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GET /api/patches/126756/?format=api
{ "id": 126756, "url": "http://patches.dpdk.org/api/patches/126756/?format=api", "web_url": "http://patches.dpdk.org/project/dts/patch/20230508093041.656981-2-tadhg.kearney@intel.com/", "project": { "id": 3, "url": "http://patches.dpdk.org/api/projects/3/?format=api", "name": "DTS", "link_name": "dts", "list_id": "dts.dpdk.org", "list_email": "dts@dpdk.org", "web_url": "", "scm_url": "git://dpdk.org/tools/dts", "webscm_url": "http://git.dpdk.org/tools/dts/", "list_archive_url": "https://inbox.dpdk.org/dts", "list_archive_url_format": "https://inbox.dpdk.org/dts/{}", "commit_url_format": "" }, "msgid": "<20230508093041.656981-2-tadhg.kearney@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dts/20230508093041.656981-2-tadhg.kearney@intel.com", "date": "2023-05-08T09:30:40", "name": "[v2,1/2] test_plan/power_empty_poll: remove power_empty_poll test_plan", "commit_ref": null, "pull_url": null, "state": "accepted", "archived": false, "hash": "0e92436e2a0236edef10a93dd0b860fa2ccf450b", "submitter": { "id": 2533, "url": "http://patches.dpdk.org/api/people/2533/?format=api", "name": "Tadhg Kearney", "email": "tadhg.kearney@intel.com" }, "delegate": null, "mbox": "http://patches.dpdk.org/project/dts/patch/20230508093041.656981-2-tadhg.kearney@intel.com/mbox/", "series": [ { "id": 27953, "url": "http://patches.dpdk.org/api/series/27953/?format=api", "web_url": "http://patches.dpdk.org/project/dts/list/?series=27953", "date": "2023-05-08T09:30:39", "name": "remove power_empty_poll test_plan and conf", "version": 2, "mbox": "http://patches.dpdk.org/series/27953/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/126756/comments/", "check": "pending", "checks": "http://patches.dpdk.org/api/patches/126756/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dts-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 59E8D42A97;\n\tMon, 8 May 2023 11:30:48 +0200 (CEST)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 57105411F3;\n\tMon, 8 May 2023 11:30:48 +0200 (CEST)", "from mga04.intel.com (mga04.intel.com [192.55.52.120])\n by mails.dpdk.org (Postfix) with ESMTP id 6DA1840685\n for <dts@dpdk.org>; Mon, 8 May 2023 11:30:46 +0200 (CEST)", "from orsmga005.jf.intel.com ([10.7.209.41])\n by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 08 May 2023 02:30:45 -0700", "from silpixa00401183.ir.intel.com ([10.55.129.127])\n by orsmga005.jf.intel.com with ESMTP; 08 May 2023 02:30:44 -0700" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple;\n d=intel.com; i=@intel.com; q=dns/txt; s=Intel;\n t=1683538246; x=1715074246;\n h=from:to:cc:subject:date:message-id:in-reply-to:\n references:mime-version:content-transfer-encoding;\n bh=ylrYSkgBZUnWsk4I/6rz5iuP0ftFkZq6WAXH7Zd459I=;\n b=YiYzWw1L+5MCjS9C1yAK/EatfLxcRePFrSaArdHAI6fCqXFyGwtudR0n\n vmdpXw3Q8vS+6zhZA3w+ihhMf0xqoZZ9nZMh2+FIqvXQqkGvLMEZql7a2\n OsIfFfrmmpcSO4WwKAvntYbCSj/2PFWqKgheekHi1x4agghJtcS0ImB77\n gzbLrIyhfyrt0hMVSDhX4IlSh92UPEz1k8ZNSii8aqUFUWzv5U0mdMEzg\n Y5KIkfOYhPOfZ6+1FzfigOSe2yPFhaROISFEPMeg1BTWYB7gF1xk4T7xN\n kAn2Y7HD0WILgEeXlH+47BH5hNsnDOckrA9Y1w6Y7g6fbnp/Iegqsf2N4 w==;", "X-IronPort-AV": [ "E=McAfee;i=\"6600,9927,10703\"; a=\"348426536\"", "E=Sophos;i=\"5.99,258,1677571200\"; d=\"scan'208\";a=\"348426536\"", "E=McAfee;i=\"6600,9927,10703\"; a=\"872731358\"", "E=Sophos;i=\"5.99,258,1677571200\"; d=\"scan'208\";a=\"872731358\"" ], "X-ExtLoop1": "1", "From": "Tadhg Kearney <tadhg.kearney@intel.com>", "To": "dts@dpdk.org", "Cc": "reshma.pattan@intel.com, karen.kelly@intel.com,\n Tadhg Kearney <tadhg.kearney@intel.com>", "Subject": "[dts][PATCH v2 1/2] test_plan/power_empty_poll: remove\n power_empty_poll test_plan", "Date": "Mon, 8 May 2023 09:30:40 +0000", "Message-Id": "<20230508093041.656981-2-tadhg.kearney@intel.com>", "X-Mailer": "git-send-email 2.34.1", "In-Reply-To": "<20230508093041.656981-1-tadhg.kearney@intel.com>", "References": "<20230508093041.656981-1-tadhg.kearney@intel.