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j4350 very high memory

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  • 1.  j4350 very high memory

    Posted 09-10-2008 23:58

    Hello

     

    We are experiencing very high memory issue (90-95%). Only the ethernet interface is configured. Firstly run on JUNOS 8.2 and i have upgrated it to JUNOS 9.0R3 and currently downgrade it on JUNOS 8.5 R 1, but not see any changes in memory utalization. The memory is 256MB and the router is J4350. Thanks



  • 2.  RE: j4350 very high memory

    Posted 09-11-2008 00:23
    Can you paste the ouput of 'show system processes extensive'?


  • 3.  RE: j4350 very high memory

    Posted 09-11-2008 22:16

    ubl@KCICORE9b> show system processes extensive
    last pid:  7617;  load averages:  0.02,  0.03,  0.00  up 1+19:21:22    09:36:32
    89 processes:  2 running, 69 sleeping, 18 waiting

    Mem: 71M Active, 23M Inact, 115M Wired, 6696K Cache, 34M Buf, 23M Free
    Swap:


      PID USERNAME  THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
       11 root        1 171   52     0K    12K RUN     40.3H 93.99% idle
     4059 root        1  96    0   350M 96264K select 166:45  3.76% fwdd
     4099 root        1  96    0  4584K  3404K select   0:48  0.15% dcd
     4061 root        1  96    0  9312K  7908K select   7:41  0.00% isdnd
       12 root        1 -20 -139     0K    12K WAIT     4:31  0.00% swi7: clock sio
     4048 root        1  96    0 13428K  4304K select   0:34  0.00% chassisd
     4004 root        1  20    0     0K    12K rtl_gp   0:33  0.00% rtl_alloc
     4087 root        1   4    0 12000K  5156K kqread   0:32  0.00% rpd
     4014 root        1  96    0  1576K   824K select   0:25  0.00% bslockd
     4050 root        1  96    0  3336K  1360K select   0:20  0.00% craftd
     4049 root        1  96    0  2572K  1652K select   0:11  0.00% alarmd
       21 root        1 -68 -187     0K    12K WAIT     0:11  0.00% irq5: uhci0 uhci0*
     4058 root        1  96    0  3732K  1848K select   0:10  0.00% bfdd
       14 root        1 -40 -159     0K    12K WAIT     0:08  0.00% swi2: net
    ---(more)---
                        
         2 root        1  -8    0     0K    12K -        0:07  0.00% g_event
       44 root        1 -16    0     0K    12K -        0:07  0.00% schedcpu
     4003 root        1 -48 -167     0K    12K WAIT     0:07  0.00% swi0: +
       39 root        1 -16    0     0K    12K psleep   0:06  0.00% vmkmemdaemon
     5094 root        1  96    0  2740K  1952K select   0:05  0.00% dood
       45 root        1  -8    0     0K    12K mdwait   0:05  0.00% md0
       15 root        1 -16    0     0K    12K -        0:05  0.00% yarrow
     4056 root        1  96    0  2852K  1668K select   0:05  0.00% ppmd
        4 root        1  -8    0     0K    12K -        0:05  0.00% g_down
        3 root        1  -8    0     0K    12K -        0:04  0.00% g_up
     4098 root        1  96    0  5276K  2916K select   0:03  0.00% snmpd
       31 root        1  20    0     0K    12K syncer   0:03  0.00% syncer
     4088 root        1 111   15  4204K  2992K select   0:03  0.00% sampled
     3944 root        1  96    0  2520K  1676K select   0:03  0.00% eventd
     4086 root        1  96    0  4896K  2776K select   0:02  0.00% mib2d
        8 root        1 171   52     0K    12K pgzero   0:02  0.00% pagezero
     4090 root        1  96    0  2832K  1824K select   0:02  0.00% pppd
     4097 root        1  96    0  3600K  1848K select   0:02  0.00% pfed
       33 root        1 -16    0     0K    12K sdflus   0:02  0.00% softdepflush
     4089 root        1  96    0  4288K  2540K select   0:02  0.00% cosd
     4095 root        1  96    0  3780K  2380K select   0:02  0.00% dfwd
     4096 root        1  96    0  6460K  2884K select   0:01  0.00% kmd
     4094 root        1   4    0     0K    12K peer_s   0:01  0.00% peer proxy
    ---(more 45%)---
                        
