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Performance problems

Use this information to solve performance problems.

Network performance​

Complete the following steps until the problem is solved:

  1. Isolate network (such as storage, data, and management) to identify the one with compromised performance. You might find it helpful to use ping tools or operating-system tools such as task manager or resource manager.

  2. Check for traffic congestion on the network.

  3. Update the NIC device driver, or the storage device controller device driver.

  4. Use the traffic-diagnostic tools that are provided by the IO-module manufacturer.

Operating system performance​

Complete the following steps until the problem is solved:

  1. If you have recently made changes to the compute node (for example updated device drivers or installed software applications), remove the changes.

  2. Check for any networking issues.

  3. Check the operating system logs for performance related errors.

  4. Check for events related to high temperatures and power issues, as the compute node might be throttled to help with cooling. If it is throttled, reduce the workload on the compute node to help improve performance.

  5. Check for events related to disabled memory modules. Without sufficient memory for application workload, operation system runs with poor performance.

  6. Ensure that the workload is not too high for the configuration.

Processor performance​

Unsupported PSU configuration, CPU power has been capped to 125W.
If this warning message appears, complete the following step:
  1. Replace all the power supply units in Lenovo Flex System Enterprise Chassis with the power supply units that are listed in the latest Lenovo Flex System Enterprise Chassis ServerProven Program. For more information, contact Lenovo Support or see Lenovo Flex System Enterprise Chassis ServerPorven Program.