The regression still exists in Kernel 4.7.0-040700rc4-generic. I tested 3 times:
x@x-E6400:~$ iperf -c 192.168.10.11 -r -t 30 ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ ------------------------------------------------------------ Client connecting to 192.168.10.11, TCP port 5001 TCP window size: 136 KByte (default) ------------------------------------------------------------ [ 5] local 192.168.10.21 port 57022 connected with 192.168.10.11 port 5001 [ ID] Interval Transfer Bandwidth [ 5] 0.0-30.0 sec 506 MBytes 141 Mbits/sec [ 4] local 192.168.10.21 port 5001 connected with 192.168.10.11 port 35856 [ 4] 0.0-30.3 sec 192 MBytes 53.2 Mbits/sec x@x-E6400:~$ iperf -c 192.168.10.11 -r -t 30 ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ ------------------------------------------------------------ Client connecting to 192.168.10.11, TCP port 5001 TCP window size: 170 KByte (default) ------------------------------------------------------------ [ 5] local 192.168.10.21 port 57026 connected with 192.168.10.11 port 5001 [ ID] Interval Transfer Bandwidth [ 5] 0.0-30.1 sec 500 MBytes 140 Mbits/sec [ 4] local 192.168.10.21 port 5001 connected with 192.168.10.11 port 35864 [ 4] 0.0-30.5 sec 201 MBytes 55.2 Mbits/sec x@x-E6400:~$ iperf -c 192.168.10.11 -r -t 30 ------------------------------------------------------------ Server listening on TCP port 5001 TCP window size: 85.3 KByte (default) ------------------------------------------------------------ ------------------------------------------------------------ Client connecting to 192.168.10.11, TCP port 5001 TCP window size: 136 KByte (default) ------------------------------------------------------------ [ 5] local 192.168.10.21 port 57028 connected with 192.168.10.11 port 5001 [ ID] Interval Transfer Bandwidth [ 5] 0.0-30.0 sec 495 MBytes 138 Mbits/sec [ 4] local 192.168.10.21 port 5001 connected with 192.168.10.11 port 35871 [ 4] 0.0-30.4 sec 237 MBytes 65.5 Mbits/sec ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed ** Tags added: kernel-bug-exists-upstream -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1594148 Title: Intel wireless 6300 ultimate, regression of throughput 12.04 >> 16.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1594148/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs