Page 1 of 2 12 LastLast
Results 1 to 10 of 16

Thread: AMD Linux 3.12 Tests With The Performance Governor

  1. #1
    Join Date
    Jan 2007
    Posts
    15,655

    Default AMD Linux 3.12 Tests With The Performance Governor

    Phoronix: AMD Linux 3.12 Tests With The Performance Governor

    Complementing the article earlier today why Radeon graphics are faster on Linux 3.12, here's some benchmarks now showing the open-source Radeon results when using the CPUfreq performance governor on Linux 3.12 with the Core i7 4770K Haswell...

    http://www.phoronix.com/vr.php?view=MTQ4NjE

  2. #2
    Join Date
    Sep 2012
    Posts
    297

    Default

    So basically there is no need to force the performance governor with the upcoming 3.12 kernel.

  3. #3
    Join Date
    Apr 2013
    Posts
    157

    Default

    Great post and great job for all this benchmarkings.
    It would be cool a radeon free driver + kernel 3.12 + dpm + mesa 10.0 vs catalyst. Maybe we could be surprised about the results

  4. #4
    Join Date
    Oct 2011
    Location
    Rural Alberta, Canada
    Posts
    1,058

    Default

    I would appreciate some testing on AMD CPUs as well though, just to see how general this is.

  5. #5
    Join Date
    Feb 2013
    Posts
    16

    Default

    Quote Originally Posted by edoantonioco View Post
    Great post and great job for all this benchmarkings.
    It would be cool a radeon free driver + kernel 3.12 + dpm + mesa 10.0 vs catalyst. Maybe we could be surprised about the results
    And catalyst should be run with performance governor, otherwise it won't be fair.

  6. #6
    Join Date
    Aug 2012
    Location
    Pennsylvania, United States
    Posts
    1,939

    Default

    Michael, what does Intel P-State look like compared to 3.11 and 3.12 ondemand?

  7. #7
    Join Date
    Apr 2013
    Posts
    157

    Default

    Quote Originally Posted by nslqqq View Post
    And catalyst should be run with performance governor, otherwise it won't be fair.
    Another thing, with the "performance" flag activated in /sys/class/drm/card0/device/power_dpm_state. That helps the DPM a lot, not sure if it should be necessary done for every ati card.

  8. #8
    Join Date
    Sep 2007
    Posts
    366

    Default

    @Michael:
    The actual power consumption would be interesting for 3.11 vs 3.12. Maybe the new defaults for the ondemand governor allow longer sleeping periods.

    Also, could you run the same set of benchmarks (3.11 ondemand, 3.12 ondemand, 3.12 performance) for an AMD APU?
    Last edited by oleid; 10-15-2013 at 03:12 PM.

  9. #9

    Default

    One interesting case seems to be missing: 3.11 with performance gouvernor.

  10. #10
    Join Date
    Sep 2012
    Posts
    88

    Default

    Quote Originally Posted by AnonymousCoward View Post
    One interesting case seems to be missing: 3.11 with performance gouvernor.
    Might as well try it with 3.12 too

    I'd like to see the comparative results of:

    Intel platform w/ HD 6950
    - (broken p-state, aka with cpufreq) ondemand, performance
    - with p-state
    - 3.11 v 3.12
    - catalyst vs OSS
    - requires 12 runs

    AMD platform w/ discrete HD 6950
    - ondemand, performance
    - 3.11 v 3.12
    - catalyst vs OSS
    - requires 8 runs

    AMD platform w/ high end APU (say an A10)
    - ondemand, performance
    - 3.11 v 3.12
    - catalyst vs OSS
    - requires 8 runs

    Michael, I expect the results to be on my desk by 5PM

Posting Permissions

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