Configuring IO Direct Cache

Use the IO Direct Cache option to configure PCI Peer to Peer Serialization.

Some configurations, such as systems populated with multiple GPUs on a processor socket, may see increased performance when this feature is enabled.

Procedure
  1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Power and Performance Options > IO Direct Cache.
  2. Select a setting.

    • Enable/Disable IODC (IO Direct Cache)—Generate snoops instead of memory lookups, for remote InvItoM (IIO) and/or WCiLF (cores).

    • Enable for Remote InvItoM Hybrid Push

    • InvItoM AllocFlow

    • InvItoM Hybrid AllocFlow

    • Enable for Remote InvItoM and Remote WViLF

  3. Save your setting.