From owner-freebsd-net@freebsd.org Wed Feb 19 00:05:30 2020 Return-Path: Delivered-To: freebsd-net@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id BE814249C81 for ; Wed, 19 Feb 2020 00:05:30 +0000 (UTC) (envelope-from rudy@monkeybrains.net) Received: from sfo.monkeybrains.net (sfo.monkeybrains.net [208.69.40.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "*.monkeybrains.net", Issuer "AlphaSSL CA - SHA256 - G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 48MdK54DCdz424b for ; Wed, 19 Feb 2020 00:05:29 +0000 (UTC) (envelope-from rudy@monkeybrains.net) Received: from [10.2.86.111] (public.monkeybrains.net [208.69.41.107] (may be forged)) (authenticated bits=0) by sfo.monkeybrains.net (8.15.2/8.15.2) with ESMTPSA id 01J05ReP028204 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO) for ; Tue, 18 Feb 2020 16:05:27 -0800 (PST) (envelope-from rudy@monkeybrains.net) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=monkeybrains.net; s=dkim; t=1582070727; bh=2KbjWtQuu+I551WZs+gvmdI+/4mJ1l39kVB6fEq5BeY=; h=Subject:To:References:From:Date:In-Reply-To; b=nuHat7vcOeIN8ZmncLgybM/1aQhh+iyYmywZzqjtw57671Sg+ilgIl++fw9lM9byf 3ey+TsIlHT4dVsgJmntDWHdLN4am31tgS0YSetb5YULXNeh5MtkHV36ZyKTpXY3oGh q0i/iOBi9mu/G41+LLMdcEOrrVXsY4M7Yuauv4NU= X-Authentication-Warning: mail.monkeybrains.net: Host public.monkeybrains.net [208.69.41.107] (may be forged) claimed to be [10.2.86.111] Subject: Re: Issue with BGP router / high interrupt / Chelsio / FreeBSD 12.1 To: freebsd-net@freebsd.org References: <1aa78c6e-e640-623c-73d3-473df132eb72@monkeybrains.net> <317422ba-e052-aecf-aed3-fbb1325220d9@monkeybrains.net> From: Rudy Rucker Message-ID: <2f56af0b-7872-0a2c-0d30-b4ca1c15d517@monkeybrains.net> Date: Tue, 18 Feb 2020 16:05:27 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 MIME-Version: 1.0 In-Reply-To: <317422ba-e052-aecf-aed3-fbb1325220d9@monkeybrains.net> Content-Language: en-US X-Virus-Scanned: clamav-milter 0.101.4 at mail.monkeybrains.net X-Virus-Status: Clean X-Rspamd-Queue-Id: 48MdK54DCdz424b X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; dkim=pass header.d=monkeybrains.net header.s=dkim header.b=nuHat7vc; dmarc=pass (policy=none) header.from=monkeybrains.net; spf=pass (mx1.freebsd.org: domain of rudy@monkeybrains.net designates 208.69.40.9 as permitted sender) smtp.mailfrom=rudy@monkeybrains.net X-Spamd-Result: default: False [-6.64 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; R_DKIM_ALLOW(-0.20)[monkeybrains.net:s=dkim]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; DWL_DNSWL_NONE(0.00)[monkeybrains.net.dwl.dnswl.org : 127.0.5.0]; R_SPF_ALLOW(-0.20)[+ptr]; TO_MATCH_ENVRCPT_ALL(0.00)[]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; HAS_XAW(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[freebsd-net@freebsd.org]; RCPT_COUNT_ONE(0.00)[1]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; TO_DN_NONE(0.00)[]; DKIM_TRACE(0.00)[monkeybrains.net:+]; DMARC_POLICY_ALLOW(-0.50)[monkeybrains.net,none]; RCVD_IN_DNSWL_NONE(0.00)[9.40.69.208.list.dnswl.org : 127.0.5.0]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+,1:+,2:~]; IP_SCORE(-3.64)[ip: (-9.42), ipnet: 208.69.40.0/22(-4.80), asn: 32329(-3.90), country: US(-0.05)]; ASN(0.00)[asn:32329, ipnet:208.69.40.0/22, country:US]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2] Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 19 Feb 2020 00:05:30 -0000 On 2/14/20 2:58 PM, BulkMailForRudy wrote: > pmcstat -S inst_retired.any -Tw1 I had time to run pmcstat during a larger TX load on Chelsio T6 card. I'm loosing a hope