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From: "J.Hwan Kim" <frog1120@gmail.com>
To: linux-kernel@vger.kernel.org
Subject: RSS mode performance in ixgbe (82599) driver
Date: Tue, 09 Aug 2011 21:03:55 +0900	[thread overview]
Message-ID: <4E41222B.8060003@gmail.com> (raw)

Hi, everyone

I'm testing the RSS mode throughput of Intel ixgbe 82599 driver.
My server's specification is Xeon 3GHz (4cores) and PCIe speed is 
2.5Gx8lanes,
and DD2 memory is about 600~700MHz.

When I enable the RSS(receive side scaling) mode with 4 Rx queues,
the Rx performance is below than when I use a single queue.

I don't know how the cores operate, whether the cores run in sequence
or simultaneously at the same time.

I want to know the mechanism in general how the multi-cores run
and the reason why the performance of ixgbe driver in rss mode is below
non-rss mode.

Thanks in advance.

Best Regards,
J.Hwan Kim






             reply	other threads:[~2011-08-09 12:04 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-08-09 12:03 J.Hwan Kim [this message]
2011-08-09 12:43 ` RSS mode performance in ixgbe (82599) driver Eric Dumazet

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