      4046 root        1  96    0  1328K   532K select   0:01  0.00% watchdog
       24 root        1 -64 -183     0K    12K WAIT     0:01  0.00% irq14: ata0
       32 root        1  -4    0     0K    12K vlruwt   0:01  0.00% vnlru
       37 root        1 -16    0     0K    12K psleep   0:01  0.00% vmuncachedaemon
        9 root        1 -16    0     0K    12K psleep   0:00  0.00% bufdaemon
     4092 root        1  96    0  4836K  2856K select   0:00  0.00% httpd
     4051 root        1  96    0 16908K 13592K select   0:00  0.00% mgd
        1 root        1   8    0  1092K   636K wait     0:00  0.00% init
     4010 root        1   8    0  1452K   896K nanslp   0:00  0.00% cron
     4102 root        1   4    0     0K    12K peer_s   0:00  0.00% peer proxy
       92 root        1  -8    0     0K    12K mdwait   0:00  0.00% md1
     4064 root        1   8    0  1428K   744K nanslp   0:00  0.00% getty
        7 root        1 -16    0     0K    12K psleep   0:00  0.00% pagedaemon
     3932 root        1  96    0  1396K   728K select   0:00  0.00% usbd
     7614 ubl         1  96    0 11980K  7108K select   0:00  0.00% cli
       36 root        1   4    0     0K    12K pfeacc   0:00  0.00% if_pfe_listen
     4053 root        1  96    0  1820K  1004K select   0:00  0.00% inetd
     4093 root        1  96    0  5652K  2492K select   0:00  0.00% authd
     7615 root        1  96    0 16964K 13928K select   0:00  0.00% mgd
     7613 root        1   8    0  1672K  1264K wait     0:00  0.00% login
     7612 root        1  96    0  1712K  1264K select   0:00  0.00% telnetd
     4091 root        1 104    0  2660K  1440K select   0:00  0.00% mplsoamd
     3654 root        1  -8    0     0K    12K mdwait   0:00  0.00% md2
    ---(more 69%)---
                        
        22 root        1   8    0     0K    12K usbevt   0:00  0.00% usb0
     7617 root        1  97    0 22052K  1428K RUN      0:00  0.00% top
     3667 root        1  -8    0     0K    12K mdwait   0:00  0.00% md3
     4065 root        1   5    0  1432K   768K ttyin    0:00  0.00% getty
     3677 root        1  -8    0     0K    12K mdwait   0:00  0.00% md4
       27 root        1 -48 -167     0K    12K WAIT     0:00  0.00% swi0: sio
        0 root        1 -16    0     0K     0K WAIT     0:00  0.00% swapper
       38 root        1   4    0     0K    12K picacc   0:00  0.00% if_pic_listen
        6 root        1   8    0     0K    12K -        0:00  0.00% kqueue taskq
       40 root        1   8    0     0K    12K -        0:00  0.00% nfsiod 0
       35 root        1   4    0     0K    12K dump_r   0:00  0.00% kern_dump_proc
       34 root        1  98    0     0K    12K sleep    0:00  0.00% netdaemon
       41 root        1   8    0     0K    12K -        0:00  0.00% nfsiod 1
       42 root        1   8    0     0K    12K -        0:00  0.00% nfsiod 2
       43 root        1   8    0     0K    12K -        0:00  0.00% nfsiod 3
        5 root        1   8    0     0K    12K -        0:00  0.00% thread taskq
       23 root        1   8    0     0K    12K usbtsk   0:00  0.00% usbtask
       10 root        1 -16    0     0K    12K ktrace   0:00  0.00% ktrace
       16 root        1 -12 -131     0K    12K WAIT     0:00  0.00% swi9: task queue
       17 root        1 -12 -131     0K    12K WAIT     0:00  0.00% swi9: +
       18 root        1 -16 -135     0K    12K WAIT     0:00  0.00% swi8: +
       13 root        1 -24 -143     0K    12K WAIT     0:00  0.00% swi6: vm
       19 root        1 -28 -147     0K    12K WAIT     0:00  0.00% swi5: cambio
    ---(more 92%)---
                        
        29 root        1 -32 -151     0K    12K WAIT     0:00  0.00% swi4: ip6mismatch+
       28 root        1 -36 -155     0K    12K WAIT     0:00  0.00% swi3: ip6opt ipopt
       30 root        1 -44 -163     0K    12K WAIT     0:00  0.00% swi1: ipfwd
       20 root        1 -52 -171     0K    12K WAIT     0:00  0.00% irq11: isab0
       26 root        1 -60 -179     0K    12K WAIT     0:00  0.00% irq1: atkbd0
       25 root        1 -64 -183     0K    12K WAIT     0:00  0.00% irq15: ata1



  • 4.  RE: j4350 very high memory

    Posted 09-11-2008 00:26

    Hi

     

    This is not an easy question to answer as there is really very little information to work on. One of the obvious things that can cause high CPU utilization is the volume of traffic going through the box and possible what services that have been enabled.

     

    There is a less obvious one that might be relavant to you and that is if shaping is enabled. Please see KB11003 for more details on this topic.

