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    PFsense SLow and High CPU

    Scheduled Pinned Locked Moved General pfSense Questions
    23 Posts 6 Posters 5.2k Views
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    • D Offline
      doktornotor Banned
      last edited by

      The right command is to use the fine console menu that's there (both via SSH and on physical console).

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      • K Offline
        karlzre
        last edited by

        Hi,

        I've restart the 2 still 100% cpu

        last pid: 70334;  load averages:  7.58,  6.90,  7.28    up 3+11:37:44  12:41:02
        172 processes: 9 running, 135 sleeping, 28 waiting
        CPU: 38.2% user,  0.2% nice, 34.7% system, 26.9% interrupt,  0.0% idle
        Mem: 111M Active, 211M Inact, 119M Wired, 74M Buf, 1531M Free
        Swap: 4096M Total, 4096M Free
        
          PID USERNAME   PRI NICE   SIZE    RES STATE   C   TIME    WCPU COMMAND
           12 root       -92    -     0K   224K WAIT    0 235:41  24.27% [intr{irq259:
        49598 root        45    0 86728K 35944K RUN     0   2:07  19.68% /usr/local/bin
        93820 root        39    0 86728K 35680K accept  1   1:03  15.97% /usr/local/bin
           12 root       -92    -     0K   224K WAIT    0 239:00  11.67% [intr{irq262:
        10691 root        29    0 86728K 35716K accept  1   1:03  11.38% /usr/local/bin
         5449 root        46    0 82632K 28476K accept  1   0:05   9.57% /usr/local/bin
        41372 root        42    0 86728K 35724K accept  1   2:20   7.76% /usr/local/bin
        49355 root        74    0 86824K 33060K RUN     0   0:27   7.28% php-fpm: pool
        14204 root        74    0 86824K 33940K RUN     1   0:30   6.88% php-fpm: pool
        54828 root        52    0 86824K 33828K piperd  0   0:27   6.40% php-fpm: pool
        96397 root        52    0 86728K 33052K sysctl  0   0:04   6.40% /usr/local/bin
        48718 root        52    0 82632K 28496K accept  0   0:36   5.37% /usr/local/bin
         2200 root        52    0 86824K 35476K piperd  1   0:35   5.08% php-fpm: pool
        45926 root        25    0 17248K  6644K kqread  1   0:03   4.39% /usr/local/sbi
        29995 nobody      22    0 11400K  4020K select  1   2:35   3.47% /usr/local/sbi
        27091 root        26    0 82632K 28492K accept  0   0:09   2.49% /usr/local/bin
        54198 admin-itp   20    0 11384K  2724K CPU1    1   0:00   0.59% top -aSH
        [/code]
        
        
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        • D Offline
          doktornotor Banned
          last edited by

          The output with truncated paths is completely useless.

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          • K Offline
            karlzre
            last edited by

            Sorry

            last pid: 78757;  load averages:  7.10,  7.19,  7.14                                                                                                           up 3+11:53:35  12:56:53
            167 processes: 9 running, 132 sleeping, 26 waiting
            CPU: 38.8% user,  0.0% nice, 44.4% system, 16.2% interrupt,  0.6% idle
            Mem: 143M Active, 202M Inact, 119M Wired, 85M Buf, 1509M Free
            Swap: 4096M Total, 4096M Free
            
              PID USERNAME   PRI NICE   SIZE    RES STATE   C   TIME    WCPU COMMAND
            26911 root        49    0 82632K 28484K accept  1   2:01  25.59% /usr/local/bin/php
               12 root       -92    -     0K   224K CPU0    0 241:42  21.78% [intr{irq262: em2:rx 0}]
            90617 root        33    0 82632K 28484K CPU0    0   1:48  17.77% /usr/local/bin/php
               12 root       -92    -     0K   224K CPU0    0 238:40  14.06% [intr{irq259: em1:rx 0}]
            14204 root        75    0 99112K 50224K RUN     1   1:40  11.47% php-fpm: pool lighty (php-fpm)
             2200 root        75    0   101M 50364K RUN     1   1:50  10.69% php-fpm: pool lighty (php-fpm)
            93820 root        40    0 86728K 35728K accept  1   1:24  10.16% /usr/local/bin/php
            54828 root        75    0   101M 51096K RUN     0   1:42   9.57% php-fpm: pool lighty (php-fpm)
            49355 root        52    0 99112K 47252K nanslp  1   1:40   9.38% php-fpm: pool lighty (php-fpm)
             5449 root        27    0 82632K 28484K accept  1   1:40   7.76% /usr/local/bin/php
            10691 root        33    0 86728K 35732K accept  1   1:26   5.66% /usr/local/bin/php
            48718 root        52    0 82632K 28496K accept  1   1:55   1.46% /usr/local/bin/php
            29995 nobody      21    0 11400K  4020K select  1   2:54   1.27% /usr/local/sbin/dnsmasq --all-servers --rebind-localhost-ok --stop-dns-rebind --dns-forward-max=5000 --cache-size=100
            54198 admin-itp   21    0 11384K  2908K CPU1    1   0:11   1.17% top -aSH
            89404 root        26    0 82632K 28488K accept  0   0:42   0.49% /usr/local/bin/php
               12 root       -92    -     0K   224K WAIT    0  12:20   0.39% [intr{irq260: em1:tx 0}]
            47366 root        20    0 13148K  5484K kqread  0   0:06   0.20% /usr/local/sbin/lighttpd -f /var/etc/lighty-test-CaptivePortal.conf
            

