Windows 7 / Networking

Performance Monitor

You can use Performance Monitor to view thousands of real-time counters containing information about your computer or a remote computer. When troubleshooting network performance problems, you can use Performance Monitor to view current bandwidth utilization in a more detailed way than provided by Task Manager or Resource Monitor. Additionally, Performance Monitor provides access to counters measuring retries, errors, and much more.

Performance Monitor provides access to the following categories, which contain counters that might be useful for troubleshooting network problems:

  • .NET CLR Networking Examines network statistics for specific Microsoft .NET Framework applications. Use these counters if you are experiencing applicationspecific networking problems and the application is based on the .NET Framework.
  • BITS Net Utilization Provides statistics related to Background Intelligent Transfer Service (BITS), which is used to transfer files in the background. Windows Update, among other applications, uses BITS to transfer files. Use these counters if you think a network performance problem might be related to BITS transfers or if BITS transfers do not perform as expected.
  • Browser Provides statistics related to the Computer Browser service, which is used to browse network resources. Use these counters only if you are troubleshooting problems with browsing local networks, specifically for resources such as Windows XP or earlier versions of Windows.
  • ICMP and ICMPv6 Provide ICMP statistics. ICMP is used by tools such as Ping, Tracert, and PathPing. Use these counters only if you are actively using ICMP to test network connectivity.
  • IPsec AuthIPv4, IPsec AuthIPv6, IPsec Driver, IPsec IKEv4, and IPsec IKEv6 Provide Internet Protocol security (IPsec) statistics. Use these counters if you are experiencing networking problems and IPsec is enabled in your environment.
  • IPv4 and IPv6 These categories provide Layer 3 networking information, such as fragmentation statistics. If you need to monitor total network utilization, you should use the Network Interface counters instead.
  • NBT Connection Provides information about bytes sent and received for NetBIOS networking, such as file and printer sharing.
  • Network Interface The most useful category for troubleshooting, this provides counters for all network traffic sent to and from a single network adapter. These counters are the most reliable way to measure total network utilization. Network Interface counters also provide information about errors.
  • Redirector Provides statistics gathered from the Windows redirector, which helps direct traffic to and from different networking features. Interpreting most of these counters requires a detailed understanding of the Windows network stack. However, the Network Errors/sec counter can be useful for diagnosing network problems.
  • Server Provides statistics related to sharing files and printers, including bandwidth used and the number of errors. Use these counters when troubleshooting file and printer sharing from the server.
  • TCPv4 and TCPv6 Provide information about TCP connections. Of particular interest for troubleshooting are the Connection Failures, Connections Active, and Connections Established counters.
  • UDPv4 and UDPv6 Provide information about UDP communications. Use these counters to determine whether a computer is sending or receiving UDP data, such as DNS requests. Monitor the Datagrams No Port/sec and Datagrams Received Errors counters to determine whether a computer is receiving unwanted UDP traffic.

To access Performance Monitor, follow these steps:

  1. Click Start, right-click Computer, and then click Manage.
  2. Expand System Tools, expand Performance, and then expand Monitoring Tools. Click Performance Monitor.
  3. Add counters to the real-time graph by clicking the green plus sign on the toolbar.
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In this tutorial:

  1. Troubleshooting Network Issues
  2. Tools for Troubleshooting
  3. Table-1 Network Troubleshooting Tools
  4. Arp
  5. How to Identify a Problem with the ARP Cacher
  6. How to Clear the ARP Cache
  7. Event Viewer
  8. IPConfig
  9. Nblookup
  10. Nbtstat
  11. Net
  12. How to View Shared Folders on the Local Computer
  13. How to View Shared Folders on Another Computer
  14. Netstat
  15. Network Monitor
  16. Nslookup
  17. Verifying that the Default DNS Server Resolves Correctly
  18. Verifying that a Specific DNS Server Resolves Correctly
  19. Verifying Specific Types of Addresses
  20. Using TCP for DNS Lookups
  21. PathPing
  22. PathPing Output
  23. Routing Loops
  24. Performance Problems
  25. Possible Connectivity Issues
  26. No Connectivity Issues
  27. Performance Monitor
  28. Data Collector Sets
  29. Windows Resource Monitor
  30. Ping
  31. PortQry
  32. Identifying the TCP Port for a Service
  33. Windows 7 Testing Service Connectivity
  34. Determining Available Remote Management Protocols
  35. Why PortQry Is Great
  36. Route
  37. Task Manager
  38. TCPView
  39. Telnet Client
  40. Testing Service Connectivity
  41. Test TCP
  42. Windows Network Diagnostics
  43. The Process of Troubleshooting Network Problems
  44. How to Troubleshoot Network Connectivity Problems
  45. How to Troubleshoot Application Connectivity Problems
  46. Default Port Assignments for Common Services and Tasks
  47. How to Troubleshoot Name Resolution Problems
  48. How to Verify Connectivity to a DNS Server
  49. How to Use the Hosts File
  50. How to Troubleshoot Performance Problems and Intermittent Connectivity Issues
  51. How to Troubleshoot Joining or Logging on to a Domain
  52. How to Verify Requirements for Joining a Domain
  53. How to Troubleshoot Network Discovery
  54. How to Troubleshoot File and Printer Sharing
  55. How to Troubleshoot File and Printer Sharing from the Client
  56. How to Troubleshoot File and Printer Sharing from the Server
  57. How to Troubleshoot Wireless Networks
  58. Network Diagnostics
  59. How to Troubleshoot Firewall Problems