Re: [PATCH v3 1/3] cpufreq: ondemand: Change the calculation of target frequency

[Stratos Karafotis <stratosk@semaphore.gr>]

On 06/08/2013 05:05 PM, Rafael J. Wysocki wrote:
> On Saturday, June 08, 2013 03:34:29 PM Stratos Karafotis wrote:
>> I also did the test with the way you mentioned. But I thought to run turbostat for 100 sec as I did with powertop.
> 
> Ah, OK.
> 
>> Actually benchmark lasts about 96 secs.
>>
>> I think that we use almost the same energy for 100 sec to run the same load a little bit faster. I think this means also a reduce to power consumption.
>>
>> I will also send the results running the test as you said.
> 
> Cool, thanks!

More results running:
./turbostat phoronix-test-suite benchmark pts/build-linux-kernel

Measurement steps with and without this patch:
1) Reboot system
2) Run twice the command above without taking measurement
3) Wait few minutes
4) Run the command and take measurement

Thanks,
Stratos

--------------------------------------------------------------
Test WITHOUT this patch:

Phoronix Test Suite v4.6.0

    Installed: pts/build-linux-kernel-1.3.0

System Information

Hardware:
Processor: Intel Core i7-3770 @ 3.40GHz (8 Cores), Motherboard: ASUS CM6870, Chipset: Intel Xeon E3-1200 v2/3rd, Memory: 2 x 4096 MB DDR3-1600MHz HY64C1C1624ZY, Disk: 1000GB Seagate ST1000DM003-9YN1, Graphics: NVIDIA GeForce GT 640 3072MB, Audio: Realtek ALC892, Monitor: S23B350, Network: Realtek RTL8111/8168 + Ralink RT3090 Wireless 802.11n 1T/1R

Software:
OS: Fedora 18, Kernel: 3.10.0-rc3v+ (x86_64), Desktop: KDE 4.10.3, Display Server: X Server 1.13.3, Display Driver: nouveau 1.0.7, File-System: ext4, Screen Resolution: 1920x1080

    Would you like to save these test results (Y/n): 

Timed Linux Kernel Compilation 3.1:
    pts/build-linux-kernel-1.3.0
    Test 1 of 1
    Estimated Trial Run Count:    3
    Estimated Time To Completion: 2 Minutes
        Running Pre-Test Script @ 22:59:35
        Started Run 1 @ 22:59:46
        Running Interim Test Script @ 23:00:00
        Started Run 2 @ 23:00:04
        Running Interim Test Script @ 23:00:13
        Started Run 3 @ 23:00:17
        Running Interim Test Script @ 23:00:26  [Std. Dev: 10.04%]
        Started Run 4 @ 23:00:30
        Running Interim Test Script @ 23:00:39  [Std. Dev: 8.98%]
        Started Run 5 @ 23:00:43
        Running Interim Test Script @ 23:00:53  [Std. Dev: 7.80%]
        Started Run 6 @ 23:00:56  [Std. Dev: 7.21%]
        Running Post-Test Script @ 23:01:06

    Test Results:
        11.121481895447
        9.3301539421082
        9.4521908760071
        9.3115320205688
        9.720575094223
        9.396096944809

    Average: 9.72 Seconds

cor CPU    %c0  GHz  TSC SMI    %c1    %c3    %c6    %c7 CTMP PTMP   %pc2   %pc3   %pc6   %pc7  Pkg_W  Cor_W GFX_W
         40.96 3.57 3.39   0   9.83   3.36  45.85   0.00   46   46   0.00   0.00   0.00   0.00  27.25  21.27  0.00
  0   0  37.65 3.67 3.39   0  20.53   3.18  38.64   0.00   46   46   0.00   0.00   0.00   0.00  27.25  21.27  0.00
  0   4  52.10 3.54 3.39   0   6.08
  1   1  35.21 3.66 3.39   0  11.45   3.80  49.54   0.00   41
  1   5  41.99 3.45 3.39   0   4.66
  2   2  35.46 3.66 3.39   0  10.97   3.60  49.97   0.00   38
  2   6  41.90 3.48 3.39   0   4.53
  3   3  39.44 3.69 3.39   0  12.46   2.86  45.24   0.00   41
  3   7  43.90 3.45 3.39   0   7.99
94.876210 sec


---------------------------------------------------------------------
Test WITH this patch:

Phoronix Test Suite v4.6.0

    Installed: pts/build-linux-kernel-1.3.0

System Information

Hardware:
Processor: Intel Core i7-3770 @ 3.40GHz (8 Cores), Motherboard: ASUS CM6870, Chipset: Intel Xeon E3-1200 v2/3rd, Memory: 2 x 4096 MB DDR3-1600MHz HY64C1C1624ZY, Disk: 1000GB Seagate ST1000DM003-9YN1, Graphics: NVIDIA GeForce GT 640 3072MB, Audio: Realtek ALC892, Monitor: S23B350, Network: Realtek RTL8111/8168 + Ralink RT3090 Wireless 802.11n 1T/1R

Software:
OS: Fedora 18, Kernel: 3.10.0-rc3+ (x86_64), Desktop: KDE 4.10.3, Display Server: X Server 1.13.3, Display Driver: nouveau 1.0.7, File-System: ext4, Screen Resolution: 1920x1080

    Would you like to save these test results (Y/n): 

Timed Linux Kernel Compilation 3.1:
    pts/build-linux-kernel-1.3.0
    Test 1 of 1
    Estimated Trial Run Count:    3
    Estimated Time To Completion: 2 Minutes
        Running Pre-Test Script @ 22:48:20
        Started Run 1 @ 22:48:30
        Running Interim Test Script @ 22:48:44
        Started Run 2 @ 22:48:47
        Running Interim Test Script @ 22:48:56
        Started Run 3 @ 22:49:00
        Running Interim Test Script @ 22:49:10  [Std. Dev: 4.68%]
        Started Run 4 @ 22:49:13
        Running Interim Test Script @ 22:49:23  [Std. Dev: 4.72%]
        Started Run 5 @ 22:49:26
        Running Interim Test Script @ 22:49:35  [Std. Dev: 4.25%]
        Started Run 6 @ 22:49:39  [Std. Dev: 3.98%]
        Running Post-Test Script @ 22:49:48

    Test Results:
        10.205597162247
        9.2953701019287
        9.8262219429016
        9.2547709941864
        9.4089620113373
        9.3398430347443

    Average: 9.56 Seconds

cor CPU    %c0  GHz  TSC SMI    %c1    %c3    %c6    %c7 CTMP PTMP   %pc2   %pc3   %pc6   %pc7  Pkg_W  Cor_W GFX_W
         41.50 3.59 3.39   0   9.76   3.10  45.64   0.00   46   46   0.00   0.00   0.00   0.00  27.66  21.69  0.00
  0   0  35.70 3.66 3.39   0  13.02   3.74  47.55   0.00   46   46   0.00   0.00   0.00   0.00  27.66  21.69  0.00
  0   4  44.02 3.49 3.39   0   4.69
  1   1  37.20 3.67 3.39   0  12.29   2.90  47.62   0.00   39
  1   5  44.49 3.54 3.39   0   4.99
  2   2  35.62 3.66 3.39   0  20.04   2.53  41.81   0.00   40
  2   6  52.39 3.55 3.39   0   3.27
  3   3  37.65 3.67 3.39   0  13.53   3.24  45.58   0.00   40
  3   7  44.94 3.55 3.39   0   6.25
92.544695 sec