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From: Huisong Li <lihuisong@huawei.com>
To: <dev@dpdk.org>
Cc: <mb@smartsharesystems.com>, <thomas@monjalon.net>,
	<ferruh.yigit@amd.com>,  <anatoly.burakov@intel.com>,
	<david.hunt@intel.com>, <sivaprasad.tummala@amd.com>,
	<stephen@networkplumber.org>, <konstantin.ananyev@huawei.com>,
	<david.marchand@redhat.com>, <fengchengwen@huawei.com>,
	<liuyonglong@huawei.com>, <lihuisong@huawei.com>
Subject: [PATCH v14 0/3] power: introduce PM QoS interface
Date: Tue, 29 Oct 2024 21:28:01 +0800	[thread overview]
Message-ID: <20241029132804.27613-1-lihuisong@huawei.com> (raw)
In-Reply-To: <20240320105529.5626-1-lihuisong@huawei.com>

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.

And the "/sys/devices/system/cpu/cpuX/power/pm_qos_resume_latency_us" sysfs
interface is used to set and get the resume latency limit on the cpuX for
userspace. Please see the description in kernel document[1].
Each cpuidle governor in Linux select which idle state to enter based on
this CPU resume latency in their idle task.

The per-CPU PM QoS API can be used to control this CPU's idle state
selection and limit just enter the shallowest idle state to low the delay
when wake up from idle state by setting strict resume latency (zero value).

[1] https://www.kernel.org/doc/html/latest/admin-guide/abi-testing.html?highlight=pm_qos_resume_latency_us#abi-sys-devices-power-pm-qos-resume-latency-us

---
 v14:
  - use parse_uint to parse --cpu-resume-latency instead of adding a new
    parse_int()
 v13:
  - not allow negative value for --cpu-resume-latency.
  - restore to the original value as Konstantin suggested.
 v12:
  - add Acked-by Chengwen and Konstantin
  - fix overflow issue in l3fwd-power when parse command line
  - add a command parameter to set CPU resume latency
 v11:
  - operate the cpu id the lcore mapped by the new function
    power_get_lcore_mapped_cpu_id().
 v10:
  - replace LINE_MAX with a custom macro and fix two typos.
 v9:
  - move new feature description from release_24_07.rst to release_24_11.rst.
 v8:
  - update the latest code to resolve CI warning
 v7:
  - remove a dead code rte_lcore_is_enabled in patch[2/2]
 v6:
  - update release_24_07.rst based on dpdk repo to resolve CI warning.
 v5:
  - use LINE_MAX to replace BUFSIZ, and use snprintf to replace sprintf.
 v4:
  - fix some comments basd on Stephen
  - add stdint.h include
  - add Acked-by Morten Brørup <mb@smartsharesystems.com>
 v3:
  - add RTE_POWER_xxx prefix for some macro in header
  - add the check for lcore_id with rte_lcore_is_enabled
 v2:
  - use PM QoS on CPU wide to replace the one on system wide


Huisong Li (3):
  power: introduce PM QoS API on CPU wide
  examples/l3fwd-power: fix data overflow when parse command line
  examples/l3fwd-power: add PM QoS configuration

 doc/guides/prog_guide/power_man.rst           |  19 +++
 doc/guides/rel_notes/release_24_11.rst        |   5 +
 .../sample_app_ug/l3_forward_power_man.rst    |   5 +-
 examples/l3fwd-power/main.c                   |  96 +++++++++++---
 lib/power/meson.build                         |   2 +
 lib/power/rte_power_qos.c                     | 123 ++++++++++++++++++
 lib/power/rte_power_qos.h                     |  73 +++++++++++
 lib/power/version.map                         |   4 +
 8 files changed, 306 insertions(+), 21 deletions(-)
 create mode 100644 lib/power/rte_power_qos.c
 create mode 100644 lib/power/rte_power_qos.h

-- 
2.22.0


  parent reply	other threads:[~2024-10-29 13:39 UTC|newest]

