netdev - Re: TCP communication for raw image transmission

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Message-ID: <1325526085.18116.15.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC>
Date:	Mon, 02 Jan 2012 18:41:25 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Jean-Michel Hautbois <jhautbois@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: TCP communication for raw image transmission

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



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