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GET /api/patches/110558/?format=api
{ "id": 110558, "url": "http://patches.dpdk.org/api/patches/110558/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/patch/20220502072414.4643-1-pbhagavatula@marvell.com/", "project": { "id": 1, "url": "http://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": "<20220502072414.4643-1-pbhagavatula@marvell.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20220502072414.4643-1-pbhagavatula@marvell.com", "date": "2022-05-02T07:24:14", "name": "doc: update Linux core isolation guide", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "fd834e7a9ff43b366f4ad29a1df23bbf6a0e7be4", "submitter": { "id": 1183, "url": "http://patches.dpdk.org/api/people/1183/?format=api", "name": "Pavan Nikhilesh Bhagavatula", "email": "pbhagavatula@marvell.com" }, "delegate": { "id": 1, "url": "http://patches.dpdk.org/api/users/1/?format=api", "username": "tmonjalo", "first_name": "Thomas", "last_name": "Monjalon", "email": "thomas@monjalon.net" }, "mbox": "http://patches.dpdk.org/project/dpdk/patch/20220502072414.4643-1-pbhagavatula@marvell.com/mbox/", "series": [ { "id": 22754, "url": "http://patches.dpdk.org/api/series/22754/?format=api", "web_url": "http://patches.dpdk.org/project/dpdk/list/?series=22754", "date": "2022-05-02T07:24:14", "name": "doc: update Linux core isolation guide", "version": 1, "mbox": "http://patches.dpdk.org/series/22754/mbox/" } ], "comments": "http://patches.dpdk.org/api/patches/110558/comments/", "check": "success", "checks": "http://patches.dpdk.org/api/patches/110558/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 6B010A0093;\n\tMon, 2 May 2022 09:24:31 +0200 (CEST)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 11BB740F35;\n\tMon, 2 May 2022 09:24:31 +0200 (CEST)", "from mx0b-0016f401.pphosted.com (mx0b-0016f401.pphosted.com\n [67.231.156.173])\n by mails.dpdk.org (Postfix) with ESMTP id 2E69140E28\n for <dev@dpdk.org>; Mon, 2 May 2022 09:24:29 +0200 (CEST)", "from pps.filterd (m0045851.ppops.net [127.0.0.1])\n by mx0b-0016f401.pphosted.com (8.17.1.5/8.17.1.5) with ESMTP id\n 2423sKB3007259\n for <dev@dpdk.org>; Mon, 2 May 2022 00:24:28 -0700", "from dc5-exch01.marvell.com ([199.233.59.181])\n by mx0b-0016f401.pphosted.com (PPS) with ESMTPS id 3fs4mkmp43-1\n (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT)\n for <dev@dpdk.org>; Mon, 02 May 2022 00:24:28 -0700", "from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH01.marvell.com\n (10.69.176.38) with Microsoft SMTP Server (TLS) id 15.0.1497.2;\n Mon, 2 May 2022 00:24:20 -0700", "from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com\n (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.2 via Frontend\n Transport; Mon, 2 May 2022 00:24:20 -0700", "from MININT-80QBFE8.corp.innovium.com (unknown [10.193.69.50])\n by maili.marvell.com (Postfix) with ESMTP id E46CC3F7083;\n Mon, 2 May 2022 00:24:18 -0700 (PDT)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com;\n h=from : to : cc :\n subject : date : message-id : mime-version : content-transfer-encoding :\n content-type; s=pfpt0220; bh=3kLUPjfqDgXasDratIuwIYSfex0KkChiHRD2j/RVrqY=;\n b=ZRh2My93+/stVLgDHmcUtSpKxwzAKcwSGPkBjdXVn7a2JjQm6hMA+mF0vcRVS2TzhY74\n aEIlNz5m2LtYyr6ibPwnflGxt/aH1fiYOt3irAmhtl/Ufa5FyqBsvV5dStRqJLWUcE3d\n jzaU7AoPuHMDJsOSK5AEUylQVjFSE7xfNLvyAw1cgkkHAbABPHX6Mh9jWH1B3cxLFy4g\n tFL12tkDYW1ILXDZzDhKHrKeKqgDnp0O8hPGXb5ogfSF+QrKgyf3erzAN4D+hNUePPQZ\n mErBO2kmv0FPVi+NoWZNDzGCxy0oV+EKoqyBRUvdrqy+c2DiiRH2uvI07f3Jxu0vX2/W 8A==", "From": "Pavan Nikhilesh <pbhagavatula@marvell.com>", "To": "<jerinj@marvell.com>", "CC": "<dev@dpdk.org>, Pavan Nikhilesh <pbhagavatula@marvell.com>", "Subject": "[PATCH] doc: update Linux core isolation guide", "Date": "Mon, 2 May 2022 12:54:14 +0530", "Message-ID": "<20220502072414.4643-1-pbhagavatula@marvell.com>", "X-Mailer": "git-send-email 2.25.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Content-Type": "text/plain", "X-Proofpoint-GUID": "4PQouuwFfNoyqo4qdtS8_mATRQCvkiNl", "X-Proofpoint-ORIG-GUID": "4PQouuwFfNoyqo4qdtS8_mATRQCvkiNl", "X-Proofpoint-Virus-Version": "vendor=baseguard\n engine=ICAP:2.0.205,Aquarius:18.0.858,Hydra:6.0.486,FMLib:17.11.64.514\n definitions=2022-05-02_02,2022-04-28_01,2022-02-23_01", "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": "Update Linux core isolation guide to include isolation from\ntimers, rcu processing and IRQs.\n\nSigned-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>\n---\n doc/guides/linux_gsg/enable_func.rst | 10 +++++-----\n 1 file changed, 5 insertions(+), 5 deletions(-)", "diff": "diff --git a/doc/guides/linux_gsg/enable_func.rst b/doc/guides/linux_gsg/enable_func.rst\nindex 1df3ab0255..f567c713e6 100644\n--- a/doc/guides/linux_gsg/enable_func.rst\n+++ b/doc/guides/linux_gsg/enable_func.rst\n@@ -90,16 +90,16 @@ Using Linux Core Isolation to Reduce Context Switches\n -----------------------------------------------------\n \n While the threads used by a DPDK application are pinned to logical cores on the system,\n-it is possible for the Linux scheduler to run other tasks on those cores also.\n-To help prevent additional workloads from running on those cores,\n-it is possible to use the ``isolcpus`` Linux kernel parameter to isolate them from the general Linux scheduler.\n+it is possible for the Linux scheduler to run other tasks on those cores.\n+To help prevent additional workloads, timers, rcu processing and IRQs from running on those cores, it is possible to use\n+the Linux kernel parameters ``isolcpus``, ``nohz_full``, ``irqaffinity`` to isolate them from the general Linux scheduler tasks.\n \n-For example, if DPDK applications are to run on logical cores 2, 4 and 6,\n+For example, if a given CPU has 0-7 cores and DPDK applications are to run on logical cores 2, 4 and 6,\n the following should be added to the kernel parameter list:\n \n .. code-block:: console\n \n- isolcpus=2,4,6\n+ isolcpus=2,4,6 nohz_full=2,4,6 irqaffinity=0,1,3,5,7\n \n .. _High_Precision_Event_Timer:\n \n", "prefixes": [] }