Revision as of 12:27, 11 October 2010

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

xentrace: See also: [xentrace example]
xentrace_format

Configuring the xentrace

get the xentrace_formats file
- extract the tools/xentrace/formats file from the source code.
- Get the source code at: http://www.xen.org/products/xen_archives.html

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

@@ Line 101: / Line 101: @@
 === Performmance measurements on various virtualization soulutions ===
 * [[http://www.ilsistemista.net/index.php/virtualization/1-virtual-machines-performance-comparison.html?start=6|Virtual machines performance comparison: vmware vs virtualbox vs kvm vs xen - I/O benchmarks: Windows 2008 installation time]]
+* [[http://www.usenix.org/event/usenix06/tech/menon/menon_html/paper.html|Optimizing Network Virtualization in Xen]
 == Trouble shooting ==

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