Odp: Re: Bogus turbo mode with Intel(R) Core(TM)2 Duo CPU P9700 (2.80GHz)

Sat Nov 26 04:56:48 UTC 2016

Thanks for reply!   If I've understood you correctly, that means the ACPI   table somehow provides (lists) turbo mode for this CPU   even though it does not support it [1]? Is there a way to   check it's real speed under load? I'm guessing no.   [1] ark.intel.com  ark.intel.com    

                  Dnia 26 listopada 2016 05:40 Adrian Chadd <adrian.chadd at gmail.com> napisał(a):

                   the acpi cpu frequency module just exposes the frequency lis given to 
 it by ACPI. If your ACPI table exposes the turbo boost frequency but 
 doesn't implement it on the backend, FreeBSD doesn't know. We just 
 obey what we're told. :) 

 -a 

 On 25 November 2016 at 20:16, Jakub Lach <jakub_lach at mailplus.pl> wrote: 

 Hello, 

 Since I'm running this CPU, I've noticed there is additional 
 field in supported frequency (under heavy load)- 

 dev.cpu.0.cx_supported: C1/1/1 C2/2/1 C3/3/57 
 dev.cpu.0.freq_levels: 2801/35000 2800/35000 2450/30625 2133/23888 
 1866/20902 1600/15000 1400/13125 1200/11250 1000/9375 800/12000 700/10500 
 600/9000 500/7500 400/6000 300/4500 200/3000 100/1500 
 dev.cpu.0.freq: 2801 
 dev.cpu.0.temperature: 67,0C 

 as far as I know, the +1 MHz mode is a turbo boost factory 
 overclock, however this CPU does not support it. Anybody knows 
 what's going on? 

 I've previously had T9400 (2.53 GHz), there was no such thing listed 
 and it was running slightly cooler under load, despite having higher 
 TDP (however P9700 is a lot cooler when idle, as expected). 

 Still, I don't think it is possible it's actually being overclocked? 

 -- 
 View this message in context:  freebsd.1045724.x6.nabble.com freebsd.1045724.x6.nabble.com 
 Sent from the freebsd-stable mailing list archive at Nabble.com. 
 ______________________________ 
  freebsd-stable at freebsd.org  mailing list 
 lists.freebsd.org lists.freebsd.org 
 To unsubscribe, send any mail to "freebsd-stable-unsubscribe at fr