Configuring Advanced Performance Tuning Options

Use Advanced Performance Tuning to control frequency changes that cause jitters and affect latency. You can manage Jitter Control manually or automatically. You can also specify a frequency to use, regardless of whether the processor frequency changes. For more information about Jitter Control, see HPE Gen10 Servers Intelligent System Tuning at https://www.hpe.com/support/gen10-intelligent-system-tuning-en.

Procedure
  1. From the System Utilities screen, select System Configuration > BIOS/Platform Configuration (RBSU) > Power and Performance Options > Advanced Performance Tuning Options.
  2. Configure settings.
    • Processor Jitter Control—Manages processor frequency variance due to technologies, such as Turbo, that varies the frequency based on power, thermals, and active cores. Jitter Control helps to reduce or remove processor jitter and latency, and improve server performance. Select an option:
      • Auto-tuned—Monitors frequency variance, and automatically adjusts the frequency to minimize variance over time.
      • Manual-tuned—Operates the processor at a fixed frequency, and enables you to select lower or higher frequencies statically.
      • Disabled—Disables Processor Jitter Control.
    • Processor Jitter Control Frequency—Do one of the following:
      • If you selected Auto-tuned, enter a starting frequency unit in MHz.
      • If you selected Manual-tuned, enter a frequency unit in MHz.
      NOTE: If your specified frequency is not supported, the system firmware adjusts the frequency to the nearest higher intermediate frequency supported by the processor.
    • Processor Jitter Control Optimization—When the auto-tuned function detects fluctuations in processor frequency, this option optimizes the thresholds used. Select one of the following:

      • Optimizing for Throughput allows only the amount of fluctuations that doesn't impact overall compute throughput.

      • Optimizing for Latency allows for a very small amount of occasional fluctuations to occur before reducing processor frequency.

      • Zero Latency attempts to eliminate any frequency fluctuations.

    • Core Boosting—Use this feature to produce higher performance across more active processors. Servers that include Core Boosting use extra server power and thermal headroom to reduce common setbacks and maximize processor computing power.

      NOTE:

      Available with select HPE ProLiant Gen10 servers, Intel processors, and hardware configurations. Requires an iLO Advanced Premium Security Edition license.

    • Enhanced Processor Performance: Use this option to enable or disable this feature. When enabled, this option adjusts the processor settings to a more aggressive setting that can results in increased performance, but might results in higher power consumption.

    • Processor Config TDP Level: This option overrides the default CPU policy for SSE, AVX, and AVX-512 deterministic frequencies. This setting results in lowering the deterministic operational frequency. Disabling Turbo Mode enhances the deterministic behavior, but results in a lower operational frequency. The options are Normal, Level 1, Level 2.

  3. Save your changes.