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=y", "Content-Transfer-Encoding": "8bit", "X-BeenThere": "dts@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "test suite reviews and discussions <dts.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dts>,\n <mailto:dts-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dts/>", "List-Post": "<mailto:dts@dpdk.org>", "List-Help": "<mailto:dts-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dts>,\n <mailto:dts-request@dpdk.org?subject=subscribe>", "Errors-To": "dts-bounces@dpdk.org" }, "content": "Removing test_plan index and file, power_empty_poll test has already been\nremoved.\n\nSigned-off-by: Tadhg Kearney <tadhg.kearney@intel.com>\n---\n test_plans/index.rst | 1 -\n test_plans/power_empty_poll_test_plan.rst | 115 ----------------------\n 2 files changed, 116 deletions(-)\n delete mode 100644 test_plans/power_empty_poll_test_plan.rst", "diff": "diff --git a/test_plans/index.rst b/test_plans/index.rst\nindex a0c056cd..5f81951f 100644\n--- a/test_plans/index.rst\n+++ b/test_plans/index.rst\n@@ -211,7 +211,6 @@ The following are the test plans for the DPDK DTS automated test system.\n vm_pw_mgmt_policy_test_plan\n power_bidirection_channel_test_plan\n power_branch_ratio_test_plan\n- power_empty_poll_test_plan\n power_pbf_test_plan\n power_pmd_test_plan\n power_pstate_test_plan\ndiff --git a/test_plans/power_empty_poll_test_plan.rst b/test_plans/power_empty_poll_test_plan.rst\ndeleted file mode 100644\nindex 70784092..00000000\n--- a/test_plans/power_empty_poll_test_plan.rst\n+++ /dev/null\n@@ -1,115 +0,0 @@\n-.. SPDX-License-Identifier: BSD-3-Clause\n- Copyright(c) 2010-2019 Intel Corporation\n-\n-=========================\n-Power Lib Empty Poll Test\n-=========================\n-\n-Inband Policy Control\n-=====================\n-\n-For packet processing workloads such as DPDK polling is continuous. This means\n-CPU cores always show 100% busy independent of how much work those cores are\n-doing. It is critical to accurately determine how busy a core is hugely\n-important for the following reasons:\n-\n- * No indication of overload conditions\n-\n- * User do not know how much real load is on a system meaning resulted in\n- wasted energy as no power management is utilized\n-\n-Tried and failed schemes include calculating the cycles required from the load\n-on the core, in other words the busyness. For example, how many cycles it costs\n-to handle each packet and determining the frequency cost per core. Due to the\n-varying nature of traffic, types of frames and cost in cycles to process, this\n-mechanism becomes complex quickly where a simple scheme is required to solve\n-the problems.\n-\n-For all polling mechanism, the proposed solution focus on how many times empty\n-poll executed instead of calculating how many cycles it cost to handle each\n-packet. The less empty poll number means current core is busy with processing\n-workload, therefore, the higher frequency is needed. The high empty poll\n-number indicate current core has lots spare time, therefore, we can lower the\n-frequency.\n-\n-2.1 Power state definition:\n-\n-LOW: the frequency is used for purge mode.