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mailman high loads

Discussion in 'E-mail Discussions' started by inalto, Jul 30, 2007.

  1. inalto

    inalto Member

    Joined:
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    Hello,

    I have a legitimate user that has a mailman mailing list with 3300 users.
    When it does some mailing list manipulation via cpanel (uploading users addresses), the cpu usage goes to very high levels for some minutes.
    The server (AMD 64 3000) is still responding even if the load average went to 95 or higher (mailman priority is 20, so very low)

    Now my question is, can i consider normal that cpu usage for a (quite small) 3300 email mailing list?

    when the high load arise the tasks goes from 111 to 350 or more.

    Can I limit tasks or cpu usage?

    Is there a memory problem (1Gb)?

    top - 09:25:14 up 36 days, 16:34, 1 user, load average: 78.77, 88.17, 67.47
    Tasks: 343 total, 124 running, 219 sleeping, 0 stopped, 0 zombie
    Cpu(s): 80.8% us, 18.9% sy, 0.0% ni, 0.0% id, 0.0% wa, 0.3% hi, 0.0% si
    Mem: 970512k total, 501460k used, 469052k free, 45828k buffers
    Swap: 2048248k total, 292492k used, 1755756k free, 74368k cached

    PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
    12035 mailman 15 0 45212 27m 2756 S 6.6 2.9 1:33.74 python2.4
    8760 mailman 20 0 9572 5844 2508 R 3.3 0.6 0:00.10 python2.4
    8798 mailman 20 0 10160 5756 2484 R 3.3 0.6 0:00.10 python2.4
    8768 mailman 20 0 9432 5864 2520 R 2.3 0.6 0:00.10 python2.4
    6344 nobody 17 0 30704 12m 1380 R 1.0 1.3 0:00.15 httpd
    7877 root 17 0 11764 2028 728 S 1.0 0.2 0:17.70 lfd
    8956 mailnull 18 0 9160 3936 2748 S 1.0 0.4 0:00.03 exim
    8964 mailnull 18 0 9092 3936 2748 S 1.0 0.4 0:00.03 exim
    8968 mailnull 18 0 9692 3936 2748 S 1.0 0.4 0:00.03 exim
    9045 mailnull 19 0 8688 3936 2748 S 1.0 0.4 0:00.03 exim
    9049 mailnull 19 0 8356 3920 2732 R 1.0 0.4 0:00.03 exim
    8952 mailnull 17 0 10152 3936 2748 S 0.7 0.4 0:00.02 exim
    8960 mailnull 18 0 9936 3936 2748 S 0.7 0.4 0:00.02 exim
    8976 mailnull 18 0 9440 3936 2748 S 0.7 0.4 0:00.02 exim
    8979 mailnull 18 0 8984 3936 2748 S 0.7 0.4 0:00.02 exim
     
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