Feb 072008
Install sysstat for basic system monitoring
Answer:
sysstat is a very useful and minimal tool for basic system resources monitoring, e.g. system load average, memory usage, I/O utilization etc.
To install in Ubuntu,
# sudo apt-get install sysstat
To configure sysstat so it run continuously (as cron)
# sudo dpkg-reconfigure sysstat
Wait sometimes and try the following commands to see the collected statistics,
E.g.
1. Check system load average
# sar -q
2. Check memory usage
# sar -r
For more options,
# man sar
