Top 5 VMware Performance Issues

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Did you know that 53% of all companies have VMware servers with Performance degradation due to Memory Swap In/Swap Out? This presentation details a survey of the top 5 VMware performance issues. We will share how businesses can evaluate and evolve their network infrastructure performance and get the most out of their VMware Infrastructure. This presentation explores the VMware Troubleshooting Guide and how to use that information to improve your environment.


- Which overlooked items can have the most impact on your VMware performance
- How to use information that is available at your fingertips
- How to gather this information in your own environment
- And the best practices for delivering high-performance VMware to support your business

Published in: Technology

Top 5 VMware Performance Issues

  1. 1. Virtualization Webinar Series 5 Most Common VMware Performance Issues January 22, 2014 Speaker: Jeremy Littlejohn, Founder and Chief Analyst RISC Networks
  2. 2. Agenda 1) Which items have the most impact on your VMware performance 2) How to use information that is available at your fingertips 3) How to gather this information in your own environment 4) Best practices for a high-performance VMware environment
  3. 3. Analysis & Trends 101001011100 0 1 1 0 0 1 0 0 11 0 1 110010101011 001001110101 By The Numbers
  4. 4. What’s Actually Running The average # of VM’s on a single host is 15
  5. 5. The Highest # of VM’s on a single host 987 VM’s The highest # of VM’s on a single host was 987
  6. 6. Survey Question What Platform Are You or Your Customers Using The Most With Vmware?
  7. 7. Most Common Platforms Running VMware 1.Dell R710 2.Cisco N20 UCS B-Series 3.HP Proliant DL380 G7 4.HP Proliant DL 380 G6 5.Dell PowerEdge 2950
  8. 8. Trend is Shifting • The most common hardware platform running VMware vSphere 4.X Dell R710 • The most common hardware platform running VMware vSphere 5.x Cisco UCS –B Series 4.X 5.X
  9. 9. Top 5 Performance Issues
  10. 10. # 5 Most Common VMware Issue 33% of businesses have CPU oversubscription within their VMware hypervisors Learn More: VMware recommends less than 5% ready time for all VMs’
  11. 11. # 4 Most Common VMware Issue 53% Organizations have VMware Servers with performance degradation due to Memory Swap In / Swap Out. Learn More: Performance Troubleshooting for VMware vSphere
  12. 12. # 3 Most Common VMware Issue 53% of businesses have storage latency within their VMware environment Learn More: troubleshooting-storage-performance-in-vsphere-part-1-the-basics
  13. 13. # 2 Most Common VMware Issue 63% of VMware systems have swap wait
  14. 14. # 1 Most Common VMware Issue 64% 26% 64% of organizations have receive packet loss occurring on virtual switch ports and 26% have transmit packet loss occurring on virtual switch ports
  15. 15. Survey Question What Vmware Performance & Monitoring Tools Are You Using?
  16. 16. Before After Establishing a Performance Baseline
  17. 17. Infrastructure Performance Statistics 10 In order to establish an effective baseline, you have to focus on more than ONE dimension. 9 8 7 6 5 4 3 2 1 Infrastructure Performance Statistics CPU Usage
  18. 18. Cross-Functional Analysis Data Center 54% Vmware Perf Problems 33 % Oversubscribed Line Cards 47 % Storage Perf Problems 73 % Network Perf Problems 1. 2. 3. 4. 5. Don’t Just Focus on CPU usage Analyze Disk I/O Analyze Network I/O Capture Network Traffic Look at the network relations and dependency
  19. 19. Analyze, Don’t Monitor VS
  20. 20. Collect (at least) the following data • CPU • Usage % • % Steal time OR % Ready Time Data Collection • Memory • Swap In/Out Rate (hypervisor if virtual) • CPU % Wait Time (can show disk slowness for swapping) • VM Swap Wait • Disk • IOPS (I/O Per Second) • I/O Block Size • Latency and Queue Length • Network • Packet Loss % • Delay
  21. 21. How to analyze my Environment?
  22. 22. Gather Data • General usage info for CPU, Memory, Disk • Current usage and impact on performance • Current network performance information • Virtualized environment analysis
  23. 23. Benchmarking • Clearly identify specific areas of opportunity • Set performance expectations • Validate infrastructure assumption • Monitor company performance and manage change
  24. 24. Resources Performance and Troubleshooting Guide http://www.vmware.com/resources/techresources/10179 http://blogs.vmware.com/vsphere/2012/05/troubleshooti ng-storage-performance-in-vsphere-part-1-thebasics.html http://www.vkernel.com/files/docs/white-papers/top-20vmware-performance-metrics.pdf
  25. 25. Our Analysis
  26. 26. Our Analysis
  27. 27. Our Analysis by the #’s 97,000 Virtual Machines VMware Virtual Machines Analyze
  28. 28. Our Analysis by the #’s 4,000 + Business Networks Analyzed
  29. 29. Our Offering
  30. 30. IT HealthCheck
  31. 31. IT HealthCheck • • • • Quick & Easy Analysis – as little as 7 days Improve & Optimize Network Infrastructure Holistic Data Set Across Multiple Technologies Solves problem faster and helps with planning
  32. 32. Upcoming Webinars • Subscribe to our BrightTALK™ Channel: https://www.brighttalk.com/channel/10539 • • • • February 5th – Why Network Testing is Critical for Cloud Success February 19th – Top 5 Network Infrastructure Performance Issues March 5th – Be Confident That Your Cloud Solution is Working Well March 12th – Performance Benchmarking for Private and Hybrid Cloud
  33. 33. Thank you
  34. 34. About Us At RISC Networks we imagine a world where IT leaders are not constrained by the complexities of their IT tools. We have a perspective, a different way of thinking about IT, a simpler way! We believe you should have more meaningful data analysis; information that actually helps guide you in solving your problems, tools that help you research and take immediate action. IT – As simple as it should be™ Based in Asheville, North Carolina, RISC Networks is a Actionable IT Analytics firm that focuses on developing research and technology that helps IT organizations improve their IT operations. More information is available at: http://www.riscnetworks.com/. Follow RISC Networks on Twitter @Risc_Networks or on Facebook at http://www.facebook.com/RiscNetworks. 60+ Partners Including (but not limited to):

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