On 07/24/16 15:28, Stefan Sperling wrote: > On Sun, Jul 24, 2016 at 01:09:26PM +0200, Andreas Bartelt wrote: >> However, the wireless link via iwm(4) is currently almost unusable. >> Overall throughput for multiple tcp connections typically between 0 and >> 1 Mbit/s but mostly on the lower end, i.e., 0. > > Looking at the wifi environment you're testing this in is very important. > > Does this happen consistently, and everywhere? > Or only at your home, with something like 20 other wifi networks on > the same channel? >
I've attached some scans regarding WiFi networks at my vicinity. I also did some measurements for iwn(4) regarding throughput at different locations. Performance was particularly bad after suspend/resume -- do you think this might be related? Best regards Andreas WiFi networks from scans very near at my access point (nwid's sanitized) [iwm(4) with observed througput between 1-11 Mbit/s; after suspend/resume, performance was only between 1-5 Mbits/s]: nwid mywlan chan 8 bssid 74:de:2b:3b:02:65 79% 54M privacy,short_preamble,short_slottime,wpa2 nwid aaaaaa chan 11 bssid 08:95:2a:87:f0:75 25% HT-MCS15 privacy,short_slottime,radio_measurement,wpa2 nwid bbbbbb chan 11 bssid 0a:95:2a:87:f0:77 22% HT-MCS15 privacy,short_slottime,radio_measurement,wpa2,802.1x nwid cccccc chan 11 bssid 8c:04:ff:b9:29:02 22% HT-MCS15 privacy,short_slottime,radio_measurement,wpa2 nwid dddddd chan 11 bssid 00:03:c9:8b:ee:10 17% 54M privacy,short_slottime,wep nwid eeeeee chan 2 bssid 00:12:bf:6d:51:3c 16% 54M privacy,short_preamble,short_slottime,wpa2 nwid ffffff chan 4 bssid 90:f6:52:2b:4a:54 14% HT-MCS15 privacy,short_preamble,short_slottime,wpa2 nwid gggggg chan 11 bssid f4:06:8d:84:8a:31 13% HT-MCS7 privacy,short_slottime,wpa2 nwid hhhhhh chan 1 bssid 88:03:55:be:42:2e 11% HT-MCS32 privacy,short_preamble,short_slottime,wpa2 nwid iiiiii chan 1 bssid 2c:59:e5:ef:f3:fa 11% 54M privacy,short_preamble,short_slottime,wpa2 nwid jjjjjj chan 2 bssid 18:83:bf:7d:61:4b 10% HT-MCS32 privacy,short_slottime,wpa2 nwid kkkkkk chan 11 bssid 24:65:11:2b:35:e6 10% HT-MCS15 privacy,short_preamble,short_slottime,wpa2 nwid oooooo chan 1 bssid 84:9c:a6:3a:e2:46 10% HT-MCS15 privacy,short_slottime,wpa2 nwid llllll chan 1 bssid 24:65:11:04:68:62 7% HT-MCS15 privacy,short_preamble,short_slottime,wpa2 nwid mmmmmm chan 6 bssid 7c:4f:b5:97:0f:22 5% HT-MCS32 privacy,short_slottime,wpa2 nwid nnnnnn chan 6 bssid 54:67:51:03:45:df 5% HT-MCS15 privacy,short_slottime,wpa2 >From the room where I typically observe the reported througput problems: [best case I've observed relatively stable througput around 9 Mbits; after suspend/resume, performance was only between 0-1 Mbits/s] nwid mywlan chan 8 bssid 74:de:2b:3b:02:65 46% 54M privacy,short_preamble,short_slottime,wpa2 nwid aaaaaa chan 11 bssid 08:95:2a:87:f0:75 41% HT-MCS15 privacy,short_slottime,radio_measurement,wpa2 nwid bbbbbb chan 11 bssid 0a:95:2a:87:f0:77 38% HT-MCS15 privacy,short_slottime,radio_measurement,wpa2,802.1x nwid eeeeee chan 2 bssid 00:12:bf:6d:51:3c 23% 54M privacy,short_preamble,short_slottime,wpa2
