Date: Wed, 5 Sep 2018 17:49:53 +0300 From: Lev Serebryakov <lev@FreeBSD.org> To: "D. Ebdrup" <debdrup@gmail.com>, freebsd-hackers@freebsd.org Subject: Re: Celeron J3160 with enabled Turbo mode stays at 480MHz (lowestsetting) forever and can not lower frequency without Tuebo mode Message-ID: <3516c619-c50a-18c6-9bdd-0e6cad751e30@FreeBSD.org> In-Reply-To: <CANtgGBqSy0gC87W0-uxsYyy5ivpUwVJ_=rAKnu4obP%2BiHxEiGg@mail.gmail.com> References: <201809051253.w85CrAX3022473@slippy.cwsent.com> <0770c5f2-a5d9-4cd4-1421-72006465ffba@FreeBSD.org> <CANtgGBqSy0gC87W0-uxsYyy5ivpUwVJ_=rAKnu4obP%2BiHxEiGg@mail.gmail.com>
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On 05.09.2018 16:57, D. Ebdrup wrote: >>>> 1601 is not the actual frequency. That is just how it is reported. It >>>> is almost certainly running much higher than 1601. >>> >>> We don't know this until we can independently verify it. Do you mind >>> running some benchmarks with and without turbo mode? >> What could be adequate benchmarks for this? Something likje "openssl >> speed aes128-cbc" or I need more specific one? > > A new port called sysutils/turbostat can report actual turboboost > values for Intel CPUs. Oh, thank you! > Unfortunately, I didn't have much luck looking for documentation that > covers how this can be added to FreeBSD base (preferably exposed via a > sysctl), but I suspect it would involve both machine-dependent and > machine-independent parts since both AMD, as well as ARM and other > architectures use some form of equivalent functionality. It should become part of cpufreq(8) for sure. -- // Lev Serebryakov
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