Thank you both for your help. I'd like to summarize the CLIs that I have used to check the offending application: 1. top - press <M> [capital M] - this sorts the summarized memory util version in by memory usage. 2. ps type: ps -eo pid,vsz,rss,args --sort rss | more where: pid - process ID vsz - virtual memory usage rss - resident set size (physical RAM) args - command args to display the processes I am sorting it by physical RAM output. .... free and `cat /proc/meminfo` - provides me a summary snapshot of free and used memory related statistics; for my purpose the ps CLI above allowed me to see in detail the offending application. thanks again. - a. > On Friday 27 February 2004 04:07 pm, a s p a s i a wrote: >> hello, >> >> i have 12gig of RAM; checking top i noticed >> that i only have aroun 500mb fee memory ... >> though it shows percentage of memory utilized >> by an app ... is there a CLI that I can use to >> exactly trace which application or process is >> using most of my memory, and exactly how much? > > Usually the kernel cache the memory so that it can access it faster. If I > am > not mistaken, "free" and "top" shows the memory left that are not cached. > The > cached memory is not necessarily used by the application (yet). > > If you use "free", the second line that says "-/+ buffers/cache:" shows > you > how much memory is actually use by apps, and how much is cached. > > Someone please correct me if I'm wrong. > > HTH. > > RDB > -- > Reuben D. Budiardja > Department of Physics and Astronomy > The University of Tennessee, Knoxville, TN > --------------------------------------------------------- > "To be a nemesis, you have to actively try to destroy > something, don't you? Really, I'm not out to destroy > Microsoft. That will just be a completely unintentional > side effect." > - Linus Torvalds - > > > -- > redhat-list mailing list > unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe > https://www.redhat.com/mailman/listinfo/redhat-list > -- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list