     

    Anton


    #not
    #i
    #and
    #memory
    #came
    #know
    #nothing
    #else
    #only
    #carefully
    #int
    #about
    #configured.
    #taking
    #router
    #CPU
    #production
    #m
    #asking
    #read
    #my
    #if
    #is
    #ethernet
    #in


  • 5.  RE: j4350 very high memory

    Posted 09-11-2008 02:01
    i m not taking about cpu utalization i m asking about memory, if u read my thread carefully u will came to know that router is not in production and only ethernet int is configured. nothing else


  • 6.  RE: j4350 very high memory

    Posted 09-11-2008 03:40

    Hi Norman

     

    Sorry I did indeed read your question to quickly.  As xuzhengwei mentioned a copy of "show system processes" would be useful. Could you also include "show chassis routing-engine.

     

    If you look at the output below, I actullay have 59% utilization while my router is doing nothing. From the "show system processes" output however you can see the memory is defided between Active, In Active, Wired, Cache, Buffered and Free.

     

     

    adelport@epsom> show chassis routing-engine Routing Engine status: Temperature 32 degrees C / 89 degrees F CPU temperature 37 degrees C / 98 degrees F DRAM 768 MB Memory utilization 59 percent CPU utilization: User 1 percent Real-time threads 11 percent Kernel 88 percent Idle 0 percent Model RE-J.3 Serial ID BTRD44400174 Start time 2008-08-13 15:06:50 CEST Uptime 28 days, 21 hours, 41 minutes, 11 seconds Load averages: 1 minute 5 minute 15 minute 0.15 0.07 0.01 adelport@epsom> show system processes summary last pid: 12256; load averages: 0.13, 0.07, 0.01 up 28+21:41:52 12:37:22 90 processes: 3 running, 69 sleeping, 18 waiting Mem: 47M Active, 78M Inact, 304M Wired, 62M Cache, 69M Buf, 250M Free Swap: PID USERNAME THR PRI NICE SIZE RES STATE TIME WCPU COMMAND 11 root 1 171 52 0K 12K RUN 624.0H 91.80% idle 4037 root 1 132 0 516M 276M RUN 67.9H 6.15% fwdd adelport@epsom>

     

     

     



  • 7.  RE: j4350 very high memory

    Posted 09-11-2008 21:35

    Here are the outputs, kindly help and suggess what to do? Thanks

     

    ubl@KCICORE9b> show chassis routing-engine
    Routing Engine status:
        Temperature                 21 degrees C / 69 degrees F
        CPU temperature             44 degrees C / 111 degrees F
        DRAM                       256 MB
        Memory utilization          88 percent
        CPU utilization:
          User                     161 percent
          Real-time threads        214 percent
          Kernel                   -179 percent
          Idle                     -96 percent
        Model                          RE-J4350-2540
        Serial ID                      NR4759
        Start time                     2008-09-10 14:15:40 UTC
        Uptime                         1 day, 19 hours, 19 minutes, 23 seconds
        Load averages:                 1 minute   5 minute  15 minute
                                           0.01       0.02       0.00

     

     

     

    ubl@KCICORE9b> show system processes summary
    last pid:  7616;  load averages:  0.07,  0.04,  0.00  up 1+19:20:10    09:35:20
    89 processes:  3 running, 68 sleeping, 18 waiting

    Mem: 71M Active, 23M Inact, 115M Wired, 6696K Cache, 34M Buf, 23M Free
    Swap:


      PID USERNAME  THR PRI NICE   SIZE    RES STATE    TIME   WCPU COMMAND
       11 root        1 171   52     0K    12K RUN     40.2H 95.46% idle
     4059 root        1  96    0   350M 96264K RUN    166:40  2.44% fwdd



  • 8.  RE: j4350 very high memory
    Best Answer

    Posted 09-11-2008 22:58
    I think you 'd better to upgrade your JUNOS.  R1 is not recommended.
    Message Edited by xuzhengwei on 09-11-2008 11:24 PM


  • 9.  RE: j4350 very high memory

    Posted 09-11-2008 23:44

    Hi

     

    In your scenario I don't think you have anything to be worried about. You have 71M of Active memory. The rest of the memory are all in difference stages of being cached or aged out. Have a look at this article.

     

    http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/misc.html#TOP-FREEMEM



  • 10.  RE: j4350 very high memory

    Posted 09-14-2008 06:47

    AntonD, I also have a J-4350 and it arrived with JunOS 9.1 and the fwdd was using 7% of CPU all the time (router was idle, only I was connecting to it). I upgraded to JunOS 9.2R1 and now fwdd is using 14%-15% of CPU. I am just wondering, what does it do really? is this normal?



  • 11.  RE: j4350 very high memory

    Posted 09-15-2008 02:03

    Hi Yurtesen

     

    Unfortunately I don't have any answer for you on that one.