            We also have a lot of these logs, don't know if it's linked:

            Sep 28 12:52:42	lighttpd[47366]: (connections.c.137) (warning) close: 21 Connection reset by peer
            Sep 28 12:52:51	lighttpd[47366]: (connections.c.137) (warning) close: 13 Connection reset by peer
            Sep 28 12:53:05	lighttpd[47366]: (connections.c.137) (warning) close: 13 Connection reset by peer
            Sep 28 12:53:15	lighttpd[47366]: (connections.c.137) (warning) close: 15 Connection reset by peer
            Sep 28 12:53:46	lighttpd[47366]: (connections.c.137) (warning) close: 15 Connection reset by peer
            Sep 28 12:53:49	lighttpd[47366]: (connections.c.137) (warning) close: 18 Connection reset by peer
            Sep 28 12:54:11	lighttpd[47366]: (connections.c.137) (warning) close: 18 Connection reset by peer
            Sep 28 12:54:35	lighttpd[47366]: (connections.c.137) (warning) close: 21 Connection reset by peer
            Sep 28 12:54:57	lighttpd[47366]: (connections.c.137) (warning) close: 14 Connection reset by peer
            Sep 28 12:55:02	lighttpd[47366]: (connections.c.137) (warning) close: 16 Connection reset by peer
            Sep 28 12:55:15	lighttpd[47366]: (connections.c.137) (warning) close: 14 Connection reset by peer
            Sep 28 12:55:33	lighttpd[47366]: (connections.c.137) (warning) close: 14 Connection reset by peer
            Sep 28 12:55:54	lighttpd[47366]: (connections.c.137) (warning) close: 13 Connection reset by peer
            Sep 28 12:55:57	lighttpd[47366]: (connections.c.137) (warning) close: 14 Connection reset by peer
            Sep 28 12:56:21	lighttpd[47366]: (connections.c.137) (warning) close: 22 Connection reset by peer
            Sep 28 12:56:23	lighttpd[47366]: (connections.c.137) (warning) close: 18 Connection reset by peer
            Sep 28 12:57:05	lighttpd[47366]: (connections.c.137) (warning) close: 16 Connection reset by peer
            Sep 28 12:57:18	lighttpd[47366]: (connections.c.137) (warning) close: 14 Connection reset by peer
            
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            • D Offline
              doktornotor Banned
              last edited by

              Disable the Captive portal thing.

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              • K Offline
                karlzre
                last edited by

                Do you thin kthe Platform is not powerfull enough ? ( we have 100-150 users)

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                • H Offline
                  heper
                  last edited by

                  also might try

                  sysctl dev.em.0.debug=1
                  ```from console
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                  • D Offline
                    doktornotor Banned
                    last edited by

                    karlzre - Apparently not in your case when idiots/broken mobile shit keeps hammering the CP over and over again. (Other than that, you told us exactly NOTHING about your "platform").  And yeah, there's also something very broken about the NICs. Did you enable some nonsense like polling there?

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                    • K Offline
                      karlzre
                      last edited by

                      also might try
                      Code: [Select]
                      sysctl dev.em.0.debug=1
                      from console

                      dev.em.0.debug: -1 -> -1
                      
                      
                      Intel(R) Atom(TM) CPU N270 @ 1.60GHz
                      Current: 800 MHz, Max: 1600 MHz
                      2 CPUs: 1 package(s) x 1 core(s) x 2 HTT threads
                      

                      Memory usage
                      13% of 2006 MB
                      SWAP usage
                      0% of 4096 MB
                      Disk usage
                      / (ufs): 2% of 23G
                      /var/run (ufs in RAM): 3% of 3.4M

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                      • K Offline
                        karlzre
                        last edited by

                        Did you enable some nonsense like polling there?

                        Enable device polling is disabled.

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                        • D Offline
                          doktornotor Banned
                          last edited by

                          @karlzre:

                          Intel(R) Atom(TM) CPU N270 @ 1.60GHz
                          Current: 800 MHz, Max: 1600 MHz
                          2 CPUs: 1 package(s) x 1 core(s) x 2 HTT threads
                          

                          This CPU is just old slow POS, but that thing is running at half the freq it's spec'ed for with 100% CPU usage?  :o Try fiddling with the powerd settings.

