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[Ladislav Hagara <hgr AT vabo.cz>]

Utilities for performance monitoring.
Have a nice day.
- ladislav hagara -


root@sourcemage:~# gaze what atop
Atop is an ASCII full-screen performance monitor similar to the command
top. For every interval (default 10 seconds), it shows system-level
activity related to the CPU, memory, swap, disks and network layers, and

it shows for every active process the CPU utilization in system and user

mode, the virtual and resident memory growth, priority, username, state,

and exit code. The process level activity is also shown for processes
which finished during the last interval (for this reason process
accounting is switched on), to get a complete overview about the
consumers of things such as CPU time. Atop only shows the active
system-resources and processes, and only shows the deviations since the
previous interval (e.g., the memory growth rather than total memory
usage
per process).

root@sourcemage:~# gaze what atsar
The atsar command can be used to detect performance bottlenecks on
Linux systems. It is similar to the sar command on other UNIX
platforms. Atsar has the ability to show what is happening on the
system at a given moment (by supplying an interval as command-line
argument). However, it also keeps track of the past system load by
maintaining history files from which information can be extracted.
Statistics about the utilization of CPUs, disks and disk partitions,
memory and swap, tty's, TCP/IP (v4/v6), NFS, and FTP/HTTP traffic are
gathered.

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