From owner-freebsd-stable@freebsd.org Thu Nov 9 20:23:49 2017 Return-Path: Delivered-To: freebsd-stable@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id D4487E5AFD8 for ; Thu, 9 Nov 2017 20:23:49 +0000 (UTC) (envelope-from kudzu@tenebras.com) Received: from mail-qt0-x234.google.com (mail-qt0-x234.google.com [IPv6:2607:f8b0:400d:c0d::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 8C89677151 for ; Thu, 9 Nov 2017 20:23:49 +0000 (UTC) (envelope-from kudzu@tenebras.com) Received: by mail-qt0-x234.google.com with SMTP id f8so9298502qta.5 for ; Thu, 09 Nov 2017 12:23:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=tenebras-com.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=3FBvZ0Wl9BtcsBvEuS59W0QcpO9WfhJ1hXAPGSVcBEA=; b=ChwD1vSsgnp38x/baIRF9ErS9U+8OrMpN+ohKSDdv6fudtebkBw6sMgfPTU2uzavoe zA+LplQ3nX131L2+uetSA3qF94tTLfMveIFu1MaHVTWOWaVLTBhmCgUQZwZrelXteJKe cMcxRCKeXVrj1QCsEYXFIEGxIwWk1FEb2GFQcbytLRcf55CiQFiwlaxoN7ctZ/qglwb4 VVxVXBAOBX9tIPwTX/HXiK0G97UBmjUX6cR98Y0qT1SoPqFwK8Owzo0HqWDPTmLB8wy5 WRgLMcdaQd2FeYkl696cfHTrT5j/to5Dr4X5cb6wjAm2ZOR6gNY3z4ZNB+vWqAl1BRbI /cyg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=3FBvZ0Wl9BtcsBvEuS59W0QcpO9WfhJ1hXAPGSVcBEA=; b=WYIZWPDEwt0qB6yU1d75UM6jNrw7PmhHKt5u7HFxkdukInzTM/HEbK0RqkoqTUAC+s 1G5OJJdWmHs2BjlVQ0P9ZQjjTJ5gq6cqSeBQXBU3clJ+c/XrDfvom8GshSm1xPBOtnw2 OX1wdyf7JYFvyaUw+OsoRj0EVPmVr4GKVBwoUmtbM/pmQV3Uvk/pkHm/nuSAReXoviSr muX+fSVdYYTiCxyN8Kw/1QhUAdVG+Pybsf+d+Ml5iVVZsJRvFAz7YdoU/+Y4Cxvxy6XS rL1zHz9OtzdTVm7Y4rgyk00y9mp+ir200Dy7XSjKi4xEMaKPtnKpE7u0llAJx07KeGmx +v5A== X-Gm-Message-State: AJaThX6xoXc63n1uzhxxi0TVSeHf9ntYmV7PCqcTiyWmVE2HWuMH4SE4 S6S0lzez6hs/KnMJiARFosnoBaDmOkAoVU8JBumGIQ== X-Google-Smtp-Source: AGs4zMaT5GtZcDtVH3bY4o84XU6BQad3lm9pOcQK9jihXQCGyNEBqWzo5PAQli11iDc/xdwZhqgyVMeOZORk6sbOlko= X-Received: by 10.200.9.73 with SMTP id z9mr2788548qth.43.1510259028373; Thu, 09 Nov 2017 12:23:48 -0800 (PST) MIME-Version: 1.0 Received: by 10.237.46.131 with HTTP; Thu, 9 Nov 2017 12:23:47 -0800 (PST) In-Reply-To: <8590fa5d-fd06-90c6-8d3e-34c155423720@FreeBSD.org> References: <8590fa5d-fd06-90c6-8d3e-34c155423720@FreeBSD.org> From: Michael Sierchio Date: Thu, 9 Nov 2017 12:23:47 -0800 Message-ID: Subject: =?UTF-8?Q?Re=3A_Intel_I210_=28igb=29_sometimes_consume_all_CPU_on_no?= =?UTF-8?Q?t=2Dso=2Dbig_traffic_=E2=80=94_need_help=21?= To: lev@freebsd.org Cc: "freebsd-net@freebsd.org" , freebsd-stable Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Content-Filtered-By: Mailman/MimeDel 2.1.23 X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 09 Nov 2017 20:23:49 -0000 Is device polling enabled? - M On Thu, Nov 9, 2017 at 12:17 PM, Lev Serebryakov wrote: > > I still have problems with my E-1220v3 server equipped with Intel I210 > adapter. It can not be loaded more than 100Mbit/s because it is > connection to internet. > > But sometimes four interrupt threads "intr{irqXXX: igb0:que Y}" consume > 100% CPU. Interrupt rate is very modest: > > % vmstat -i > interrupt total rate > ... > irq276: igb0:que 0 851899713 1193 > irq277: igb0:que 1 907338150 1271 > irq278: igb0:que 2 907538207 1271 > irq279: igb0:que 3 768217584 1076 > irq280: igb0:link 2 0 > % > > But CPU consumption is 90-100% per thread: > > PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND > 11 root -92 - 0K 544K CPU2 2 146:22 98.30% intr{irq278: > igb0:que 2} > 11 root -92 - 0K 544K WAIT 0 178:18 81.55% intr{irq276: > igb0:que 0} > 11 root -92 - 0K 544K WAIT 1 135:34 77.77% intr{irq277: > igb0:que 1} > 11 root -92 - 0K 544K CPU3 3 138:57 67.50% intr{irq279: > igb0:que 3} > > procstat -ak looks suspicious: > > % sudo procstat -ak | grep igb0:que > 11 100056 intr irq276: igb0:que 0 vm_page_scan_contig > vm_phys_scan_contig vm_page_reclaim_contig kmem_alloc_contig > mbuf_jumbo_alloc keg_alloc_slab keg_fetch_slab zone_fetch_slab > zone_import zone_alloc_item uma_zalloc_arg m_getjcl igb_refresh_mbufs > igb_rxeof igb_msix_que intr_event_execute_handlers ithread_loop fork_exit > 11 100058 intr irq277: igb0:que 1 mi_switch ithread_loop fork_exit > fork_trampoline > 11 100060 intr irq278: igb0:que 2 mi_switch ithread_loop fork_exit > fork_trampoline > 11 100062 intr irq279: igb0:que 3 mi_switch ithread_loop fork_exit > fork_trampoline > % > > -- > // Lev Serebryakov > > --=20 "Well," Brahma said, "even after ten thousand explanations, a fool is no wiser, but an intelligent person requires only two thousand five hundred." - The Mah=C4=81bh=C4=81rata