How could I add support for an event modifier in perf

The name of the pictureThe name of the pictureThe name of the pictureClash Royale CLAN TAG#URR8PPP











up vote
1
down vote

favorite












I need to account power for the kernel space, but unfortunately the k modifier are not supported for the power/energy-cores/. I have an example of what I'm trying to do below.



I'm reading the source of perf and the structure of the Kernel PMU Events, but I'm a bit lost. Is there someone familiar with the source code of perf who could share some tips of how these modifiers works in the source?



 user@dkphome:~$ sudo perf stat -a -e power/energy-cores/k -I 1000 sleep 5
 # time counts unit events
 1.000099515 <not supported> Joules power/energy-cores/k 
 2.000246523 <not supported> Joules power/energy-cores/k 
 3.000440743 <not supported> Joules power/energy-cores/k 
 4.000673143 <not supported> Joules power/energy-cores/k 
 5.000722624 <not supported> Joules power/energy-cores/k 
 user@dkphome:~$ sudo perf stat -a -e power/energy-cores/ -I 1000 sleep 5
 # time counts unit events
 1.000128209 0,19 Joules power/energy-cores/ 
 2.000257170 0,25 Joules power/energy-cores/ 
 3.000406715 0,26 Joules power/energy-cores/ 
 4.000571140 0,20 Joules power/energy-cores/ 
 5.000711815 1,01 Joules power/energy-cores/ 
 5.000882867 0,00 Joules power/energy-cores/


PS: This other question was a lot of help What are Kernel PMU event-s in perf_events list?




linux-kernel cpu power-management perf




share|improve this question


























    up vote
    1
    down vote

    favorite












    I need to account power for the kernel space, but unfortunately the k modifier are not supported for the power/energy-cores/. I have an example of what I'm trying to do below.



    I'm reading the source of perf and the structure of the Kernel PMU Events, but I'm a bit lost. Is there someone familiar with the source code of perf who could share some tips of how these modifiers works in the source?



     user@dkphome:~$ sudo perf stat -a -e power/energy-cores/k -I 1000 sleep 5
     # time counts unit events
     1.000099515 <not supported> Joules power/energy-cores/k 
     2.000246523 <not supported> Joules power/energy-cores/k 
     3.000440743 <not supported> Joules power/energy-cores/k 
     4.000673143 <not supported> Joules power/energy-cores/k 
     5.000722624 <not supported> Joules power/energy-cores/k 
     user@dkphome:~$ sudo perf stat -a -e power/energy-cores/ -I 1000 sleep 5
     # time counts unit events
     1.000128209 0,19 Joules power/energy-cores/ 
     2.000257170 0,25 Joules power/energy-cores/ 
     3.000406715 0,26 Joules power/energy-cores/ 
     4.000571140 0,20 Joules power/energy-cores/ 
     5.000711815 1,01 Joules power/energy-cores/ 
     5.000882867 0,00 Joules power/energy-cores/


    PS: This other question was a lot of help What are Kernel PMU event-s in perf_events list?




    linux-kernel cpu power-management perf




    share|improve this question
























      up vote
      1
      down vote

      favorite









      up vote
      1
      down vote

      favorite











      I need to account power for the kernel space, but unfortunately the k modifier are not supported for the power/energy-cores/. I have an example of what I'm trying to do below.



      I'm reading the source of perf and the structure of the Kernel PMU Events, but I'm a bit lost. Is there someone familiar with the source code of perf who could share some tips of how these modifiers works in the source?



       user@dkphome:~$ sudo perf stat -a -e power/energy-cores/k -I 1000 sleep 5
       # time counts unit events
       1.000099515 <not supported> Joules power/energy-cores/k 
       2.000246523 <not supported> Joules power/energy-cores/k 
       3.000440743 <not supported> Joules power/energy-cores/k 
       4.000673143 <not supported> Joules power/energy-cores/k 
       5.000722624 <not supported> Joules power/energy-cores/k 
       user@dkphome:~$ sudo perf stat -a -e power/energy-cores/ -I 1000 sleep 5
       # time counts unit events
       1.000128209 0,19 Joules power/energy-cores/ 
       2.000257170 0,25 Joules power/energy-cores/ 
       3.000406715 0,26 Joules power/energy-cores/ 
       4.000571140 0,20 Joules power/energy-cores/ 
       5.000711815 1,01 Joules power/energy-cores/ 
       5.000882867 0,00 Joules power/energy-cores/


      PS: This other question was a lot of help What are Kernel PMU event-s in perf_events list?




      linux-kernel cpu power-management perf




      share|improve this question














      I need to account power for the kernel space, but unfortunately the k modifier are not supported for the power/energy-cores/. I have an example of what I'm trying to do below.



