Date: Fri, 30 Jul 2021 02:24:17 +0000 From: bugzilla-noreply@freebsd.org To: bugs@FreeBSD.org Subject: [Bug 234733] cpufreq: Setting CPU frequency with sysctl dev.cpu.0.fr slows a Ryzen 2700X down Message-ID: <bug-234733-227-jGRXMVZGPT@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-234733-227@https.bugs.freebsd.org/bugzilla/> References: <bug-234733-227@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D234733 Kubilay Kocak <koobs@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|bugs@FreeBSD.org |cem@freebsd.org Summary|Setting CPU frequency with |cpufreq: Setting CPU |sysctl dev.cpu.0.fr slows a |frequency with sysctl |Ryzen 2700X down |dev.cpu.0.fr slows a Ryzen | |2700X down Flags| |mfc-stable12? --- Comment #26 from Kubilay Kocak <koobs@FreeBSD.org> --- ^Triage: Assign to committer that resolved Context:=20 IRC user reporting: ASUS Pro WS 565-ACE motherboard (AMI BIOS) and AMD Ryzen 9 5950X 16-Core Processor. I've installed 12.2/amd64 STABLE (GENERIC), it runs fine but I cannot get Precision Boost 2 supported. dev.cpu.0.freq_levels: 3400/3740 2800/2800 2200/1980 I expect 3401 in this list as sign of CPU Boost support, but it's not there "acpidump -d" shows that "_PSS: Performance Supported States" is here in AC= PI tables. There are also following errors in boot log but I doubt they have connectio= n to boost problems: acpi_wmi0: cannot find EC device device_attach: acpi_wmi0 attach returned 6 I've added "hint.apic.0.clock=3D0" to /boot/loader.conf and "dev.cpu.0.cx_lowest=3DC2" to /etc/sysctl.conf and it enabled C2 state inde= ed, but still no Boost. I've pointed them here and asked them to apply the patch to their stable/12= to reproduce/validate the fix (if this issue is indeed related). --=20 You are receiving this mail because: You are the assignee for the bug.=
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