Huawei Proposes Enabling CPU Boost by Default for ACPI CPPC Linux Driver
Huawei has made a proposal for the ACPI CPPC CPUFreq driver used on ARM64 Linux server platforms. This proposal involves enabling the CPU's "boost" mode by default.
Summary: Huawei has made a proposal for the ACPI CPPC CPUFreq driver used on ARM64 Linux server platforms. This proposal involves enabling the CPU’s “boost” mode by default.
This news discusses Huawei’s proposal for a performance improvement to the Linux kernel. Specifically, the ACPI Collaborative Processor Performance Control (CPPC) CPUFreq driver, used on ARM64 server platforms, keeps the CPU’s “boost” mode disabled by default.
ACPI CPPC is an interface that allows the operating system to control CPU performance states in more detail. “Boost” mode enables the CPU to operate at higher frequencies for short periods, increasing performance for single-threaded or intensive workloads. Currently, this mode is off by default due to concerns about power consumption.
For infrastructure engineers, this is a change that could directly impact performance expectations, especially on ARM64-based servers. If this proposal is accepted, higher performance might be achieved by default, but careful consideration of power consumption and thermal management might also be necessary.
Such a change could be beneficial for latency-sensitive applications or bursty workloads. However, in environments where energy efficiency is critical, engineers might need to manually manage or disable the boost mode.
🔗 Source: Phoronix Hardware
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