                          Also, post some information about the NICs.

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                          • S Offline
                            SplineZ
                            last edited by

                            @doktornotor:

                            This CPU is just old slow POS, but that thing is running at half the freq it's spec'ed for with 100% CPU usage?  :o Try fiddling with the powerd settings.

                            Also, post some information about the NICs.

                            I have a bit more power behind my box and Ive run into the same thing.. Is powerd on minimum capable of causing this issue?

                            my machine gets loaded up with 60mbits of torrent/netflix traffic (that is my connection speed) from time to time and I see that [kernel{em0 taskq}] and [intr{swi5: fast taskq}] tasks taking up the majority of the available CPU.. Polling is turned off..

                            This machine as built from spare parts that I had laying around is it possible that im just running into a limitation with the hardware?

                            IC2D 2.13ghz, Asus OEM shitty mobo, 3gb ram, Intel Pro/1000 Legacy (external), Realtek 8169 (Internal)

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                            • D Offline
                              doktornotor Banned
                              last edited by

                              @SplineZ:

                              I have a bit more power behind my box and Ive run into the same thing.. Is powerd on minimum capable of causing this issue?

                              You need to fiddle with whatever settings are available there. People here mentioned boxes where CPU is never run at full freq unless powerd is enabled somehow. Sure if set @minimum, that's a good candidate.

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                              • S Offline
                                Stewart
                                last edited by

                                You may also want to look at https://forum.pfsense.org/index.php?topic=59028.0 to remove those messages from the log and help cut down the noise.  Looks like they may not mean anything.

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                                • S Offline
                                  SplineZ
                                  last edited by

                                  @doktornotor:

                                  @SplineZ:

                                  I have a bit more power behind my box and Ive run into the same thing.. Is powerd on minimum capable of causing this issue?

                                  You need to fiddle with whatever settings are available there. People here mentioned boxes where CPU is never run at full freq unless powerd is enabled somehow. Sure if set @minimum, that's a good candidate.

                                  Interestingly enough, I switched it to adaptive and the overall load on the machine has lowered a HUGE amount. Lets say from 6.0 to under 0.7-0.5..  Kind of ironic that the feature meant to save energy is actually causing an increase… (in this situation)

                                  Seriously, Turn on the profile "minimum" and max out your connection, your load will raise slowly.. turn it to Adaptive and watch it lower almost immediately. "[kernel{em0 taskq}]" is the task using all the cpu..

                                  
                                  With "Minimum" power setting on powerd
                                  
                                  last pid: 11607;  load averages:  3.36,  1.79,  0.99 
                                    PID USERNAME      PRI NICE   SIZE    RES STATE   C   TIME    WCPU COMMAND
                                      0 root          -92    0     0K   192K CPU0    0 647:46  79.49% [kernel{em0 taskq}]
                                     12 root          -56    -     0K   272K WAIT    1 432:38  51.46% [intr{swi5: fast taskq}]
                                  87987 root          100   20 25160K  6464K CPU0    0   0:04  26.27% /sbin/pfctl -ss
                                     11 root          155 ki31     0K    32K RUN     1 390.8H  15.97% [idle{idle: cpu1}]
                                     11 root          155 ki31     0K    32K RUN     0 385.3H  11.18% [idle{idle: cpu0}]
                                  
                                  With "HiAdaptive" power setting on powerd
                                  
                                  last pid: 61673;  load averages:  0.53,  1.23,  0.89   
                                       PID USERNAME      PRI NICE   SIZE    RES STATE   C   TIME    WCPU COMMAND
                                     11 root          155 ki31     0K    32K RUN     1 390.9H  97.56% [idle{idle: cpu1}]
                                     11 root          155 ki31     0K    32K CPU0    0 385.3H  83.98% [idle{idle: cpu0}]
                                      0 root          -92    0     0K   192K -       0 648:19  10.16% [kernel{em0 taskq}]
                                     12 root          -56    -     0K   272K WAIT    1 433:00   5.66% [intr{swi5: fast taskq}]
                                     12 root          -92    -     0K   272K WAIT    1  58:56   0.98% [intr{irq19: em0 uhci1}]
                                     12 root          -92    -     0K   272K WAIT    0  40:54   0.78% [intr{irq16: re0 uhci3}]
                                  
                                  

                                  No other changes were made on the machine other then fiddling with the powerd settings..  I never would have thought to look there.. Kudos and thanks!

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                                  • H Offline
                                    Harvy66
                                    last edited by

                                    You're misunderstanding what're being reported. Load is relative. If your CPU is running at 100mhz, then it's not hard to reach 75% usage. The reason "load" is high when using minimum is because the CPU is being down-clocked, you are saving power.

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