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{ "id": 120287, "url": "https://patches.dpdk.org/api/covers/120287/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/cover/20221129153329.181652-1-rjarry@redhat.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": "<20221129153329.181652-1-rjarry@redhat.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20221129153329.181652-1-rjarry@redhat.com", "date": "2022-11-29T15:33:25", "name": "[v3,0/4] lcore telemetry improvements", "submitter": { "id": 2850, "url": "https://patches.dpdk.org/api/people/2850/?format=api", "name": "Robin Jarry", "email": "rjarry@redhat.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/cover/20221129153329.181652-1-rjarry@redhat.com/mbox/", "series": [ { "id": 25930, "url": "https://patches.dpdk.org/api/series/25930/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=25930", "date": "2022-11-29T15:33:25", "name": "lcore telemetry improvements", "version": 3, "mbox": "https://patches.dpdk.org/series/25930/mbox/" } ], "comments": "https://patches.dpdk.org/api/covers/120287/comments/", "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 E0547A00C3;\n\tTue, 29 Nov 2022 16:33:37 +0100 (CET)", "from mails.dpdk.org (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id D264240691;\n\tTue, 29 Nov 2022 16:33:37 +0100 (CET)", "from us-smtp-delivery-124.mimecast.com\n (us-smtp-delivery-124.mimecast.com [170.10.133.124])\n by mails.dpdk.org (Postfix) with ESMTP id 5D3034067E\n for <dev@dpdk.org>; Tue, 29 Nov 2022 16:33:36 +0100 (CET)", "from mimecast-mx02.redhat.com (mx3-rdu2.redhat.com\n [66.187.233.73]) by relay.mimecast.com with ESMTP with STARTTLS\n (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id\n us-mta-272-Knz-PLptN52mxdc9lcKuqA-1; Tue, 29 Nov 2022 10:33:34 -0500", "from smtp.corp.redhat.com (int-mx05.intmail.prod.int.rdu2.redhat.com\n [10.11.54.5])\n (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits))\n (No client certificate requested)\n by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 698193C1022D\n for <dev@dpdk.org>; Tue, 29 Nov 2022 15:33:34 +0000 (UTC)", "from paul.home (unknown [10.39.208.38])\n by smtp.corp.redhat.com (Postfix) with ESMTP id C14AA17593;\n Tue, 29 Nov 2022 15:33:33 +0000 (UTC)" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com;\n s=mimecast20190719; t=1669736015;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=o4/7U0MHA7Xv7fQhbMHbtoMz6SJWZyR42qE0PMIdg4E=;\n b=TCggpO1FNyVLRQkhQLLCWS8lIzAIh3XLQKc4mm4gzjiKfYGn5RWgWzWpNBhuItIZ4gf8CY\n Zuf2uV5ioMfsD7DaFtGuKKfRzsyLGVytIwJ77ocVl3R5G37CIOLCSMqw+Ncpa8IA0I2zbW\n +lFfXL0ZdC417IUc8xHn4MoZfiikrKw=", "X-MC-Unique": "Knz-PLptN52mxdc9lcKuqA-1", "From": "Robin Jarry <rjarry@redhat.com>", "To": "dev@dpdk.org", "Cc": "Robin Jarry <rjarry@redhat.com>", "Subject": "[PATCH v3 0/4] lcore telemetry improvements", "Date": "Tue, 29 Nov 2022 16:33:25 +0100", "Message-Id": "<20221129153329.181652-1-rjarry@redhat.com>", "In-Reply-To": "<20221123102612.1688865-1-rjarry@redhat.com>", "References": "<20221123102612.1688865-1-rjarry@redhat.com>", "MIME-Version": "1.0", "X-Scanned-By": "MIMEDefang 3.1 on 10.11.54.5", "X-Mimecast-Spam-Score": "0", "X-Mimecast-Originator": "redhat.com", "Content-Type": "text/plain; charset=UTF-8", "Content-Transfer-Encoding": "8bit", "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": "This is a follow up on previous work by Kevin Laatz:\n\nhttp://patches.dpdk.org/project/dpdk/list/?series=24658&state=*\n\nThis series is aimed at allowing DPDK applications to expose their CPU\nusage stats in the DPDK telemetry under /eal/lcore/info. This is a much\nmore basic and naive approach which leaves the cpu cycles accounting\ncompletely up to the application.\n\nFor reference, I have implemented a draft patch in OvS to use\nrte_lcore_register_usage_cb() and report the already available busy\ncycles information.\n\nhttps://github.com/rjarry/ovs/commit/327db12c751be0375fcfed5e44b6065bcfb75c82\n\nChanges since v2:\n\n- Fixed typos in docstrings.\n- Used if (xxx != NULL) instead of if (xxx) test convention.\n- Guarded against an unlikely race if rte_lcore_dump() is called by\n a thread while another one calls rte_lcore_register_usage_cb(NULL).\n- s/utilization/usage/\n- Fixed build on Windows.\n\nChanges since v1:\n\n- The cpuset field in telemetry is now a JSON list of CPU ids.\n- Applications must now report their raw CPU cycles counts. The busyness\n ratio and rate of change is left to external monitoring tools.\n- Renamed show lcores -> dump_lcores in testpmd.\n\nRobin Jarry (4):\n eal: add lcore info in telemetry\n eal: allow applications to report their cpu cycles usage\n testpmd: add dump_lcores command\n testpmd: report lcore usage\n\n app/test-pmd/5tswap.c | 5 +-\n app/test-pmd/cmdline.c | 3 +\n app/test-pmd/csumonly.c | 6 +-\n app/test-pmd/flowgen.c | 2 +-\n app/test-pmd/icmpecho.c | 6 +-\n app/test-pmd/iofwd.c | 5 +-\n app/test-pmd/macfwd.c | 5 +-\n app/test-pmd/macswap.c | 5 +-\n app/test-pmd/noisy_vnf.c | 4 +\n app/test-pmd/rxonly.c | 5 +-\n app/test-pmd/shared_rxq_fwd.c | 5 +-\n app/test-pmd/testpmd.c | 39 ++++++++-\n app/test-pmd/testpmd.h | 14 +++-\n app/test-pmd/txonly.c | 7 +-\n lib/eal/common/eal_common_lcore.c | 131 +++++++++++++++++++++++++++++-\n lib/eal/include/rte_lcore.h | 29 +++++++\n lib/eal/version.map | 1 +\n 17 files changed, 242 insertions(+), 30 deletions(-)" }