Verified with 201606-22355 Dell XPS 13 9360 The fix in -proposed make significant improvement for the performance.
Before -proposed: == AC == sftp put ubuntu-17.04-desktop-amd64.iso (1535MB) 1.1MB/s 23:45 iperf speed test: 0.0-120.1 sec 140 MBytes 9.81 Mbits/sec == N == iperf speed test: 0.0-120.1 sec 212 MBytes 14.8 Mbits/sec ---- After install the -proposed kernel: == AC == sftp put ubuntu-17.04-desktop-amd64.iso (1535MB) 6.7MB/s 03:50 iperf speed test: 0.0-120.0 sec 737 MBytes 51.5 Mbits/sec == N == iperf speed test iperf speed test: 0.0-120.0 sec 1.06 GBytes 75.7 Mbits/sec ** Tags removed: verification-needed-xenial ** Tags added: verification-done-xenial -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1692836 Title: Dell XPS 9360 wifi 5G performance is poor Status in HWE Next: Fix Committed Status in HWE Next xenial series: Fix Committed Status in linux package in Ubuntu: Fix Committed Status in linux source package in Xenial: Fix Committed Bug description: TX throughput is not good in Ubuntu in IEEE 802.11ac mode. Measured Rx 60Mbit/s and Tx 12Mbit/s with Ubuntu Windows 10 (1607) performs much better with on transmit side Rx 73MBit/s and Tx 62MBit/s using the same hardware setup. Same result with WPA2 disabled in unencrypted mode. Steps to Reproduce: 1. connect to Wifi 2. copy a large file from XPS 13 to a share on a 2nd system To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1692836/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
