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Add counters for RX/TX bytes and RX/TX frames. These are collected on a per queue basis and then accumulated into an atomic shared value across the different threads for the device as a whole. Collecting and accumulating these counters makes minimal difference in the iperf results. Any difference seen is within what is observed as natural variation in this test. e.g. With counter updates: $ iperf3 -c 192.168.249.2 Connecting to host 192.168.249.2, port 5201 [ 5] local 192.168.249.1 port 52706 connected to 192.168.249.2 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 6.19 GBytes 53.2 Gbits/sec 0 3.01 MBytes [ 5] 1.00-2.00 sec 6.31 GBytes 54.2 Gbits/sec 0 3.01 MBytes [ 5] 2.00-3.00 sec 6.29 GBytes 54.0 Gbits/sec 0 3.01 MBytes [ 5] 3.00-4.00 sec 6.22 GBytes 53.4 Gbits/sec 0 3.01 MBytes [ 5] 4.00-5.00 sec 6.14 GBytes 52.8 Gbits/sec 0 3.01 MBytes [ 5] 5.00-6.00 sec 6.13 GBytes 52.7 Gbits/sec 0 3.01 MBytes [ 5] 6.00-7.00 sec 6.20 GBytes 53.3 Gbits/sec 0 3.01 MBytes [ 5] 7.00-8.00 sec 6.16 GBytes 52.9 Gbits/sec 0 3.01 MBytes [ 5] 8.00-9.00 sec 6.13 GBytes 52.6 Gbits/sec 0 3.01 MBytes [ 5] 9.00-10.00 sec 6.15 GBytes 52.8 Gbits/sec 0 3.01 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 61.9 GBytes 53.2 Gbits/sec 0 sender [ 5] 0.00-10.00 sec 61.9 GBytes 53.2 Gbits/sec receiver iperf Done. Without counter updates: $ iperf3 -c 192.168.249.2 Connecting to host 192.168.249.2, port 5201 [ 5] local 192.168.249.1 port 52716 connected to 192.168.249.2 port 5201 [ ID] Interval Transfer Bitrate Retr Cwnd [ 5] 0.00-1.00 sec 6.29 GBytes 54.1 Gbits/sec 0 3.03 MBytes [ 5] 1.00-2.00 sec 6.18 GBytes 53.1 Gbits/sec 0 3.03 MBytes [ 5] 2.00-3.00 sec 6.26 GBytes 53.8 Gbits/sec 0 3.03 MBytes [ 5] 3.00-4.00 sec 6.24 GBytes 53.6 Gbits/sec 0 3.03 MBytes [ 5] 4.00-5.00 sec 6.27 GBytes 53.9 Gbits/sec 1 3.03 MBytes [ 5] 5.00-6.00 sec 6.31 GBytes 54.2 Gbits/sec 0 3.03 MBytes [ 5] 6.00-7.00 sec 6.29 GBytes 54.1 Gbits/sec 0 3.03 MBytes [ 5] 7.00-8.00 sec 6.16 GBytes 52.9 Gbits/sec 0 3.03 MBytes [ 5] 8.00-9.00 sec 6.13 GBytes 52.6 Gbits/sec 0 3.03 MBytes [ 5] 9.00-10.00 sec 6.25 GBytes 53.7 Gbits/sec 0 3.03 MBytes - - - - - - - - - - - - - - - - - - - - - - - - - [ ID] Interval Transfer Bitrate Retr [ 5] 0.00-10.00 sec 62.4 GBytes 53.6 Gbits/sec 1 sender [ 5] 0.00-10.00 sec 62.4 GBytes 53.6 Gbits/sec receiver iperf Done. Signed-off-by: Rob Bradford <robert.bradford@intel.com> |
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src | ||
Cargo.toml |