Thread overview: 125+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-03-20 10:55 [PATCH 0/2] " Huisong Li
2024-03-20 10:55 ` [PATCH 1/2] power: " Huisong Li
2024-03-20 10:55 ` [PATCH 2/2] examples/l3fwd-power: add PM QoS request configuration Huisong Li
2024-03-20 14:05 ` [PATCH 0/2] introduce PM QoS interface Morten Brørup
2024-03-21  3:04   ` lihuisong (C)
2024-03-21 13:30     ` Morten Brørup
2024-03-22  8:54       ` lihuisong (C)
2024-03-22 12:35         ` Morten Brørup
2024-03-26  2:11           ` lihuisong (C)
2024-03-26  8:27             ` Morten Brørup
2024-03-26 12:15               ` lihuisong (C)
2024-03-26 12:46                 ` Morten Brørup
2024-03-29  1:59                   ` lihuisong (C)
2024-03-22 17:55         ` Tyler Retzlaff
2024-03-26  2:20           ` lihuisong (C)
2024-03-26 16:04             ` Tyler Retzlaff
2024-06-13 11:20 ` [PATCH v2 0/2] power: " Huisong Li
2024-06-13 11:20   ` [PATCH v2 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-06-14  8:04     ` Morten Brørup
2024-06-18 12:19       ` lihuisong (C)
2024-06-18 12:53         ` Morten Brørup
2024-06-13 11:20   ` [PATCH v2 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-06-19  6:31 ` [PATCH v3 0/2] power: introduce PM QoS interface Huisong Li
2024-06-19  6:31   ` [PATCH v3 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-06-19 14:56     ` Stephen Hemminger
2024-06-20  2:22       ` lihuisong (C)
2024-06-19 15:32     ` Thomas Monjalon
2024-06-20  2:32       ` lihuisong (C)
2024-06-19  6:31   ` [PATCH v3 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-06-19 14:54     ` Stephen Hemminger
2024-06-20  2:24       ` lihuisong (C)
2024-06-19  6:59   ` [PATCH v3 0/2] power: introduce PM QoS interface Morten Brørup
2024-06-27  6:00 ` [PATCH v4 " Huisong Li
2024-06-27  6:00   ` [PATCH v4 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-06-27 15:06     ` Stephen Hemminger
2024-06-28  4:07       ` lihuisong (C)
2024-06-27  6:00   ` [PATCH v4 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-07-02  3:50 ` [PATCH v5 0/2] power: introduce PM QoS interface Huisong Li
2024-07-02  3:50   ` [PATCH v5 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-07-03  1:32     ` zhoumin
2024-07-03  2:52       ` lihuisong (C)
2024-07-02  3:50   ` [PATCH v5 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-07-09  2:29 ` [PATCH v6 0/2] power: introduce PM QoS interface Huisong Li
2024-07-09  2:29   ` [PATCH v6 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-07-09  2:29   ` [PATCH v6 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-07-09  3:07     ` Stephen Hemminger
2024-07-09  3:18       ` lihuisong (C)
2024-07-09  6:31 ` [PATCH v7 0/2] power: introduce PM QoS interface Huisong Li
2024-07-09  6:31   ` [PATCH v7 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-07-09  6:31   ` [PATCH v7 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-07-09  7:25 ` [PATCH v8 0/2] power: introduce PM QoS interface Huisong Li
2024-07-09  7:25   ` [PATCH v8 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-07-09  7:25   ` [PATCH v8 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-08-09  9:50 ` [PATCH v9 0/2] power: introduce PM QoS interface Huisong Li
2024-08-09  9:50   ` [PATCH v9 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-09-10  2:00     ` fengchengwen
2024-09-10  9:32       ` lihuisong (C)
2024-09-12  1:14         ` fengchengwen
2024-08-09  9:50   ` [PATCH v9 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-09-10  2:26     ` fengchengwen
2024-09-10 12:07       ` lihuisong (C)
2024-09-12  1:15         ` fengchengwen
2024-09-12  2:38 ` [PATCH v10 0/2] power: introduce PM QoS interface Huisong Li
2024-09-12  2:38   ` [PATCH v10 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-10-13  1:10     ` Stephen Hemminger
