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Message-ID: <CAL8zT=htsVAJotATQ5Lqidea5dEqCkZOgTT6t4-fFjjDzcVviw@mail.gmail.com> Date: Tue, 3 Jan 2012 08:36:46 +0100 From: Jean-Michel Hautbois <jhautbois@...il.com> To: Eric Dumazet <eric.dumazet@...il.com> Cc: netdev@...r.kernel.org Subject: Re: TCP communication for raw image transmission 2012/1/2 Jean-Michel Hautbois <jhautbois@...il.com>: > 2012/1/2 Jean-Michel Hautbois <jhautbois@...il.com>: >> 2012/1/2 Eric Dumazet <eric.dumazet@...il.com>: >>> Le lundi 02 janvier 2012 à 18:20 +0100, Jean-Michel Hautbois a écrit : >>> >>>> Here we go... >>>> >>>> Recv Send Send >>>> Socket Socket Message Elapsed >>>> Size Size Size Time Throughput >>>> bytes bytes bytes secs. 10^6bits/sec >>>> >>>> 87380 16384 16384 60.01 21.79 >>>> >>>> It is not very good, AFAIK. >>>> CPU usage is between 17 and 35%. >>> >>> Ouch... >>> >>> Better find out what is happening before even starting coding >>> anything... >>> >>> checkout "netstat -s" on both sender/receiver >> After looking to the results, I can't see really bad values or anything which would explain such a behaviour... Maybe is there some limits in the driver ? My board is a leopardboard (dm368). Any idea ? JM -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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