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    Can some one explain CPU shares|Weight-sum|weight

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    cpu weight shares
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    • Emad RE
      Emad R @travisdh1
      last edited by

      @travisdh1

      DOcker uses this

      travisdh1T 1 Reply Last reply Reply Quote 0
      • travisdh1T
        travisdh1 @Emad R
        last edited by

        @emad-r said in Can some one explain CPU shares|Weight-sum|weight:

        @travisdh1

        DOcker uses this

        It might have some more bearing on the people actually writing code for containers, I'll grant them them that much. It still has nothing to do with someone actually running docker.

        Emad RE 1 Reply Last reply Reply Quote 0
        • scottalanmillerS
          scottalanmiller
          last edited by

          It would mean the weight of two cores, but doesn'tmean two cores.

          1 Reply Last reply Reply Quote 1
          • Emad RE
            Emad R @travisdh1
            last edited by

            @travisdh1

            5_1518712089039_2018-02-15 18_27_59-Containers - fedora.kvm.raid.png 4_1518712089038_2018-02-15 18_27_56-Containers - fedora.kvm.raid.png 3_1518712089038_2018-02-15 18_27_51-Containers - fedora.kvm.raid.png 2_1518712089037_2018-02-15 18_27_44-Containers - fedora.kvm.raid.png 1_1518712089037_2018-02-15 18_27_13-Containers - fedora.kvm.raid.png 0_1518712089036_2018-02-15 18_26_52-Containers - fedora.kvm.raid.png

            travisdh1T 1 Reply Last reply Reply Quote 0
            • travisdh1T
              travisdh1 @Emad R
              last edited by

              @emad-r said in Can some one explain CPU shares|Weight-sum|weight:

              @travisdh1

              5_1518712089039_2018-02-15 18_27_59-Containers - fedora.kvm.raid.png 4_1518712089038_2018-02-15 18_27_56-Containers - fedora.kvm.raid.png 3_1518712089038_2018-02-15 18_27_51-Containers - fedora.kvm.raid.png 2_1518712089037_2018-02-15 18_27_44-Containers - fedora.kvm.raid.png 1_1518712089037_2018-02-15 18_27_13-Containers - fedora.kvm.raid.png 0_1518712089036_2018-02-15 18_26_52-Containers - fedora.kvm.raid.png

              Everything your showing me is making me like Docker less and less. Wasn't it supposed to simplify the sysadmin side of things so that the developers could do both jobs?

              scottalanmillerS RomoR 2 Replies Last reply Reply Quote 0
              • scottalanmillerS
                scottalanmiller @travisdh1
                last edited by

                @travisdh1 said in Can some one explain CPU shares|Weight-sum|weight:

                @emad-r said in Can some one explain CPU shares|Weight-sum|weight:

                @travisdh1

                5_1518712089039_2018-02-15 18_27_59-Containers - fedora.kvm.raid.png 4_1518712089038_2018-02-15 18_27_56-Containers - fedora.kvm.raid.png 3_1518712089038_2018-02-15 18_27_51-Containers - fedora.kvm.raid.png 2_1518712089037_2018-02-15 18_27_44-Containers - fedora.kvm.raid.png 1_1518712089037_2018-02-15 18_27_13-Containers - fedora.kvm.raid.png 0_1518712089036_2018-02-15 18_26_52-Containers - fedora.kvm.raid.png

                Everything your showing me is making me like Docker less and less. Wasn't it supposed to simplify the sysadmin side of things so that the developers could do both jobs?

                No, Docker isn't for system admins at all. It's just for devs (by design and intent.)

                travisdh1T 1 Reply Last reply Reply Quote 0
                • RomoR
                  Romo @travisdh1
                  last edited by Romo

                  It is not really needed to tinker with CPU priorities unless you really, really know what you are doing.

                  Setting CPU scheduling and priorities on docker containers is just like doing it on any other Linux process it is just tinkering with CFS scheduler which is the Linux Kernel default scheduler.

                  So basically, do you set CPU schedules, limits and priorites for any other linux process? Most probably the answer will be no because you let the kernel and its default scheduler handle things without worrying about them. But if you know what you are doing and need those kinds of kernel feature go ahead and tinker with them.

                  We just always need to remember, Docker container are not VMS

                  Edit:
                  Right from the docker documentation:
                  alt text

                  Emad RE 1 Reply Last reply Reply Quote 2
                  • momurdaM
                    momurda
                    last edited by momurda

                    You can do this same sort of thing in VMWare. In fact it is easier to see the effects here
                    0_1518717879176_fd1420ae-e0c7-48c5-8e83-49b9eb5ab0a0-image.png

                    1 Reply Last reply Reply Quote 0
                    • Emad RE
                      Emad R @Romo
                      last edited by

                      @romo said in Can some one explain CPU shares|Weight-sum|weight:

                      It is not really needed to tinker with CPU priorities unless you really, really know what you are doing.

                      Setting CPU scheduling and priorities on docker containers is just like doing it on any other Linux process it is just tinkering with CFS scheduler which is the Linux Kernel default scheduler.

                      So basically, do you set CPU schedules, limits and priorites for any other linux process? Most probably the answer will be no because you let the kernel and its default scheduler handle things without worrying about them. But if you know what you are doing and need those kinds of kernel feature go ahead and tinker with them.

                      We just always need to remember, Docker container are not VMS

                      Edit:
                      Right from the docker documentation:
                      alt text

                      got it, keep it as 1024 then.

                      1 Reply Last reply Reply Quote 0
                      • travisdh1T
                        travisdh1 @scottalanmiller
                        last edited by

                        @scottalanmiller said in Can some one explain CPU shares|Weight-sum|weight:

                        @travisdh1 said in Can some one explain CPU shares|Weight-sum|weight:

                        @emad-r said in Can some one explain CPU shares|Weight-sum|weight:

                        @travisdh1

                        5_1518712089039_2018-02-15 18_27_59-Containers - fedora.kvm.raid.png 4_1518712089038_2018-02-15 18_27_56-Containers - fedora.kvm.raid.png 3_1518712089038_2018-02-15 18_27_51-Containers - fedora.kvm.raid.png 2_1518712089037_2018-02-15 18_27_44-Containers - fedora.kvm.raid.png 1_1518712089037_2018-02-15 18_27_13-Containers - fedora.kvm.raid.png 0_1518712089036_2018-02-15 18_26_52-Containers - fedora.kvm.raid.png

                        Everything your showing me is making me like Docker less and less. Wasn't it supposed to simplify the sysadmin side of things so that the developers could do both jobs?

                        No, Docker isn't for system admins at all. It's just for devs (by design and intent.)

                        That was kinda my point.

                        1 Reply Last reply Reply Quote 0
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