Date: Wed, 07 May 2008 11:05:11 -0700 From: Julian Elischer <julian@elischer.org> To: Oleksandr Samoylyk <oleksandr@samoylyk.sumy.ua> Cc: freebsd-net@freebsd.org Subject: Re: Problems with netgraph Message-ID: <4821EF57.9010600@elischer.org> In-Reply-To: <48215706.8080508@samoylyk.sumy.ua> References: <48207C8B.4020509@samoylyk.sumy.ua> <48209BC4.5080602@elischer.org> <20080507040727.GA28983@verio.net> <48215706.8080508@samoylyk.sumy.ua>
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Oleksandr Samoylyk wrote: > David DeSimone wrote: >> Julian Elischer <julian@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)
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