From eugen@grosbein.net Mon Jan 10 17:45:00 2022 X-Original-To: stable@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id CE57F1931C92 for ; Mon, 10 Jan 2022 17:45:10 +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 4JXh6t4GXlz4jdX for ; Mon, 10 Jan 2022 17:45:10 +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 20AHj7w0077018 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT) for ; Mon, 10 Jan 2022 17:45:08 GMT (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: stable@freebsd.org 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 20AHj7dk002723 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Tue, 11 Jan 2022 00:45:07 +0700 (+07) (envelope-from eugen@grosbein.net) Subject: Re: Odd performance problems with Lenovo L15 To: Kevin Oberman , FreeBSD Stable ML References: From: Eugene Grosbein Message-ID: <3d702fac-6177-b881-5084-decce2aa52bb@grosbein.net> Date: Tue, 11 Jan 2022 00:45:00 +0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 List-Id: Production branch of FreeBSD source code List-Archive: https://lists.freebsd.org/archives/freebsd-stable List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-stable@freebsd.org X-BeenThere: freebsd-stable@freebsd.org MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT autolearn=disabled version=3.4.2 X-Spam-Report: * -0.0 SHORTCIRCUIT No description available. * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on hz.grosbein.net X-Rspamd-Queue-Id: 4JXh6t4GXlz4jdX X-Spamd-Bar: ---- Authentication-Results: mx1.freebsd.org; none X-Spamd-Result: default: False [-4.00 / 15.00]; REPLY(-4.00)[] X-ThisMailContainsUnwantedMimeParts: N 10.01.2022 12:12, Kevin Oberman wrote: > I continue to see odd performance issues and just noticed something I can put my finger on that may explain it. It has gone from odd to totally off the rails. Any ideas will be appreciated. > > Normally, on an idle system I see all CPUs running at full speed. > dev.cpu.7.freq: 2101 > dev.cpu.6.freq: 2101 > dev.cpu.5.freq: 2101 > dev.cpu.4.freq: 2101 > dev.cpu.3.freq: 2101 > dev.cpu.2.freq: 2101 > dev.cpu.1.freq: 2101 > dev.cpu.0.freq: 2101 > > But, during a large compile (e.g. llvm or firefox), things sometimes go wonky. Everything slows to a crawl. And, I see: > dev.cpu.7.freq: 400 > dev.cpu.6.freq: 400 > dev.cpu.5.freq: 400 > dev.cpu.4.freq: 400 > dev.cpu.3.freq: 400 > dev.cpu.2.freq: 400 > dev.cpu.1.freq: 400 > dev.cpu.0.freq: 2101 Did you set by any chance sysctl hw.acpi.thermal.tz0.passive_cooling=1 ? Maybe, some other non-default settings for any of hw.acpi.thermal.* in /etc/sysctl.conf or /boot/loader.conf? Is powerd(8) started? Also, you did not mention your FreeBSD version.