Date: Tue, 11 Jan 2022 00:45:00 +0700 From: Eugene Grosbein <eugen@grosbein.net> To: Kevin Oberman <rkoberman@gmail.com>, FreeBSD Stable ML <stable@freebsd.org> Subject: Re: Odd performance problems with Lenovo L15 Message-ID: <3d702fac-6177-b881-5084-decce2aa52bb@grosbein.net> In-Reply-To: <CAN6yY1sK%2BxOi6Hy5KXefFa9cHhmTirCOmFFanZrRF8LzYbOUNQ@mail.gmail.com> References: <CAN6yY1sK%2BxOi6Hy5KXefFa9cHhmTirCOmFFanZrRF8LzYbOUNQ@mail.gmail.com>
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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.
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