2
votes
2answers
645 views

Graphing atop logs

I just discovered 'atop'. This is a fantastic tool for identifying performance bottlenecks in Linux. It supports a long term monitoring mode, in which it logs data to a binary log. I would like to ...
0
votes
3answers
100 views

In Linux, how to ensure a process is making good use of all proc cores

On CentOs, I have a task that converts files. It runs day and night and I want to ensure its using all 4 cores most of the time. In Windows I can just look at the performance histograms in Task ...
0
votes
1answer
183 views

Why is iftop using so much memory? Are there any tools that are powerful, but do not use so much memory?

pmap iftop_id b7fce000 4K rw--- /lib/ld-2.5.so bf9aa000 84K rw--- [ stack ] total 204940K The memory of the server is only 1GB, but iftop takes 204MB. It is crazy that iftop uses ...
7
votes
5answers
4k views

How to find the process(es) which are hogging the machine

Scenario: All of a sudden, my computer feels sluggish. Mouse moves but windows take ages to open, etc. uptime says the load is 7.69 and raising. What is the fastest way to find out which process(es) ...