site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com Importance: Normal User-agent: SquirrelMail/1.4.6-rc1 On Tue, November 28, 2006 11:30 am, AgentM wrote:

On Nov 28, 2006, at 11:13 , Anees Alappat wrote:

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Hi, I am using one Apple Power G5 machines with MAC OS X 10.4 and one Intel pro with MAC OS X 10.4,each with two, 1Gbps network cards. I tried apple's Link Aggregation for creating a new virtual interface bond0. These machines are connected using 2 cross cables (CAT 6). But when i send a 50 GB data (single file) across the machines using ftp, i didnot find any impovement in speed than sending across a single network interface. One thing i observerd is that the data rate is not going above 53MB/ s.This is less than half of the capacity of a single network interface.And the cpu usage is less than 10%,memory is utilizing fully(1GB). I feel the meaning of link aggregation comes only when data pumbing from stack is more than ~120MB?(ie, more than a single links capacity). I would like to know, how can we increase data pumbing from stack to layer2.Is there any bench marking application available for demonstrating link aggregation? It would be really helpful ,if any one share their views on Link aggreagation.

53 MBps sounds like your HD is your limitation. If you want to test link aggregation, then use iperf- available via fink: http://dast.nlanr.net/Projects/Iperf/

There are Mac OS X iperf binaries on the linked page. No need to mess with fink. Josh -- Josh Wisenbaker U, U, D, D, L, R, L, R, B, A, Start for your server http://www.afp548.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... This email sent to site_archiver@lists.apple.com