-----Original Message----- From: centos-bounces at centos.org [mailto:centos-bounces at centos.org] On Behalf Of nate Sent: Thursday, February 25, 2010 1:03 AM To: centos at centos.org Subject: Re: [CentOS] Desperately need help with multi-core NIC performance Pete Kay wrote: > Hi > > So is that the limit? I have heard people being able to run like 10K > call channels before max out CPU cap. I would verify the network throughput of your system to make sure the NIC/switch/etc are functioning normally, I use iperf to do this, really simple tool to use just need two systems. On a good network you should be able to sustain roughly 900+Mbit/s with standard frame sizes and iperf on a single gigE link(hopefully with no tuning) ------------------------------------------------------------ Just for reference... On a slightly less-then-optimal network i could get 900Mbps between an HP DL380 and an old IBM-T43, both with 1Gb nics and no tuning at all, through corporate network. Between two DL380 with 10GB nics i got a performance boost (2500Mb -> 6500Mb) after i raised the MTU to 8K hw ______________________________________________________________________ Dit bericht kan informatie bevatten die niet voor u is bestemd. Indien u niet de geadresseerde bent of dit bericht abusievelijk aan u is toegezonden, wordt u verzocht dat aan de afzender te melden en het bericht te verwijderen. De Staat aanvaardt geen aansprakelijkheid voor schade, van welke aard ook, die verband houdt met risico's verbonden aan het elektronisch verzenden van berichten. This message may contain information that is not intended for you. If you are not the addressee or if this message was sent to you by mistake, you are requested to inform the sender and delete the message. The State accepts no liability for damage of any kind resulting from the risks inherent in the electronic transmission of messages.