From owner-freebsd-hackers@freebsd.org Wed Jan 23 07:52:55 2019 Return-Path: Delivered-To: freebsd-hackers@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 908DB14BE83D for ; Wed, 23 Jan 2019 07:52:55 +0000 (UTC) (envelope-from wojtek@puchar.net) Received: from puchar.net (puchar.net [194.1.144.90]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 3BD918F062 for ; Wed, 23 Jan 2019 07:52:53 +0000 (UTC) (envelope-from wojtek@puchar.net) Received: Received: from 127.0.0.1 (localhost [127.0.0.1]) by puchar.net (8.15.2/8.15.2) with ESMTPS id x0N7dkgB059920 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Wed, 23 Jan 2019 08:39:46 +0100 (CET) (envelope-from puchar-wojtek@puchar.net) Received: from localhost (puchar-wojtek@localhost) by puchar.net (8.15.2/8.15.2/Submit) with ESMTP id x0N7dfk9059905; Wed, 23 Jan 2019 08:39:41 +0100 (CET) (envelope-from puchar-wojtek@puchar.net) Date: Wed, 23 Jan 2019 08:39:41 +0100 (CET) From: Wojciech Puchar To: Mark Saad cc: FreeBSD Hackers Subject: Re: CPU Isolation In-Reply-To: Message-ID: References: User-Agent: Alpine 2.20 (BSF 67 2015-01-07) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed X-Rspamd-Queue-Id: 3BD918F062 X-Spamd-Bar: ------ Authentication-Results: mx1.freebsd.org; spf=pass (mx1.freebsd.org: domain of wojtek@puchar.net designates 194.1.144.90 as permitted sender) smtp.mailfrom=wojtek@puchar.net X-Spamd-Result: default: False [-6.87 / 15.00]; ARC_NA(0.00)[]; NEURAL_HAM_MEDIUM(-1.00)[-1.000,0]; FROM_HAS_DN(0.00)[]; R_SPF_ALLOW(-0.20)[+mx]; NEURAL_HAM_LONG(-1.00)[-1.000,0]; MIME_GOOD(-0.10)[text/plain]; RCVD_TLS_LAST(0.00)[]; DMARC_NA(0.00)[puchar.net]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; TO_DN_ALL(0.00)[]; MX_GOOD(-0.01)[puchar.net]; RCPT_COUNT_TWO(0.00)[2]; RCVD_IN_DNSWL_NONE(0.00)[90.144.1.194.list.dnswl.org : 127.0.10.0]; NEURAL_HAM_SHORT(-0.98)[-0.982,0]; IP_SCORE(-3.58)[ip: (-9.44), ipnet: 194.1.144.0/24(-4.72), asn: 43476(-3.78), country: PL(0.03)]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:43476, ipnet:194.1.144.0/24, country:PL]; MID_RHS_MATCH_FROM(0.00)[] X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 23 Jan 2019 07:52:55 -0000 man cpuset On Tue, 22 Jan 2019, Mark Saad wrote: > All > I am looking to setup a 12-STABLE box in a way that is similar to a > CentOS server I am running. > That server is setup using the boot option isocpus, to remove > cores/cpus from the kernel scheduler at boot. What I want to try on > 12-STABLE is to set aside some cores to run process and some kernel > threads that will only always run on a dedicated core with out the > chance for being preempted / interrupted by something else on that > core / cpu . What I do not see is a way to evict processes off a > running cpu post boot or a way to isolate them preboot. Am I missing > something? > > -- > mark saad | nonesuch@longcount.org > _______________________________________________ > freebsd-hackers@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-hackers > To unsubscribe, send any mail to "freebsd-hackers-unsubscribe@freebsd.org" > >