Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: Intel's P-State Driver Is Getting Better Tuned For Performance

  1. #1
    Join Date
    Jan 2007
    Posts
    14,809

    Default Intel's P-State Driver Is Getting Better Tuned For Performance

    Phoronix: Intel's P-State Driver Is Getting Better Tuned For Performance

    The Intel P-State driver that's found in modern versions of the Linux kernel as a replacement to the older CPUfreq code is getting tuned for better performance while boasting greater power-savings...

    http://www.phoronix.com/vr.php?view=MTY3Mzg

  2. #2
    Join Date
    Nov 2012
    Posts
    144

    Default

    Does anyone know if also the first gen Core i5's will be supported, e.g. my i5-750? I can't find any information whatsoever on it..

  3. #3
    Join Date
    Mar 2013
    Location
    Porto
    Posts
    217

    Default hm!

    Quote Originally Posted by Nuc!eoN View Post
    Does anyone know if also the first gen Core i5's will be supported, e.g. my i5-750? I can't find any information whatsoever on it..
    you only need to check if its working or not if you are using ubuntu use this command in terminal "cpufreq-info"

  4. #4
    Join Date
    Jan 2011
    Posts
    193

    Default

    Saving the world, one gram of carbon at a time. 0.35% is nice, but here's hoping for 3.5%.

  5. #5

    Default

    You would think Intel would throw more resources behind this type of code to make sure energy and performance was as good as it could get.

  6. #6
    Join Date
    Dec 2008
    Posts
    27

    Default

    I don't know if this has to do with the articles subject, but I found it strange that when compiling on my kubuntu install it easily took 2 times longer to compile various software compared to OSX on the same machine. I saw that the CPU never clocked to its max state. Lowering a threshold somewhere(don't remember exactly) in proc/sysfs remedied this.

  7. #7
    Join Date
    Nov 2010
    Posts
    27

    Default

    Nice to see there is still some efford to make the CPU more power efficient. But what about the Package state issues? My Haswell i7 w/o discrete gpu still won't enter PC7 when idle resulting in approx twice as much power drain compared to my old SNB i7.

  8. #8
    Join Date
    Dec 2013
    Posts
    16

    Default

    Quote Originally Posted by uwgandalf View Post
    when compiling on my kubuntu install it easily took 2 times longer to compile
    Ubuntu disables P-State driver by default in their kernel.

  9. #9
    Join Date
    Nov 2012
    Location
    France
    Posts
    575

    Default

    Are there software ways to measure power usage on a non-Windows OS?

  10. #10
    Join Date
    Nov 2010
    Posts
    27

    Default

    Yes! sysfs provides access to Battery properties such as discharge current.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •