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Questions tagged [turbo-boost]

45 questions
43
votes
7 answers

Is Turbo Boost Working?

I recently purchased a laptop with a sandy bridge CPU that is supposed to have turbo boost. Is turbo boost supported in 11.04? How can I tell if it's working? I tried this but it seems to only detect Nehalem CPUs.
gregghz
  • 2,130
11
votes
4 answers

How do I get turbo boost working?

I have a HP Pavilion dv6-2190us Notebook, its got 8GB DDR3 and an i7 processor with 1.60GHz (Turbo Boost up to 2.80GHz) I'm not sure if I'm doing something wrong or missing step or what but I can't for the life of me figure out how to get the turbo…
Alex Weber
  • 293
10
votes
2 answers

How to enable AMD Turbo Core on Ubuntu 14.04?

I'm using Ubuntu 14.04 (3.13.0-24-generic kernel) on AMD A8-4500m based laptop, and I've recently noticed, that AMD Turbo Core is not working at all. Everything works on Windows, however, on Linux CPU frequency can't get past 1.9 GHz (checked with…
m132
  • 829
8
votes
2 answers

Disabling AMD's equivalent (on a Zen-1 Epyc) of Intel's "turbo boost" at runtime?

This may be a terminology problem at my end and a duplicate: On Intel CPUs, I can relatively easy disable turbo boost at runtime by running something like echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo The CPU then runs at its base clock…
s-m-e
  • 191
6
votes
2 answers

How to enable Turbo-boost

I have a Dell XPS 13 (developer edition) which I bought some years ago with Ubuntu 12.04 preinstalled. I've upgraded to Ubuntu 16.04 and since then I noticed my computer became way slower than before on certain heavy tasks. I also noticed that my…
Sebastien Lorber
  • 215
6
votes
2 answers

Is there any way to underclock my CPU or disable turbo boost? Lenovo Y50

I just installed Ubuntu on my Lenovo y50 laptop and have a turbo boost issue. I'm trying to install a program called Gromacs with cmake. But whenever I try to install it, the CPU ramps up to full turbo with all 4 cores. This makes my CPU go up to…
Karan
  • 81
5
votes
1 answer

CPU scaling: how can current frequency be out of min-max range?

I'm trying to understand why my CPUs don't run at higher frequencies (related link) Can someone explain me how is it possible that when a min and a max are defined, the effective value finally goes out of that range? $ cat…
Sebastien Lorber
  • 215
5
votes
1 answer

Intel Turbo Boost not working properly 18.04

I have an I7-8750H and currently have a dual boot machine with Win10 and Ubuntu 18.04 with the 4.18.8 kernel. When I stress test all cores of the cpu in windows it reaches 3.9 GHz which is as it should, but when i stress test in Ubuntu, the cores…
Jamidd
  • 51
4
votes
0 answers

CPU doesn't use TurboBoost in Ubuntu 17.10

I have Lenovo Ideapad 720s 14 with an Intel i7-8850U CPU, using Ubuntu 17.10 with kernel 4.13.0-31-generic. I use i7z to measure clock speed. My CPU refuses to boost above 1.8GHz (its base frequency), even on single-threaded workloads with plenty of…
Morten Lohne
  • 139
4
votes
1 answer

Laptop (thinkpad x201t) with i7 overheats and shuts down. How to manage turbo boost?

I have a Lenovo Thinkpad x201 tablet with Ubuntu 11.04. When I run mathematica or stress, the laptop overheats and shuts down. I loose all my work. I would think that turbo boost (for intel i7) turns on and doesn't turn off when the temperature is…
kirill_igum
  • 233
4
votes
2 answers

CPU Turbo boost: modify temperature limit under 14.04

I've installed kubuntu 14.04, and there is some problem with CPU turbo frequency. I've read a lot about it, but can't find the correct answer. There is an i7-3630QM CPU @ 2.40GHz with 3.20GHz turbo in my Lenovo Y580 notebook. If i put the cpu at…
liszi
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4
votes
2 answers

Why is the Intel Turbo Boost Mode not running at maximum speed?

I tested CPU frequencies with either the Intel tool i7z and turbostat from the linux-tools package (sudo modprobe msr, sudo turbostat) and what I find as maximum frequencies for two different processors is lower as what Intel states as maximum turbo…
joschi
  • 1,794
4
votes
4 answers

Disabling Intel Turbo Boost in 12.04

I have a question concerning Intel Turbo Boost and the ability to disable it in Ubuntu 12.04. I wanted to disable Turbo Boost because it produced a lot of heat and I didn't find a need for it in Ubuntu (being so lightweight as it is compared to…
AFriggenSquirrel
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4
votes
2 answers

Intel i7-1065G7 does not reach maximal turbo boost frequency

I have a laptop with an Intel i7-1065G7 cpu. turbostat reports 35 * 100.0 = 3500.0 MHz max turbo 8 active cores 35 * 100.0 = 3500.0 MHz max turbo 7 active cores 35 * 100.0 = 3500.0 MHz max turbo 6 active cores 35 * 100.0 = 3500.0 MHz max turbo 5…
0x539
  • 278
3
votes
2 answers

AMD Turbo Core not working - Change CPU driver?

I Got an AMD FX(tm)-8350 Eight-Core Processor with 4GHz frequency and up to 4,2 GHz Turbo Core speed, but I cant get the Turbo Core to work. dmesg | grep powernow should tell me something like: [ 2.187170] powernow-k8: Found 1 AMD FX(tm)-8150…
user264593
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