From owner-freebsd-current@freebsd.org Sun Mar 28 08:11:01 2021 Return-Path: Delivered-To: freebsd-current@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 9F9A85B9A13 for ; Sun, 28 Mar 2021 08:11:01 +0000 (UTC) (envelope-from hps@selasky.org) Received: from mail.turbocat.net (turbocat.net [IPv6:2a01:4f8:c17:6c4b::2]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4F7T1K1FsNz3qwM for ; Sun, 28 Mar 2021 08:11:01 +0000 (UTC) (envelope-from hps@selasky.org) Received: from hps2020.home.selasky.org (unknown [178.17.145.105]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by mail.turbocat.net (Postfix) with ESMTPSA id 0C028260744; Sun, 28 Mar 2021 10:11:00 +0200 (CEST) Subject: Re: freebsd 13 ryzen micro stutter To: Santiago Martinez , freebsd-current@freebsd.org References: <20210323101146.18c9a969@bsd64.grem.de> <677da81d7af9781be6b46c7cba4efd05@riseup.net> <54768f44-c110-d58a-1e7b-61843cde754e@codenetworks.net> <9638abfe-fd9e-6855-b3c7-ee796d1c5ce5@codenetworks.net> From: Hans Petter Selasky Message-ID: <2a4dad60-f1b8-8d48-337a-d23893a84f04@selasky.org> Date: Sun, 28 Mar 2021 10:09:53 +0200 User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <9638abfe-fd9e-6855-b3c7-ee796d1c5ce5@codenetworks.net> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4F7T1K1FsNz3qwM X-Spamd-Bar: --- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=pass (mx1.freebsd.org: domain of hps@selasky.org designates 2a01:4f8:c17:6c4b::2 as permitted sender) smtp.mailfrom=hps@selasky.org X-Spamd-Result: default: False [-3.28 / 15.00]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; R_SPF_ALLOW(-0.20)[+a:mail.turbocat.net:c]; MID_RHS_MATCH_FROM(0.00)[]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[selasky.org]; RBL_DBL_DONT_QUERY_IPS(0.00)[2a01:4f8:c17:6c4b::2:from]; SPAMHAUS_ZRD(0.00)[2a01:4f8:c17:6c4b::2:from:127.0.2.255]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; RCPT_COUNT_TWO(0.00)[2]; NEURAL_HAM_SHORT(-0.98)[-0.983]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:24940, ipnet:2a01:4f8::/29, country:DE]; RCVD_COUNT_TWO(0.00)[2]; MAILMAN_DEST(0.00)[freebsd-current] X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 28 Mar 2021 08:11:01 -0000 On 3/27/21 11:54 AM, Santiago Martinez wrote: > Hi, i have the same output as @Nils B. If i run with steal =2 and dtrace > the micro stutter doesn't happen but as soon as i stop the dtrace script > it the stutters come back again. > Here is a patch which you can try. Not sure if it helps. https://reviews.freebsd.org/D29467 --HPS