on using FreeBSD as one of my edge routers outside of 10Gbps ports. *Start (been running for 4 days), cc1: RX 2.3Gbps / 130Mbps* %SAMP IMAGE      FUNCTION             CALLERS  20.4 kernel     sched_idletd         fork_exit  14.1 kernel     cpu_search_highest   cpu_search_highest:11.9 sched_switch:1.3 sched_idletd:0.9   5.5 kernel     cpu_search_lowest    cpu_search_lowest:5.0 sched_pickcpu:0.5   4.6 kernel     eth_tx               drain_ring   3.7 kernel     rn_match             fib4_lookup_nh_basic   2.0 kernel     epoch_enter_preempt  arpresolve   2.0 kernel     mac_ifnet_check_tran ether_output   1.9 kernel     lock_delay           __mtx_lock_sleep   1.7 kernel     service_iq_fl        t4_intr   1.6 kernel     ip_tryforward        ip_input   1.5 kernel     get_scatter_segment  service_iq_fl   1.5 kernel     mac_ifnet_create_mbu ether_nh_input   1.4 kernel     parse_pkt            cxgbe_transmit   1.3 kernel     netisr_dispatch_src  ether_demux:0.7 ether_input:0.6   1.3 kernel     cxgbe_transmit       ether_output_frame   1.2 kernel     _rm_rlock            in_localip   1.2 kernel     mp_ring_enqueue      cxgbe_transmit   1.2 kernel     ether_output         ip_tryforward *5 minutes in sending more traffic out cc1, cc1: RX 2.3Gbps  / TX 1.7Gbps* %SAMP IMAGE      FUNCTION             CALLERS  17.0 kernel     sched_idletd         fork_exit  15.3 kernel     cpu_search_highest   cpu_search_highest:13.0 sched_switch:1.3 sched_idletd:1.0   6.9 kernel     cpu_search_lowest    cpu_search_lowest:6.3 sched_pickcpu:0.6   4.8 kernel     eth_tx               drain_ring   3.7 kernel     rn_match             fib4_lookup_nh_basic   2.7 kernel     lock_delay           __mtx_lock_sleep   2.0 kernel     mac_ifnet_check_tran ether_output   1.9 kernel     epoch_enter_preempt  arpresolve   1.8 kernel     service_iq_fl        t4_intr   1.6 kernel     mac_ifnet_create_mbu ether_nh_input   1.6 kernel     ip_tryforward        ip_input *10 minutes in, attempting to make cc1 referred outbound for whole network (~ 5Gbps), and the box starts dropping packets:* PMC: [inst_retired.any] Samples: 1019841 (100.0%) , 19068 unresolved %SAMP IMAGE      FUNCTION             CALLERS  24.8 kernel     cpu_search_highest   cpu_search_highest:22.7 sched_idletd:1.6   6.2 kernel     lock_delay           __mtx_lock_sleep   6.0 kernel     rn_match             fib4_lookup_nh_basic   5.7 kernel     eth_tx               drain_ring   2.7 kernel     sched_idletd         fork_exit   2.6 kernel     tdq_move             sched_idletd   2.5 kernel     mac_ifnet_check_tran ether_output   2.1 kernel     mac_ifnet_create_mbu ether_nh_input   2.0 kernel     epoch_enter_preempt  arpresolve *Reverting to ~ 150Mbps TX on  cc1* PMC: [inst_retired.any] Samples: 136053 (100.0%) , 2767 unresolved %SAMP IMAGE      FUNCTION             CALLERS  27.1 kernel     sched_idletd         fork_exit  14.1 kernel     cpu_search_highest   cpu_search_highest:11.5 sched_switch:1.6 sched_idletd:0.9   4.4 kernel     cpu_search_lowest    cpu_search_lowest   4.1 kernel     eth_tx               drain_ring   3.4 kernel     rn_match             fib4_lookup_nh_basic   1.8 kernel     epoch_enter_preempt  arpresolve   1.8 kernel     mac_ifnet_check_tran ether_output   1.6 kernel     service_iq_fl        t4_intr   1.4 kernel     ip_tryforward        ip_input   1.4 kernel     get_scatter_segment  service_iq_fl   1.3 kernel     mac_ifnet_create_mbu ether_nh_input   1.3 kernel     sched_switch         mi_switch   1.3 kernel     parse_pkt            cxgbe_transmit   1.2 kernel     _rm_rlock            in_localip