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    Memory Usage

    Scheduled Pinned Locked Moved General pfSense Questions
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    • T
      tomli
      last edited by

      Hi all,

      My pfsense used 90% of memory (Total 32G). I disconnect it from my network for few days ago (No Traffic, NO connection, low state table 7 records only, low CPU). I still see the 90% memory usage in PFsense. How can I free the inactive/unuse memory? . I don't want to reboot the pfsnese to solve the issue.

      Please advise.

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      • C
        cmb
        last edited by

        That's a ton of memory usage. What does Diag>System Activity show?

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        • T
          tomli
          last edited by

          last pid: 49136;  load averages:  0.02,  0.11,  0.22  up 0+17:57:36    02:43:18
          183 processes: 13 running, 113 sleeping, 57 waiting

          Mem: 21M Active, 67M Inact, 31G Wired, 322M Buf, 467M Free
          Swap: 64G Total, 64G Free

          PID USERNAME PRI NICE  SIZE    RES STATE  C  TIME    WCPU COMMAND
            11 root    155 ki31    0K  192K CPU8    8  17.9H 100.00% [idle{idle: cpu8}]
            11 root    155 ki31    0K  192K CPU7    7  17.9H 100.00% [idle{idle: cpu7}]
            11 root    155 ki31    0K  192K CPU2    2  17.8H 100.00% [idle{idle: cpu2}]
            11 root    155 ki31    0K  192K CPU3    3  17.8H 100.00% [idle{idle: cpu3}]
            11 root    155 ki31    0K  192K CPU10  10  17.8H 100.00% [idle{idle: cpu10}]
            11 root    155 ki31    0K  192K CPU11  11  17.8H 100.00% [idle{idle: cpu11}]
            11 root    155 ki31    0K  192K CPU0    0  17.8H 100.00% [idle{idle: cpu0}]
            11 root    155 ki31    0K  192K CPU9    9 812:51 100.00% [idle{idle: cpu9}]
            11 root    155 ki31    0K  192K CPU4    4 613:28 100.00% [idle{idle: cpu4}]
            11 root    155 ki31    0K  192K CPU1    1  17.9H  99.76% [idle{idle: cpu1}]
            11 root    155 ki31    0K  192K CPU5    5  17.9H  99.27% [idle{idle: cpu5}]
            11 root    155 ki31    0K  192K RUN    6  17.9H  99.27% [idle{idle: cpu6}]
          47144 root      21    0  233M 38180K piperd  1  0:00  0.10% php-fpm: pool lighty (php-fpm)
              0 root    -16    0    0K  544K swapin  8  53.5H  0.00% [kernel{swapper}]
            12 root    -92    -    0K  912K WAIT    4 464:36  0.00% [intr{irq16: bge0}]
              0 root    -92    0    0K  544K -      9 264:32  0.00% [kernel{em0 que}]
              0 root    -92    0    0K  544K -      11  5:38  0.00% [kernel{em2 que}]
              0 root    -92    0    0K  544K -      10  5:38  0.00% [kernel{em1 que}]

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          • C
            cmb
            last edited by

            Hm, most all in wired. Doesn't show the process(es) there responsible for any significant memory usage. Via SSH, run:

            top -o res -SH
            

            and post that output, that should show the culprit.

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            • T
              tomli
              last edited by

              Hi,

              $ top -o res -SH
              last pid: 93452;  load averages:  2.46,  2.03,  1.05  up 0+01:33:06    05:41:19
              181 processes: 13 running, 111 sleeping, 57 waiting

              Mem: 30M Active, 54M Inact, 30G Wired, 152M Buf, 696M Free
              Swap: 64G Total, 64G Free

              PID USERNAME PRI NICE  SIZE    RES STATE  C  TIME    WCPU COMMAND
              27968 root      23    0  238M 39592K uwrlck  8  0:00  0.00% php-fpm{php-fpm}
              27968 root      20    0  238M 39592K kqread 10  0:00  0.00% php-fpm{php-fpm}
              71376 root      21    0  233M 37552K piperd  5  0:01  0.49% php-fpm
                240 root      20    0  229M 21884K kqread  0  0:00  0.00% php-fpm
              8996 root      20    0 28344K 18120K select  5  0:41  3.56% ntpd{ntpd}
              8996 root      20    0 28344K 18120K kqread  8  0:00  0.00% ntpd{ntpd}
              28501 root      20    0 62848K 17036K select  6  0:39  2.39% bsnmpd
              18813 root      20    0 85556K  5708K kqread  3  0:00  0.00% lighttpd
              6052 root      52    0 32424K  5196K select  9  0:00  0.00% sshd
                273 root      20    0 13160K  4448K select  4  0:00  0.00% devd
              28825 root      20    0 17476K  3368K ttyin  5  0:00  0.00% tcsh
              93452 root      21    0 21988K  2948K CPU10  10  0:00  0.00% top
              11467 root      20    0 16804K  2788K bpf    6  1:01  2.59% filterlog
              26420 root      21    0 43568K  2660K wait    8  0:00  0.00% login
              26522 root      21    0 17136K  2628K wait    8  0:00  0.00% sh
              26830 root      52    0 17136K  2516K wait    4  0:00  0.00% sh
                256 root      41  20 19024K  2492K kqread  4  0:00  0.00% check_reload_status
              30428 root      52  20 17136K  2408K wait    2  0:00  0.00% sh

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