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
next 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 ` Eric Dumazet
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