From: Shlomo Pongartz <shlomop@mellanox.com>
To: <netdev@vger.kernel.org>
Subject: GRO aggregation
Date: Tue, 11 Sep 2012 16:45:07 +0300 [thread overview]
Message-ID: <504F4063.9030706@mellanox.com> (raw)
Hi,
I’m checking GRO aggregation with kernel 3.6.0-rc1+ using Intel ixgbe
driver.
The mtu is 1500 and GRO is on and so are SG and RX checksum.
I ran iperf with default setting and monitor the receiver with tcpdump.
The tcpdump shows that the maximal aggregation is 32120 which is 21 * 1500.
In the transmitter side tcpdump shows that TSO works better (~64K).
I did a capture without GRO enabled to see if there was a difference
between any flag
of any two consecutive packets that forced flushing but didn't find
anything.
Is the GRO aggregation can be tuned.
Shlomo Pongratz
next reply other threads:[~2012-09-11 13:46 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-11 13:45 Shlomo Pongartz [this message]
2012-09-11 18:20 ` GRO aggregation Marcelo Ricardo Leitner
2012-09-11 18:41 ` Shlomo Pongratz
2012-09-11 18:48 ` Marcelo Ricardo Leitner
2012-09-11 18:51 ` Shlomo Pongratz
2012-09-11 18:33 ` Eric Dumazet
2012-09-11 18:49 ` Shlomo Pongratz
2012-09-11 19:01 ` Eric Dumazet
2012-09-11 19:24 ` Shlomo Pongratz
2012-09-11 19:35 ` David Miller
2012-09-11 19:35 ` Eric Dumazet
2012-09-12 9:23 ` Shlomo Pongartz
2012-09-12 9:33 ` Eric Dumazet
2012-09-12 14:41 ` Shlomo Pongartz
2012-09-12 16:23 ` Rick Jones
2012-09-12 16:34 ` Shlomo Pongartz
2012-09-12 16:52 ` Rick Jones
2012-09-13 6:36 ` Shlomo Pongartz
2012-09-13 8:11 ` Eric Dumazet
2012-09-13 9:59 ` Or Gerlitz
2012-09-13 12:05 ` Eric Dumazet
2012-09-13 12:34 ` Eric Dumazet
2012-09-13 12:47 ` Or Gerlitz
2012-09-13 13:22 ` Eric Dumazet
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