Return-path: Received: from nm22-vm0.bullet.mail.bf1.yahoo.com ([98.139.212.126]:23701 "HELO nm22-vm0.bullet.mail.bf1.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751844Ab1DHJyQ (ORCPT ); Fri, 8 Apr 2011 05:54:16 -0400 Message-ID: <699128.18071.qm@web161601.mail.bf1.yahoo.com> Date: Fri, 8 Apr 2011 02:54:15 -0700 (PDT) From: Walter Goldens Subject: Re: Questions about rt2800usb To: Ivo Van Doorn Cc: Steev Klimaszewski , Jett Chen , Larry Finger , wireless In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-wireless-owner@vger.kernel.org List-ID: > > Try: > > iwconfig wlan0 power off > > to disable powersaving. > > Ivo Hi Ivo, Disabling power decreased latency substantially to a normal level, however it paved the way for myriad duplicate packets. rt2800usb: PING gmail.com (209.85.229.19) 56(84) bytes of data. 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=1 ttl=53 time=52.9 ms 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=2 ttl=53 time=50.2 ms 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=3 ttl=53 time=51.6 ms 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=4 ttl=53 time=52.8 ms 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=5 ttl=53 time=53.3 ms 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=6 ttl=53 time=51.4 ms 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=6 ttl=53 time=52.4 ms (DUP!) 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=6 ttl=53 time=52.5 ms (DUP!) 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=7 ttl=53 time=51.8 ms 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=7 ttl=53 time=54.8 ms (DUP!) 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=7 ttl=53 time=56.5 ms (DUP!) 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=7 ttl=53 time=58.2 ms (DUP!) 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=7 ttl=53 time=59.9 ms (DUP!) 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=7 ttl=53 time=61.3 ms (DUP!) 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=7 ttl=53 time=62.9 ms (DUP!) 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=7 ttl=53 time=63.3 ms (DUP!) 64 bytes from ww-in-f19.1e100.net (209.85.229.19): icmp_req=8 ttl=53 time=51.4 ms ^C --- gmail.com ping statistics --- 8 packets transmitted, 8 received, +9 duplicates, 0% packet loss, time 7011ms rtt min/avg/max/mdev = 50.285/55.181/63.304/4.219 ms Without these, the rt2800usb is looking to be pretty stellar driver. Walter