diff options
| author | Nimrod Andy <[email protected]> | 2014-06-12 08:16:23 +0800 |
|---|---|---|
| committer | David S. Miller <[email protected]> | 2014-06-12 11:01:57 -0700 |
| commit | 79f339125ea316e910220e5f5b4ad30370f4de85 (patch) | |
| tree | 51de696840abc67a2f5d5803f63212b2fd593481 /tools/perf/util/trace-event-scripting.c | |
| parent | 6e909283cb344e32aa8adb4a4c169512d8e5fd27 (diff) | |
net: fec: Add software TSO support
Add software TSO support for FEC.
This feature allows to improve outbound throughput performance.
Tested on imx6dl sabresd board, running iperf tcp tests shows:
- 16.2% improvement comparing with FEC SG patch
- 82% improvement comparing with NO SG & TSO patch
$ ethtool -K eth0 tso on
$ iperf -c 10.192.242.167 -t 3 &
[ 3] local 10.192.242.108 port 35388 connected with 10.192.242.167 port 5001
[ ID] Interval Transfer Bandwidth
[ 3] 0.0- 3.0 sec 181 MBytes 506 Mbits/sec
During the testing, CPU loading is 30%.
Since imx6dl FEC Bandwidth is limited to SOC system bus bandwidth, the
performance with SW TSO is a milestone.
CC: Ezequiel Garcia <[email protected]>
CC: Eric Dumazet <[email protected]>
CC: David Laight <[email protected]>
CC: Li Frank <[email protected]>
Signed-off-by: Fugang Duan <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Diffstat (limited to 'tools/perf/util/trace-event-scripting.c')
0 files changed, 0 insertions, 0 deletions