[j-nsp] Juniper High CPU Process Kqread

[a. rahman isnaini rst / netsoft]

Yap Richard,


It might be something missing in my routing config.
It's working fine.

thanks
a.r.isnaini rangkayo sutan

Richard A Steenbergen wrote:
> On Fri, Aug 15, 2008 at 08:59:17AM -0700, Kevin Oberman wrote:
>>> PID USERNAME PRI NICE  SIZE    RES STATE    TIME   WCPU    CPU COMMAND
>>>   2540 root       2   0   223M   220M kqread 268:48 44.34% 44.34% rpd
>> While I can't supply any answer, the thing that is eating up the CPU is
>> rpd, the main routing daemon. It is reading the kernel queue if it is in
>> the kqread state.
>>
>> To see the route processor using 44% of the CPU is rather high. Even on
>> our core routers I generally  only see 3-5% CPU use by rpd. It runs much
>> higher at time when there is routing instability.
> 
> Start with the basics:
> 
> set task accounting on
> show task accounting
> 
> And look for the thread with the really high cpu times:
> 
> BGP.0.0.0.0+179           18375163 1w5d 23:16:57.823    48:52.877        0.142
> 
> If you think there is some kind of persistent oscillation, you can monitor 
> the routing updates (from a shell) with:
> 
> rtsockmon -t rpd
> 
> Could be a bug too (I have a 100% cpu in rpd case that we're still trying 
> to diagnose), who knows. :)
>