From owner-freebsd-hackers@freebsd.org Thu Apr 15 21:44:19 2021 Return-Path: Delivered-To: freebsd-hackers@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 6153E5D98C3 for ; Thu, 15 Apr 2021 21:44:19 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [IPv6:2a01:4f8:c2c:26d8::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4FLtCQ4DC4z4v4N for ; Thu, 15 Apr 2021 21:44:18 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (root@eg.sd.rdtc.ru [62.231.161.221] (may be forged)) by hz.grosbein.net (8.15.2/8.15.2) with ESMTPS id 13FLi8xv068157 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 15 Apr 2021 21:44:09 GMT (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: micchie.gml@gmail.com Received: from [10.58.0.10] (dadvw [10.58.0.10]) by eg.sd.rdtc.ru (8.16.1/8.16.1) with ESMTPS id 13FLi54E081561 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Fri, 16 Apr 2021 04:44:05 +0700 (+07) (envelope-from eugen@grosbein.net) Subject: Re: How to pin an interrupt thread to a specific CPU core? To: Michio Honda , freebsd-hackers@freebsd.org References: From: Eugene Grosbein Message-ID: <8d0866f0-3eed-87cd-d6b6-ea7ed3e06ce4@grosbein.net> Date: Fri, 16 Apr 2021 04:43:55 +0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=3.2 required=5.0 tests=BAYES_00,CTE_8BIT_MISMATCH, LOCAL_FROM,NICE_REPLY_A,RDNS_NONE,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.2 X-Spam-Report: * -2.3 BAYES_00 BODY: Bayes spam probability is 0 to 1% * [score: 0.0000] * 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record * -0.0 SPF_PASS SPF: sender matches SPF record * 1.9 RDNS_NONE Delivered to internal network by a host with no rDNS * 2.6 LOCAL_FROM From my domains * 1.0 CTE_8BIT_MISMATCH Header says 7bits but body disagrees * -0.0 NICE_REPLY_A Looks like a legit reply (A) X-Spam-Level: *** X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on hz.grosbein.net X-Rspamd-Queue-Id: 4FLtCQ4DC4z4v4N X-Spamd-Bar: / Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=fail (mx1.freebsd.org: domain of eugen@grosbein.net does not designate 2a01:4f8:c2c:26d8::2 as permitted sender) smtp.mailfrom=eugen@grosbein.net X-Spamd-Result: default: False [0.08 / 15.00]; TO_DN_SOME(0.00)[]; RCVD_COUNT_THREE(0.00)[3]; NEURAL_HAM_SHORT(-0.87)[-0.873]; RCPT_COUNT_TWO(0.00)[2]; FREEMAIL_TO(0.00)[gmail.com,freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; SUBJECT_ENDS_QUESTION(1.00)[]; RBL_DBL_DONT_QUERY_IPS(0.00)[2a01:4f8:c2c:26d8::2:from]; MID_RHS_MATCH_FROM(0.00)[]; ASN(0.00)[asn:24940, ipnet:2a01:4f8::/32, country:DE]; ARC_NA(0.00)[]; R_SPF_FAIL(1.00)[-all]; FREEFALL_USER(0.00)[eugen]; FROM_HAS_DN(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_BAD_CTE_7BIT(1.05)[7bit,utf8]; R_DKIM_NA(0.00)[]; DMARC_NA(0.00)[grosbein.net]; TAGGED_RCPT(0.00)[]; SPAMHAUS_ZRD(0.00)[2a01:4f8:c2c:26d8::2:from:127.0.2.255]; MIME_GOOD(-0.10)[text/plain]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCVD_TLS_ALL(0.00)[]; MAILMAN_DEST(0.00)[freebsd-hackers] X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Technical discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 15 Apr 2021 21:44:19 -0000 16.04.2021 4:38, Michio Honda пишет: > Hi, > > Does anyone know how to do this? I want to ensure both my kqueue-based TCP > server app thread and the interrupt thread for the NIC to run at the same > CPU core. cpuset -l $corenumber -x $irqnumber cpuset -l 0 -x 259 This is documented in the cpuset(1) manual page.