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GET /api/patches/104677/?format=api
{ "id": 104677, "url": "https://patches.dpdk.org/api/patches/104677/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/20211124165300.31165-1-david.hunt@intel.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20211124165300.31165-1-david.hunt@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20211124165300.31165-1-david.hunt@intel.com", "date": "2021-11-24T16:53:00", "name": "doc/power: add info on scale mode reaction time", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": true, "hash": "76a56c3a5a94c0dd6e90085fc6561632546c4f3a", "submitter": { "id": 342, "url": "https://patches.dpdk.org/api/people/342/?format=api", "name": "Hunt, David", "email": "david.hunt@intel.com" }, "delegate": { "id": 1, "url": "https://patches.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "https://patches.dpdk.org/project/dpdk/patch/20211124165300.31165-1-david.hunt@intel.com/mbox/", "series": [ { "id": 20758, "url": "https://patches.dpdk.org/api/series/20758/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=20758", "date": "2021-11-24T16:53:00", "name": "doc/power: add info on scale mode reaction time", "version": 1, "mbox": "https://patches.dpdk.org/series/20758/mbox/" } ], "comments": "https://patches.dpdk.org/api/patches/104677/comments/", "check": "success", "checks": "https://patches.dpdk.org/api/patches/104677/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 64C34A0C52;\n\tWed, 24 Nov 2021 18:10:05 +0100 (CET)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 0F1F840696;\n\tWed, 24 Nov 2021 18:10:05 +0100 (CET)", "from mga03.intel.com (mga03.intel.com [134.134.136.65])\n by mails.dpdk.org (Postfix) with ESMTP id 19B4740688\n for <dev@dpdk.org>; Wed, 24 Nov 2021 18:10:02 +0100 (CET)", "from fmsmga001.fm.intel.com ([10.253.24.23])\n by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 24 Nov 2021 08:53:14 -0800", "from silpixa00399952.ir.intel.com ([10.55.129.13])\n by fmsmga001.fm.intel.com with ESMTP; 24 Nov 2021 08:53:12 -0800" ], "X-IronPort-AV": [ "E=McAfee;i=\"6200,9189,10178\"; a=\"235271325\"", "E=Sophos;i=\"5.87,260,1631602800\"; d=\"scan'208\";a=\"235271325\"", "E=Sophos;i=\"5.87,260,1631602800\"; d=\"scan'208\";a=\"650455124\"" ], "X-ExtLoop1": "1", "From": "David Hunt <david.hunt@intel.com>", "To": "dev@dpdk.org", "Cc": "david.hunt@intel.com", "Subject": "[PATCH] doc/power: add info on scale mode reaction time", "Date": "Wed, 24 Nov 2021 16:53:00 +0000", "Message-Id": "<20211124165300.31165-1-david.hunt@intel.com>", "X-Mailer": "git-send-email 2.17.1", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org" }, "content": "When using PMD Power Management, scale mode reacts slower than\nmonitor mode and pause mode. Add note in user guide to this\neffect.\n\nSigned-off-by: David Hunt <david.hunt@intel.com>\n---\n doc/guides/prog_guide/power_man.rst | 4 +++-\n doc/guides/sample_app_ug/l3_forward_power_man.rst | 5 +++--\n 2 files changed, 6 insertions(+), 3 deletions(-)", "diff": "diff --git a/doc/guides/prog_guide/power_man.rst b/doc/guides/prog_guide/power_man.rst\nindex e387d7811e..66592cf22f 100644\n--- a/doc/guides/prog_guide/power_man.rst\n+++ b/doc/guides/prog_guide/power_man.rst\n@@ -216,7 +216,9 @@ power saving whenever empty poll count reaches a certain number.\n \n * Frequency scaling\n This power saving scheme will use ``librte_power`` library functionality to\n- scale the core frequency up/down depending on traffic volume.\n+ scale the core frequency up/down depending on traffic volume. The reaction\n+ time of the frequency scaling mode is longer than the pause and monitor\n+ mode.\n \n The \"monitor\" mode is only supported in the following configurations and scenarios:\n \ndiff --git a/doc/guides/sample_app_ug/l3_forward_power_man.rst b/doc/guides/sample_app_ug/l3_forward_power_man.rst\nindex 8817eaadbf..84b014fab5 100644\n--- a/doc/guides/sample_app_ug/l3_forward_power_man.rst\n+++ b/doc/guides/sample_app_ug/l3_forward_power_man.rst\n@@ -345,8 +345,9 @@ and has three available power management schemes:\n to avoid busy looping when there is no traffic.\n \n ``scale``\n- This will use frequency scaling routines\n- available in the ``librte_power`` library.\n+ This will use frequency scaling routines available in\n+ the ``librte_power`` library. The reaction time of the\n+ scale mode is longer than the pause and monitor mode.\n \n See :doc:`Power Management<../prog_guide/power_man>` chapter\n in the DPDK Programmer's Guide for more details on PMD power management.\n", "prefixes": [] }