      I'm reading the source of perf and the structure of the Kernel PMU Events, but I'm a bit lost. Is there someone familiar with the source code of perf who could share some tips of how these modifiers works in the source?



       user@dkphome:~$ sudo perf stat -a -e power/energy-cores/k -I 1000 sleep 5
       # time counts unit events
       1.000099515 <not supported> Joules power/energy-cores/k 
       2.000246523 <not supported> Joules power/energy-cores/k 
       3.000440743 <not supported> Joules power/energy-cores/k 
       4.000673143 <not supported> Joules power/energy-cores/k 
       5.000722624 <not supported> Joules power/energy-cores/k 
       user@dkphome:~$ sudo perf stat -a -e power/energy-cores/ -I 1000 sleep 5
       # time counts unit events
       1.000128209 0,19 Joules power/energy-cores/ 
       2.000257170 0,25 Joules power/energy-cores/ 
       3.000406715 0,26 Joules power/energy-cores/ 
       4.000571140 0,20 Joules power/energy-cores/ 
       5.000711815 1,01 Joules power/energy-cores/ 
       5.000882867 0,00 Joules power/energy-cores/


      PS: This other question was a lot of help What are Kernel PMU event-s in perf_events list?





      linux-kernel cpu power-management perf





      share|improve this question













      share|improve this question




      share|improve this question








      edited Oct 14 '17 at 16:57

























      asked Oct 14 '17 at 3:26









      Leandro Silva

      63




      63

























          active

          oldest

          votes











          Your Answer







          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "106"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          convertImagesToLinks: false,
          noModals: false,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: null,
          bindNavPrevention: true,
          postfix: "",
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );













           

          draft saved


          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f398055%2fhow-could-i-add-support-for-an-event-modifier-in-perf%23new-answer', 'question_page');

          );

          Post as a guest






















          active

          oldest

          votes













          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes















           

          draft saved


          draft discarded















































           


          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2funix.stackexchange.com%2fquestions%2f398055%2fhow-could-i-add-support-for-an-event-modifier-in-perf%23new-answer', 'question_page');

          );

          Post as a guest
































































          -

          Popular posts from this blog

          How to check contact read email or not when send email to Individual?

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this question asked Sep 26 at 0:12 ToanLuong 49 9 add a comment  |  up vote 1 down vote favorite I'm using WordPress 4.9.8, CiviCRM to 5.5.1, I usually send email to contact by Search> Find contacts View contact details Action> Send email Send email ok, Contact received mail ok like picture But status only Email sent though contact read email or not. So, can CiviCRM can change status to Email read when contact read email? wordpress email share | improve this questi...
          Read more

          Displaying single band from multi-band raster using QGIS

          Image
          Clash Royale CLAN TAG #URR8PPP 1 How can I extract a single band from multi-band raster in QGIS? I have an remote sensed image which has 6 bands (including NDVI band), I want to display each band separately, but have no idea how to do. I have seen some questions similar here but none worked for me. The original image (has 6 bands) is: I want to display the band 6 which should be like this: But I tried gdal_translate, and couldn't get the correct result. What I have got is: qgis raster multi-band share | improve this question edited Mar 5 at 0:53 Summer asked Mar 4 at 6:42 Summer Summer 23 6 Is this any help gis.stackexchange.com/questions/220658/… ? if not gis.stackexchange.com/questions/62133/… might help. – Michael Stimson Mar 4 at 6:46 Thanks for answering but when I used gdal_translate, qgis showed that 'Error 4: Kayena.tif: No such file or directory". Would you know how to fi...
          Read more

          How many registers does an x86_64 CPU actually have?

          Image
          Clash Royale CLAN TAG #URR8PPP up vote 2 down vote favorite I am currently learning reverse engineering and am studying the flags register. I had in my mind that rflags was just another name for one of the 16 general purpose registers, for example rax or rbx . But it looks like rflags is actually an additional register. So that makes 17 registers in total... how many more could there be? I have spent at least an hour on this and found numerous different answers. The best answer so far is this, which says that there are 40 registers in total. 16 General Purpose Registers 2 Status Registers 6 Code Segment Registers 16 SSE Registers 8 FPU/MMX Registers But if I add that up, I get 48. Could anybody provide an official answer on how many registers an x86_64 CPU has (e.g. an Intel i7). Additionally, I have seen references to 'hardware' and 'architectural' registers. What are those registers and how many are there? register x86-64 share | improve this...
          Read more