Date: Tue, 19 Feb 2002 19:24:09 +0100 From: Marcel de Vries <mdevries@haveityourway.nl> To: freebsd-net@freebsd.org Subject: RE: network buffer problem -/- natd Message-ID: <5.1.0.14.2.20020219192110.01f45e48@outshine> In-Reply-To: <MPENKFCCIIDAJKJJOLBHGEKJCIAA.tariq@inty.net> References: <5.1.0.14.2.20020219154939.00bb52d8@outshine>
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After 4 hours of pinging and listening to a shoutcast stream natd rised to his state of eating 34% proctime (top) Connection timed out, did a restart of mpd and everything is running normal agian. Bugs me. Grtz, Marcel At 15:40 19-02-2002 +0000, you wrote: > i too am currently looking into natd - it seems to eat more cpu as the >number of connections it handles goes uip - not just the throughput. > > - i'm not an expert but truss, strace and grof show that most of the time >is spent in sendto() ... > > ... i find this odd becuase recvfrom seems not to be so intensive. > > ps - can anyone tell me if the following assumption is correct: > > * if gprof, strace, etc show most of the time spent in sendto() > then it immediately follows that this is what is using > CPU time? > > > * i know its a bit off topic but i could make a syscall which > simpy sleeps, > so shows up as taking time but isn;t doing much really? > >am i right? > > >intY has automatically scanned this email with Sophos Anti-Virus >(www.inty.com) > > > >To Unsubscribe: send mail to majordomo@FreeBSD.org >with "unsubscribe freebsd-net" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message
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