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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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    • 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.

        1 Reply Last reply Reply Quote 0
        • 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
            1 Reply Last reply Reply Quote 0
            • 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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