SUMMARY - T2000: Poor Network Performance

From: Rob Brown <>
Date: Fri Oct 27 2006 - 08:17:02 EDT

Thanks for all the replies, but mainly to John Garner for sharing some
performance figures he had done himself on this.

The problem is with the performance of the T2000 itself on a single
thread app.  When you ftp to the server, the ftpd is obviously only one
thread, and the system could only pull in up to 25Mb/s through the NIC.
If you launched another ftp session at the same time the total ftp
traffic increased to 50Mb/s, this continues until you saturate the
interface (running at 100Mb/s FD).  But a single thread _can't_ utilize
the full 100Mb.

Which frankly sucks!  My Ultra 10 can do that.  You really do have to be
careful with these systems, and ensure your workload is going to fit
well with the strengths that this box undoubtedly has.

Best regards

Rob Brown

Original Post below

> We've got a handful of T2000 system at different customer sites, that

> seem to be exhibiting a common problem.  We are fairly sure they've

> always performed like this.




> The T2000 network performance seems to be very poor.  By that I mean I

> can ftp one large file from my PC to an Ultra 10 at almost 100Mb

> second, but the same test to the various T2000's seems to yield only

> 25Mb.




> Yes.  It's is set to 100m full duplex.




> We have both Solaris 10 0606 and Solaris 10 0106.

rob brown


1, Innovation Close,
Science Park,
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Received on Fri Oct 27 08:17:33 2006

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