2012-04-08 p4 @203041M UDP loopback

Test runs

netperf-2.5 UDP_STREAM test was run over 3 reboot iterations, with each iteration having 1 warm up run and 10 recorded netperf runs.

On IPv6 UDP checksums are mandatory, so we did not turn them off for comparisons.

IPv4/UDP with and without offloading turned on, with and without checksumming turned on, and IPv6/UDP with and without offloading turned on

x hydra1/test_lo0_netperf_udp4_default_nocksum.stat
+ hydra1/test_lo0_netperf_udp4_nooffload_nocksum.stat
* hydra1/test_lo0_netperf_udp4_default.stat
% hydra1/test_lo0_netperf_udp4_nooffload.stat
# hydra1/test_lo0_netperf_udp6_default.stat
@ hydra1/test_lo0_netperf_udp6_nooffload.stat
+--------------------------------------------------------------------------+
|    @                                                                     |
|    @@                                                                    |
|    @@                                                                    |
|    @@                                                                    |
|    @@                                                                    |
|    @@                                                                    |
|    @@ %%  %         #                                                    |
|    @@%@% %%         #          *                                         |
|   @@@%@% %%O+     # # O+x    O *x+   x x+  *     +   * +                 |
|   @@@%@%O%@O*@O# O# ##O*#O O*O*OOO*#OO*O**+*+#OO ++*#****  *x **x*x* *  x|
|                            |___________M_A_____________|                 |
|                          |_____________A__M__________|                   |
|                       |_____________M__A_________________|               |
|      |_MA_|                                                              |
|                |________M_A___________|                                  |
||____M_A_______|                                                          |
+--------------------------------------------------------------------------+
    N           Min           Max        Median           Avg        Stddev
x  30       4808.69       8765.86       6197.07     6379.0637     1088.9821
+  30       4044.88       7984.51       6472.68     6200.3897     1102.6804
No difference proven at 95.0% confidence
*  30       4016.43        8555.5       5950.76       6243.56     1361.7369
No difference proven at 95.0% confidence
%  30       3584.58          4365       3714.43     3791.0767     188.50203
Difference at 95.0% confidence
	-2587.99 +/- 403.957
	-40.57% +/- 6.33254%
	(Student's t, pooled s = 781.478)
#  30       3791.36       7206.65        5043.3      5230.109     880.95345
Difference at 95.0% confidence
	-1148.95 +/- 511.975
	-18.0113% +/- 8.02586%
	(Student's t, pooled s = 990.445)
@  30       3342.96        6078.4       3488.41     3696.4073     571.20296
Difference at 95.0% confidence
	-2682.66 +/- 449.471
	-42.0541% +/- 7.04603%
	(Student's t, pooled s = 869.527)