Problems with netgraph

[Julian Elischer]

Oleksandr Samoylyk wrote:
> David DeSimone wrote:
>> Julian Elischer <julian at elischer.org> wrote:
>>> unfortunatly I've been totally  ignoring this thread because it said
>>> "trouble with em" in the topic..
>>> If you'd said "trouble with mpd" then maybe I'd have looked earlier..
>>
>> In the poster's defense, the only symptom that started this was this
>> info from ps:
>>
>>   PID USERNAME  THR PRI NICE   SIZE    RES STATE  C   TIME   WCPU COMMAND
>>    29 root        1 -68    -     0K    16K CPU5   5 196:41 100.00% em0 
>> taskq
>>
>> So tracking it down to mpd has been a process of elimination in figuring
>> out why packets absorb so much CPU.
>>
> 
> Here is a result of profiling:
> 
> http://lists.freebsd.org/pipermail/freebsd-net/2008-May/017901.html
> 


                  0.00        0.00      16/1643247     igmp_input [833]
                  0.03        0.01     614/1643247     icmp_input [272]
                 93.07       17.27 1642617/1643247     encap4_input [9]
[10]    49.8   93.10       17.27 1643247         rip_input [10]
                 14.26        0.88  600796/749987      _mtx_lock_sleep 
[21]
                  0.16        1.70 1643863/1643863     raw_append [93]
                  0.00        0.24   36345/176995      _mtx_unlock_sleep
[114]
                  0.01        0.00 1643863/5117962     jailed [278]
                  0.00        0.00    1292/1843        m_copym [666]
                  0.00        0.00     676/8214484     m_freem [34]



50% of time in rip_input???

that's unexpected.. what is the traffic?

also:

I see no netgraph  in the profile at all.
did you statically compile it all in at compile time? (you should if 
you want to see it)