From owner-freebsd-wireless@freebsd.org Fri Mar 3 02:25:30 2017 Return-Path: Delivered-To: freebsd-wireless@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 59B07CF5C38 for ; Fri, 3 Mar 2017 02:25:30 +0000 (UTC) (envelope-from otacilio.neto@bsd.com.br) Received: from mail-qk0-x232.google.com (mail-qk0-x232.google.com [IPv6:2607:f8b0:400d:c09::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 1F8911FD9 for ; Fri, 3 Mar 2017 02:25:29 +0000 (UTC) (envelope-from otacilio.neto@bsd.com.br) Received: by mail-qk0-x232.google.com with SMTP id s186so155288998qkb.1 for ; Thu, 02 Mar 2017 18:25:29 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsd.com.br; s=capeta; h=to:from:subject:message-id:date:user-agent:mime-version :content-transfer-encoding; bh=/4WQjC85MAfJwJTAneF6rT8Ompa9K6Pk41tIn7sdDkQ=; b=S5ghUN1d6rbJtQ+85YSGgu8yWdQJbXjFXhyVFXzcrKAbVIrqEQE8kfyH2ks9xSZL1V OAL8dtj1Uu6F+iiTRSqsKY36bjlbuHosogPKhVMAKt4pNO9AemoV63gsuJYqVJ903gkn 0DFL+SSRdCTm4sdv7e/FXMesXmTmVKo/kJRn8= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:to:from:subject:message-id:date:user-agent :mime-version:content-transfer-encoding; bh=/4WQjC85MAfJwJTAneF6rT8Ompa9K6Pk41tIn7sdDkQ=; b=qjE5RvHxqobEEOjbl0ctL/jFbLiB5hxPQaJpJDupYGuBkizwV+1U3HRsWMjCYHTBZt UcddyFZH3F5Cm5t92wUDrj7JA7mdL/pgDeo7vScqVSwZ1/BT3zEWIedT5eo+Fac0nRTw sI5o/7B3Nb+ZXR7XwJgIqRHwi/xSsQOcAlbqdJIXCbQ4b8hilIlr+Ppr9krqzBwdAlmN 9QtMNZqq5J49muhq0SgiXzuTtlRKspjxvZSpVMTC0/UFduI+jjyvcHWWQINNXDc4RVWO Pt0L686QGaMkyUs4m5wNq6CxPuH5i7hLKP25WmWC5wjqwi6E5RVom+UY/3ooXlwRcZgL t2SQ== X-Gm-Message-State: AMke39lTvqFyeEO5DQMtoRv7vL5uzK0MizdpsKEvV85S12itFgARwg3sHMoy+d8HUy/aFg== X-Received: by 10.55.15.217 with SMTP id 86mr468550qkp.102.1488507928435; Thu, 02 Mar 2017 18:25:28 -0800 (PST) Received: from [192.168.0.11] ([186.236.217.98]) by smtp.googlemail.com with ESMTPSA id m136sm6688633qke.53.2017.03.02.18.25.27 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 02 Mar 2017 18:25:27 -0800 (PST) To: "freebsd-wireless@freebsd.org" From: =?UTF-8?B?T3RhY8OtbGlv?= Subject: Low performance on rtwn_usb Message-ID: <38d16a0b-f60c-4303-f167-9d7ae0e876d7@bsd.com.br> Date: Thu, 2 Mar 2017 23:25:03 -0300 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.7.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: "Discussions of 802.11 stack, tools device driver development." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 03 Mar 2017 02:25:30 -0000 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: at usbus1 rtwn0 on uhub1 rtwn0: 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