Date: Fri, 10 Jan 2014 21:02:36 -0800 From: Kevin Oberman <rkoberman@gmail.com> To: FreeBSD Wireless <freebsd-wireless@freebsd.org> Subject: IWN performance very bad with 10.0-RC5 Message-ID: <CAN6yY1skA-x=-JLf%2BWQ0GJdSmHugqmSX2Um2zWkKB_cULxwsSw@mail.gmail.com>
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Since upgrading my system to 10.0-RC# and now 10.0-RC5, by wireless performance has severely degraded. iwn0@pci0:3:0:0: class=0x028000 card=0x13118086 chip=0x00858086 rev=0x34 hdr=0x00 vendor = 'Intel Corporation' device = 'Centrino Advanced-N 6205 [Taylor Peak]' class = network Throughput is down sharply for TCP file transfers (sftp) between it and a local, wired system. Under 9.2-STABLE I was getting about 23 Mbps. With 10.0-rc5, I get about 11M. Testing also shows occasional, short circuit drops, under half a second each. Once in a while under 10.0-rc3 I would see the link drop and stay down. restarting the interface (service netif restart restart) would restore the link. I just upgraded to 10.0-rc5 this afternoon and have not seen the hang to this point, but this only happened every couple of days. I just noticed that the interface is running '11g' and not 'n'. wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 ether a0:88:b4:c6:ad:28 inet 192.168.1.5 netmask 0xffffff00 broadcast 192.168.1.255 nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> media: IEEE 802.11 Wireless Ethernet OFDM/48Mbps mode 11g status: associated ssid babcom channel 6 (2437 MHz 11g) bssid 00:26:b8:67:c3:2d country US authmode WPA2/802.11i privacy ON deftxkey UNDEF AES-CCM 2:128-bit txpower 15 bmiss 10 scanvalid 60 bgscan bgscanintvl 300 bgscanidle 250 roam:rssi 7 roam:rate 5 protmode CTS wme roaming MANUAL Any idea of the problem or what information I could provide? -- R. Kevin Oberman, Network Engineer, Retired E-mail: rkoberman@gmail.com
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