Tracking threads memory and CPU consumption

Question

I\'m writing a Linux application which observes other applications and tracks consumption of resources . I\'m planning work with Java, but programming language isn\'t import

Answer 1

If you're willing to use Perl take a look at this: Sys-Statistics-Linux

I used it together with some of the GD graphing packages to generate system resource usage graphs for various processes.

One thing to watch out for - you'll really need to read up on /proc and understand jiffies - last time I looked they're not documented correctly in the man pages, you'll need to read kernel source probably:

http://lxr.linux.no/#linux+v2.6.18/include/linux/jiffies.h

Also, remember that in Linux the only difference between a thread and process is that threads share memory - other than that they're identical in how the kernel implements them.