Subject: [PATCH 0/2] introduce PM QoS interface The system-wide CPU latency QoS limit has a positive impact on the idle state selection in cpuidle governor.
Linux creates a cpu_dma_latency device under '/dev' directory to obtain the CPU latency QoS limit on system and send the QoS request for userspace. Please see the PM QoS framework in the following link: https://docs.kernel.org/power/pm_qos_interface.html?highlight=qos This feature is supported by kernel-v2.6.25. The deeper the idle state, the lower the power consumption, but the longer the resume time. Some service are delay sensitive and very except the low resume time, like interrupt packet receiving mode. So this series introduce PM QoS interface. Huisong Li (2): power: introduce PM QoS interface examples/l3fwd-power: add PM QoS request configuration doc/guides/prog_guide/power_man.rst | 16 ++++ doc/guides/rel_notes/release_24_03.rst | 4 + examples/l3fwd-power/main.c | 41 +++++++++- lib/power/meson.build | 2 + lib/power/rte_power_qos.c | 98 ++++++++++++++++++++++++ lib/power/rte_power_qos.h | 101 +++++++++++++++++++++++++ lib/power/version.map | 4 + 7 files changed, 265 insertions(+), 1 deletion(-) create mode 100644 lib/power/rte_power_qos.c create mode 100644 lib/power/rte_power_qos.h -- 2.22.0
