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Re: Direct Routing sucking up System Resources?

To: Jeffrey A Schoolcraft <jschoolc@xxxxxxxxxxx>
Subject: Re: Direct Routing sucking up System Resources?
Cc: Joseph Mack <mack.joseph@xxxxxxxxxxxxxxx>, lvs-users@xxxxxxxxxxxxxxxxxxxxxx
From: Joseph Mack <mack.joseph@xxxxxxx>
Date: Thu, 21 Sep 2000 16:00:51 -0400
Jeffrey A Schoolcraft wrote:


> My test machine had a gig card, through a gig switch 

ah, this is new territory.  

> > > I thought we should have no overhead running a DR approach.
> >
> > Shifting 100Mbps of packets requires some work, but I wouldn't have
> > expected the results you got.
> >
> > you sound like you've pushed VS-DR harder than anyone else. I wouldn't
> > have expected that the director be working any harder than if it was
> > just routing the same number of packets. So I don't know why this
> > happened.
> 
> cool.

with gig network, you're the first one to find the cpu limiting. take a bow.
 
> >
> > I assume you have 100Mbps ethernet and 1 client. What is the throughput
> > returning to the client for each of these tests and how does that compare
> > to the throughput you get when getting the files directly from
> > the real-servers?

I'd be interested in these results, to confirm that there's nothing weird
or unaccounted for going on and that what you see is really due to LVS.
 
> > How does this compare to changing the LVS director to just a router for
> > the two realservers.

Joe

-- 
Joseph Mack PhD, Senior Systems Engineer, Lockheed Martin
contractor to the National Environmental Supercomputer Center, 
mailto:mack.joseph@xxxxxxx ph# 919-541-0007, RTP, NC, USA


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