\n-\n-MED: the frequency is used to process modest traffic workload.\n-\n-HIGH: the frequency is used to process busy traffic workload.\n-\n-2.2 There are two phases to establish the power management system:\n-\n-a.Initialization/Training phase. There is no traffic pass-through, the system\n-will test average empty poll numbers with LOW/MED/HIGH power state. Those\n-average empty poll numbers will be the baseline for the normal phase. The\n-system will collect all core's counter every 100ms. The Training phase will\n-take 5 seconds.\n-\n-b.Normal phase. When the real traffic pass-though, the system will compare\n-run-time empty poll moving average value with base line then make decision to\n-move to HIGH power state of MED power state. The system will collect all\n-core's counter every 10ms.\n-\n-``training_flag`` : optional, enable/disable training mode. Default value is 0.\n- If the training_flag is set as 1(true), then the application will start in\n- training mode and print out the trained threshold values. If the training_flag\n- is set as 0(false), the application will start in normal mode, and will use\n- either the default thresholds or those supplied on the command line. The\n- trained threshold values are specific to the user’s system, may give a better\n- power profile when compared to the default threshold values.\n-\n-``med_threshold`` : optional, sets the empty poll threshold of a modestly busy\n-system state. If this is not supplied, the application will apply the default\n-value of 350000.\n-\n-``high_threshold`` : optional, sets the empty poll threshold of a busy system\n-state. If this is not supplied, the application will apply the default value of\n-580000.\n-\n-\n-Preparation Work for Settings\n-=============================\n-BIOS setting::\n-\n- 1. Turn on Speedstep option in BIOS\n- 2. Turn on Turbo in BIOS\n- 3. Turn off Hyper Threading\n-\n-Linux setting::\n-\n- 1. Use intel_pstate driver for CPU frequency control\n- 2. modprobe msr\n-\n-sys_min=/sys/devices/system/cpu/cpu{}/cpufreq/cpuinfo_min_freq\n-sys_max=/sys/devices/system/cpu/cpu{}/cpufreq/cpuinfo_max_freq\n-no_turbo_max=$(rdmsr -p 1 0x0CE -f 15:8 -d)00000\n-\n-cur_min=/sys/devices/system/cpu/cpu{}/cpufreq/scaling_min_freq\n-cur_max=/sys/devices/system/cpu/cpu{}/cpufreq/scaling_max_freq\n-\n-\n-Test Case1 : Basic Training mode test based on one NIC with l3fwd-power\n-=======================================================================\n-Step 1. Bind One NIC to DPDK driver, launch l3fwd-power with empty-poll enabled\n-\n- ./<build_target>/examples/dpdk-l3fwd-power -l 1-2 -n 4 -- -p 0x1 -P --config=\"(0,0,2)\" --empty-poll=\"1,0,0\" -l 10 -m 6 -h 1\n-\n-Step 2. Check the log also when changing the inject packet rate as following:\n-\n- Injected Rate(1024B, dst_ip=1.1.1.1): 10G -> 0.1G -> 10G -> 0.1G -> 10G ->\n- 0.1G The frequency will be set to MED when we inject 0.1G and return to HGH\n- when inject 10G Rate, check the frequency of the forwarding core(core 2)\n- When traffic is 10G: cur_min=cur_max=no_turbo_max\n- When traffic is 0.1G: cur_min=cur_max=[no_turbo_max-500000]\n-\n-\n-Test Case2: No-Training mode test based on one NIC with l3fwd-power\n-===================================================================\n-Step 1. Bind One NIC to DPDK driver, launch l3fwd-power with empty-poll enabled\n-\n- ./<build_target>/examples/dpdk-l3fwd-power -l 1-2 -n 4 -- -p 0x1 -P --config=\"(0,0,2)\" --empty-poll=\"0,350000,500000\" -l 10 -m 6 -h 1\n-\n-Step 2. Check no training steps are executed in sample's launch log.\n", "prefixes": [ "v2", "1/2" ] }