-generating software that will show cpu, memory usage, and network traffic over time. something ...
4
votes
1answer
224 views

“Enterprise Monitoring Solution” with the lightest agent?

I have a network of disparate remote VPS / "cloud" / colocated servers that I would like to monitor from a central location, using open source software like ...
1
vote
1answer
168 views

Linux: How do I arrive at an acceptable number of threads (/proc/loadavg)?

This question relates to monitoring. The tool that I use (Check_MK) sets a number of threads warning limit at 2000. This number is taken from /proc/loadavg: [foo@bar ~]$ cut /proc/loadavg -f4 -d\ ...
4
votes
1answer
617 views

Linux Cumulative User, System CPU Usage of Running Process?

On Linux (and other Unix-like OS's if there's a general answer), is there an easy way to get an output similar to the time command (current real time, user, and system CPU usage totals) for a process ...
3
votes
7answers
3k views

What is the best tool for linux monitoring? [closed]

I need to monitor services like Apache, Mysql , Mongrel, Rails, Exim and also Load, Network, I/O on a linux server ... I do know Cacti, Nagios ... Is there any other better monitoring tool ?