[j-nsp] Show task accounting

[Hyunseog Ryu]

You can also use "show chassis routing-engine" to see CPu util for RE.

Hyun


av srikant wrote:
> Thanks for the information.
> 
> So basically to calculate the CPU utilization of the RE at any point of 
> time , the best way is to go inside the shell , then execute the "top" 
> command.
> 
> Correct me if i am wrong
> 
> Regards,
> Srikant
> 
>> From: Lars Erik Gullerud <lerik at nolink.net>
>> To: av srikant <srikant_av at hotmail.com>
>> CC: juniper-nsp at puck.nether.net
>> Subject: Re: [j-nsp] Show task accounting
>> Date: Wed, 29 Dec 2004 17:30:00 +0100
>>
>> On Wed, 2004-12-29 at 15:23, av srikant wrote:
>> > Dear All,
>> >
>> > I came to know that "show task accounting " in Juniper is same as 
>> "show proc
>> > cpu" in Cisco Routers. I get the below output using the "show task
>> > accounting " command.  My query is that what does the Columns such 
>> as user
>> > time, system time and longest run actually mean? Where can i find 
>> out which
>> > task is consuming what amount of the CPU ?
>>
>> First of all, since JunOS is based on FreeBSD, user/system time
>> corresponds to the processor states on a BSD system, i.e. time spent in
>> userland (the process itself doing work) and time spent "in-kernel"
>> performing kernel tasks relating to this process. I'm sure you can
>> google up plenty of good explanations on this particular subject.
>>
>> That being said, there are plenty of ways to see CPU usage and other
>> interesting data on your Routing Engine in addition to accounting. Being
>> FreeBSD-based, most normal commands you would use on a UNIX system are
>> available from a "start shell", then using ps, top, vmstat, etc. to give
>> you any information you need (personally, I tend to drop to a shell and
>> use "top").
>>
>> You can access most of these from within the CLI as well - mostly using
>> "show system processes" with various options. E.g. "show system
>> processes detail" seem to correspond more or less to doing a "ps -axl"
>> in the shell. "show system processes extensive" gives you the output of
>> "top -b" (basically a snapshot view of the top output). But again -
>> dropping to a shell and using top in interactive mode is my own
>> preferred way of judging what uses CPU-time on the RE.
>>
>> /leg
>>
>>
> 
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