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    CPU usage high but no process that´s hogging up, just 0.0% idle

    Scheduled Pinned Locked Moved General pfSense Questions
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    • ?
      Guest
      last edited by

      I guess the case is that it´s low cpu just want to make sure that´s the case:)

      it´s a p3 933mhz with 512mb ram and running pfsense 1.2

      when running torrent with dl ~4-5mB/sec i get this high load avarege and ~0-10&idle
      thought 933mhz would be enuf for this but i guess it´s not.

      Does that meen it´s the system itself that requires all the system resourses and that i need faster cpu?

      here is a snap from "top"
      last pid:  8240;  load averages: 12.53,  9.27,  5.03                                                       up 15+12:33:52  07:58:25
      54 processes:  9 running, 43 sleeping, 2 zombie
      CPU states:  1.0% user,  1.0% nice,  4.9% system, 93.1% interrupt,  0.0% idle
      Mem: 91M Active, 12M Inact, 58M Wired, 58M Buf, 332M Free
      Swap: 1024M Total, 1024M Free

      EDIT1: roughly 1500states

      CPU usage is so high that i loose connection with ssh(from external place) and regaining access when dl is complete

      ideas?

      /Fredde

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      • E
        eri--
        last edited by

        I would suggest upgrading to 1.2.1. Probably something wrong or nics are generating to much interrupts.

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        • W
          wallabybob
          last edited by

          The 93.1% interrupt time suggests your system is overloaded. Interrupt sharing could contribute some of that.

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          • J
            Juve
            last edited by

            YEs, too much interruption requests. Checks your NICs.

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            • W
              wallabybob
              last edited by

              Whats the output from shell command vmstat -i

              That will help identify whats contributing to the interrupt load.

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              • N
                nocer
                last edited by

                Hello,

                As other members say, your cpu hogged by way too many interrupts coming in/out, looks like for every single packet. As far as there's no hardware issues around, then it's time that you definitely need to consider swapping a nic which has polling capability, or enable polling for the device if already have those. I dunno if 1.2 gui allows you configure polling then use shell. Moving to 1.2.1/1.3 is also a good idea.

                cheers,

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                • ?
                  Guest
                  last edited by

                  tnx for the answers
                  i now have moved to 1.2.1 (nice with vlan working on 1.2.1)
                  side note, on install i noticed it was a 733mhz and not 933

                  I was able to dl much faster and the box did´t disconnect me eather
                  Numbers from "top" was roughly the same..maby a bit lower but twice the speed(9mB/sec) on download

                  So i guess that it is the cind of performance you can get from the hw i have now.

                  /Fredde

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                  • W
                    wallabybob
                    last edited by

                    I second the suggestion you try polling. It will probably help squeeze a bit more out of your machine.

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