Kernel parameters

From: Himanshu Khona (himanshu.khona_at_patni.com)
Date: 08/19/03

  • Next message: Himanshu Khona: "Summary Tru64 unix ver 4.0D" 
    Date: Tue, 19 Aug 2003 16:51:39 +0530
To: tru64-unix-managers@ornl.gov

    Hi all,

    I am new to Dec unix, i need to know if the kernel parameters as below have
    anything obviously wrong in them.:

    ipc:
            msg-mnb = 32768
            sem-mni = 1536
            msg-mni = 768
            msg-tql=512
            shm-max = 2147483647
            shm-mni = 2048
            num-of-sems = 512
            shm-seg = 512
            sem-ume = 400
            sem-opm = 400
            sem-msl = 1600
            ssm-threshold = 0

            max-kernel-ports=93911
            port-hash-max-num=4695550
            port-reserved-max-num=24837
    proc:
            open-max-soft = 4096
            open-max-hard = 4096
            max-proc-per-user = 512

            max-threads-per-user=512
            per-proc-stack-size=4294967296
            max-per-proc-data-size=4398046511104
            maxusers=1024
            task-max=8213
            thread-max=16424
            num-wait-queues=1024
            num-timeout-hash-queues=1024
            max-per-proc-address-space=4398046511104
            per-proc-address-space=4398046511104
            max-per-proc-stack-size=4294967296
            per-proc-data-size=4398046511104
    psdc:
            Subsystem_Description = psdc device driver
            Module_Type = Dynamic
            Module_Path = /subsys/psdc.mod
            Module_Config_Name = psdc
            Device_Dir = /dev
            Device_Char_Major = any
            Device_Char_Minor = 0
            Device_Char_Files = psdc
            Device_User = root
            Device_Group = 0

    vfs:
            bufcache = 3
            max-vnodes = 16000
            min-free-vnodes = 3500
            fifo-do-adaptive = 0

            name-cache-size=22853
            nvnode=10388
    vm:
            ubc-maxpercent = 10

            vm-max-rdpgio-kluster=16384
            vm-maxvas=4398046511104
            ubc-minpercent=5
            ubc-borrowpercent=8
            vm-ubcseqstartpercent=7
            gh-fail-if-no-mem=0
    pts:
            nptys = 1024

    net:
            netisrthreads=4

    rt:
            aio-max-num=4096
            aio-task-max-num=2048
            aio-max-percent=5
            aio-max-retry=20
            aio-retry-scale=5
            sigqueue-max-num=128

    generic:
            insecure-bind=1

    Pls let me know if any parameter in above can hamper system performance in
    anyway.

    Thanks in advance i shall summarize

    Regards
    Himanshu
    Man is a heroic bieng with his own happiness as
     moral purpose of life, with productive achievement
    as the noblest activity & reason as his only absolute

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