oops, should have kept this on list

---------- Forwarded message ----------
From: Chris Leech <[EMAIL PROTECTED]>
Date: Mar 16, 2006 10:56 AM
Subject: Re: I/OAT performance data
To: Rick Jones <[EMAIL PROTECTED]>


> When it says "buffer size" for the Chariot stuff, is that the socket
> buffer size, or the size of the buffer(s) being passed to the transport?

That's the I/O size for the application, being passed to the transport.

> Was the MTU 1500 or 9000 bytes?

1500 byte MTU

> Can the Chariot do small packet latency tests and/or aggregate small
> packet performance?

Yes, but for small I/O the overhead of pinning pages and initiating
the offloaded copy overtakes the benefits.  We currently see that
cutoff at about 2k.

- Chris
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