Date: Fri, 03 Mar 2017 08:59:18 +0200 From: "Andriy Voskoboinyk" <avos@freebsd.org> To: =?utf-8?Q?Otac=C3=ADlio?= <otacilio.neto@bsd.com.br> Cc: "freebsd-wireless@freebsd.org" <freebsd-wireless@freebsd.org> Subject: Re: Low performance on rtwn_usb Message-ID: <op.ywii04ub4dikkl@thinkpad-x220> In-Reply-To: <38d16a0b-f60c-4303-f167-9d7ae0e876d7@bsd.com.br> References: <38d16a0b-f60c-4303-f167-9d7ae0e876d7@bsd.com.br>
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Fri, 03 Mar 2017 04:25:03 +0200 було написано Otacílio <otacilio.neto@bsd.com.br>: > > ieee80211_load_module: load the wlan_amrr module by hand for now. Without wlan_amrr module default rate will be set to some fixed value (1 MBps for 11g, 6 MBps for 11a) (can be modified via ucastrate / mcastrate / mgtrate ifconfig(8) parameters). For now, there are only 2 possibilites: 1) Kldload / add wlan_amrr to kld_list & use wlan_amrr for automatic rate adaptation (current activity can be seen via 'wlandebug -i wlan0 rate') 2) Set the rate manually via ifconfig(8) (disables automatic rate adaptation; use 'ifconfig wlan0 *rate -' to return to it). > Dears > > I'm using a USB wifi dongle to connect my baglebone black. This dongle > uses the driver rtwn/rtwn_usb. > > This driver exhibits a very low performance on both, beaglebone and a > Intel Core 2 Duo notebook. With -ht and without -ht on the ficonfig the > performance is something like this: > > root@beaglebone:/usr/home/ota # netperf -H nostromo > MIGRATED TCP STREAM TEST from 0.0.0.0 () port 0 AF_INET to nostromo () > port 0 AF_INET : histogram : interval : dirty data : demo > Recv Send Send > Socket Socket Message Elapsed > Size Size Size Time Throughput > bytes bytes bytes secs. 10^6bits/sec > > 65536 32768 32768 10.91 0.49 > > The dongle is this > > ugen1.2: <vendor 0x0bda product 0x8176> at usbus1 > rtwn0 on uhub1 > rtwn0: <vendor 0x0bda product 0x8176, class 0/0, rev 2.00/2.00, addr 2> > on usbus1 > rtwn0: MAC/BB RTL8188CUS, RF 6052 1T1R > ieee80211_load_module: load the wlan_amrr module by hand for now. > wlan0: Ethernet address: 80:3f:5d:11:28:e6 > > Someone can give me a hint to enhance performance? Previously, with urtw > the throughput was about MBPs. > > []'s > > -Otacilio > > _______________________________________________ > freebsd-wireless@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-wireless > To unsubscribe, send any mail to > "freebsd-wireless-unsubscribe@freebsd.org"help
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