From Fedora Project Wiki
Performance observation short cuts for noobs
Introduction
Purpose
Scope
Acronyms, descriptions
References
- http://www.linux-kvm.org/page/Documents
- KVM documentation page.
- [Webcast: When Times Get Tough, The Tough Get Tuning]
- Dee-Ann LeBlanc of Splunk shows how you can get better performance from your hardware without throwing dollars at it.
Open issues
Installing the packages needed
- yum install sysstat
- This contains 'sar' and 'iostat'
Operating Environment
Storage
Network
Virtualiser
- http://www.xen.org/files/xensummit_intel09/xen-debugging.pdf
- http://xenbits.xensource.com/ext/xenalyze.hg
- http://wiki.xensource.com/xenwiki/XendInternalsDebugging
- xentrace
- See also: [xentrace example]
- xentrace_format
Administration
Scratch pad
INSTALLATION
yum install sysstat sar and iostat
XOSview GKRellM gnuplot
vmstat mpstat -P ALL top sar iostat ps
RAM vmstat -s free
cpu
sar -P ALL -u ALL 10 10
NETWORK
netstat
-i -a -s -f
iostat ttcp
IO Performance
iostat
-x
vmstat sar nfsstat bonnie++
TUNING MME sysctl and sysctl.conf