2024-10-14 12:19       ` lihuisong (C)
2024-10-15  9:41         ` lihuisong (C)
2024-10-15 15:45           ` Stephen Hemminger
2024-10-17  2:11             ` lihuisong (C)
2024-10-17  3:20               ` Stephen Hemminger
2024-10-17  8:37                 ` lihuisong (C)
2024-10-22  3:10             ` lihuisong (C)
2024-10-14  8:29     ` Konstantin Ananyev
2024-10-15  7:47       ` lihuisong (C)
2024-09-12  2:38   ` [PATCH v10 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-10-14  8:24     ` Konstantin Ananyev
2024-10-14  8:46       ` Konstantin Ananyev
2024-10-15  7:32       ` lihuisong (C)
2024-10-16  0:24         ` Konstantin Ananyev
2024-10-17  2:25           ` lihuisong (C)
2024-10-17 11:14             ` Konstantin Ananyev
2024-09-12  3:07   ` [PATCH v10 0/2] power: introduce PM QoS interface fengchengwen
2024-10-12  2:07     ` lihuisong (C)
2024-10-14 15:27   ` Stephen Hemminger
2024-10-15  9:30     ` lihuisong (C)
2024-10-21 11:42 ` [PATCH v11 " Huisong Li
2024-10-21 11:42   ` [PATCH v11 1/2] power: introduce PM QoS API on CPU wide Huisong Li
2024-10-22  9:08     ` Konstantin Ananyev
2024-10-22  9:41       ` lihuisong (C)
2024-10-21 11:42   ` [PATCH v11 2/2] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-10-22  9:10     ` Konstantin Ananyev
2024-10-22  9:44       ` lihuisong (C)
2024-10-22 12:15         ` Konstantin Ananyev
2024-10-23  6:27       ` lihuisong (C)
2024-10-23  4:09 ` [PATCH v12 0/3] power: introduce PM QoS interface Huisong Li
2024-10-23  4:09   ` [PATCH v12 1/3] power: introduce PM QoS API on CPU wide Huisong Li
2024-10-23  4:09   ` [PATCH v12 2/3] examples/l3fwd-power: fix data overflow when parse command line Huisong Li
2024-10-24 16:34     ` Konstantin Ananyev
2024-10-23  4:09   ` [PATCH v12 3/3] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-10-24 16:44     ` Konstantin Ananyev
2024-10-25  3:35       ` lihuisong (C)
2024-10-25  9:18 ` [PATCH v13 0/3] power: introduce PM QoS interface Huisong Li
2024-10-25  9:18   ` [PATCH v13 1/3] power: introduce PM QoS API on CPU wide Huisong Li
2024-10-25 12:08     ` Tummala, Sivaprasad
2024-10-25  9:18   ` [PATCH v13 2/3] examples/l3fwd-power: fix data overflow when parse command line Huisong Li
2024-10-25 11:27     ` fengchengwen
2024-10-29  5:48     ` Tummala, Sivaprasad
2024-10-25  9:18   ` [PATCH v13 3/3] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-10-29 13:28 ` Huisong Li [this message]
2024-10-29 13:28   ` [PATCH v14 1/3] power: introduce PM QoS API on CPU wide Huisong Li
2024-10-29 13:28   ` [PATCH v14 2/3] examples/l3fwd-power: fix data overflow when parse command line Huisong Li
2024-10-29 13:28   ` [PATCH v14 3/3] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-10-29 13:45     ` Konstantin Ananyev
2024-11-04  9:13   ` [PATCH v14 0/3] power: introduce PM QoS interface lihuisong (C)
2024-11-11  2:25 ` [PATCH v15 " Huisong Li
2024-11-11  2:25   ` [PATCH v15 1/3] power: introduce PM QoS API on CPU wide Huisong Li
2024-11-11 10:18     ` Thomas Monjalon
2024-11-11 12:47       ` lihuisong (C)
2024-11-11  2:25   ` [PATCH v15 2/3] examples/l3fwd-power: fix data overflow when parse command line Huisong Li
2024-11-11  2:25   ` [PATCH v15 3/3] examples/l3fwd-power: add PM QoS configuration Huisong Li
2024-11-11 10:29   ` [PATCH v15 0/3] power: introduce PM QoS interface Thomas Monjalon
2024-11-11  9:14 ` [RESEND PATCH " Huisong Li
2024-11-11  9:14   ` [RESEND PATCH v15 1/3] power: introduce PM QoS API on CPU wide Huisong Li
2024-11-11  9:14   ` [RESEND PATCH v15 2/3] examples/l3fwd-power: fix data overflow when parse command line Huisong Li
2024-11-11  9:14   ` [RESEND PATCH v15 3/3] examples/l3fwd-power: add PM QoS configuration Huisong Li

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