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How Can I Enable Virtual Memory on a Windows ECS?

Updated on 2025-01-27 GMT+08:00

Enabling ECS virtual memory will deteriorate I/O performance. If the ECS memory is insufficient, increase the memory by performing the operations in Modifying ECS Specifications (vCPUs and Memory). If you really need to enable virtual memory, see the operations described below.

NOTE:

If the memory usage is excessively high and the I/O performance is not as good as expected, you are not advised to enable virtual memory. The reason is as follows: The excessively high memory usage limits the system performance improvement. Furthermore, frequent memory switching requires massive additional I/O operations, which will further deteriorate the I/O performance and the overall system performance.

The operations described in this section are provided for the ECSs running Windows Server 2008 or later.

  1. Right-click Computer and choose Properties from the shortcut menu.
  2. In the left navigation pane, choose Advanced system settings.

    The System Properties dialog box is displayed.

  3. Click the Advanced tab and then Settings in the Performance pane.

    The Performance Options dialog box is displayed.

    Figure 1 Performance Options
  4. Click the Advanced tab and then Background Services in the Processor scheduling pane.
  5. Click Change in the Virtual memory pane.

    The Virtual Memory dialog box is displayed.

  6. Configure virtual memory based on service requirements.
    • Automatically manage paging file size for all drives: Deselect the check box.
    • Drive: Select the drive where the virtual memory file is stored.

      You are advised not to select the system disk to store the virtual memory.

    • Custom size: Select Custom size and set Initial size and Maximum size.

      Considering Memory.dmp caused by blue screen of death (BSOD), you are advised to set Initial size to 16 and Maximum size to 4,096.

    Figure 2 Virtual Memory
  7. Click Set and then OK to complete the configuration.
  8. Restart the ECS for the configuration to take effect.

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