Date: Sat, 9 Nov 2013 01:25:39 -0800 From: Adrian Chadd <adrian@freebsd.org> To: Warren Block <wblock@wonkity.com> Cc: Dan Nelson <dnelson@allantgroup.com>, FreeBSD Mailing List <freebsd-questions@freebsd.org>, aurfalien <aurfalien@gmail.com> Subject: Re: CPU Turbo mode Message-ID: <CAJ-VmompRXZURweoz85E1A7x6iYJ-Gp5rWx0F9e1W7wq54ZZhA@mail.gmail.com> In-Reply-To: <alpine.BSF.2.00.1311081704080.84892@wonkity.com> References: <70EC0F10-FAD0-4EA6-8C1F-A95B1C786B7B@gmail.com> <20131031153757.GG63947@dan.emsphone.com> <4A2AEF45-5185-4ED7-98BD-B6975C79A5B9@gmail.com> <alpine.BSF.2.00.1311081704080.84892@wonkity.com>
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On 8 November 2013 16:08, Warren Block <wblock@wonkity.com> wrote: > When it shows 2201, it's in Turbo mode. I don't know if there is anywhere > that shows the actual speed of the single core that is going faster. I enabled this on a 4-core sandy bridge (E3-1260L IIRC) and all four cores suddenly grew a few % more clock cycles. But, it was on a server whose fans are cranked high anyway, so the CPU temperature only grew a degree or two. I think Turbo Boost is boosting all cores that have work on it; it's up to the thread/process scheduler to keep the thermal envelope such that the overclocking works. -adrian
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