From owner-freebsd-wireless@FreeBSD.ORG Thu Oct 10 20:41:11 2013 Return-Path: Delivered-To: freebsd-wireless@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id 4966AFEC for ; Thu, 10 Oct 2013 20:41:11 +0000 (UTC) (envelope-from adrian.chadd@gmail.com) Received: from mail-qc0-x22c.google.com (mail-qc0-x22c.google.com [IPv6:2607:f8b0:400d:c01::22c]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by mx1.freebsd.org (Postfix) with ESMTPS id 0A7762BC3 for ; Thu, 10 Oct 2013 20:41:10 +0000 (UTC) Received: by mail-qc0-f172.google.com with SMTP id k18so2253197qcv.31 for ; Thu, 10 Oct 2013 13:41:10 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:sender:in-reply-to:references:date:message-id:subject :from:to:cc:content-type; bh=SDC9fZVBB79pVSbNzCiFnkjeDDcJjJXBJQR9CwnHotg=; b=IKHKavAaL4qXKotS/Rs4ueY8+2G1dh+uN06vsIA4AxLEHcRSTsrbXTeEF8wd9wUGwm StJcNP2MVgTaJJN1t4AdVW8wYLILmVyjxW6Q212K9twJQdst9EwL0UouYiMfbRjQ7Z+3 hrw07+2PMgUNSROzCQ6x2RyL1DIqv5sMz5BOFGRM2B2UpAkdy4GvMx6bUgeBKDf/g9rr msoU0Fyt3e9GCxAx4STr+GiBG3ZwwTIUlDI4hj0ky8z0Qh7LwEJaSJ3nzs8Uala/Betu WzgbwKNEDbywpKXRpyuy7e4ONVgs5Z0uecV4TvqYe3PdcO9D3fKCz0100MrSm5fDk3Nf zrIw== MIME-Version: 1.0 X-Received: by 10.229.116.197 with SMTP id n5mr14126902qcq.22.1381437670152; Thu, 10 Oct 2013 13:41:10 -0700 (PDT) Sender: adrian.chadd@gmail.com Received: by 10.224.207.66 with HTTP; Thu, 10 Oct 2013 13:41:10 -0700 (PDT) In-Reply-To: References: Date: Thu, 10 Oct 2013 13:41:10 -0700 X-Google-Sender-Auth: VqCNX3BczDWOGo0Q0dseHQJugTw Message-ID: Subject: Re: Ralink RT2860 frame aggregation From: Adrian Chadd To: Ramanujan Seshadri Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 Cc: "freebsd-wireless@freebsd.org" X-BeenThere: freebsd-wireless@freebsd.org X-Mailman-Version: 2.1.14 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: Thu, 10 Oct 2013 20:41:11 -0000 I forget .. is the driver or the NIC itself doing aggregation? -a On 10 October 2013 10:33, Ramanujan Seshadri wrote: > Hello all, > i was testing some features of ralink rt2860 driver. i saw a bit weird > results. below is the result of what i saw. The throughput achieved doesn't > change much when the MPDU aggregation in an AMPDU goes from 3 to 8. And > also, the driver doesn't seem to aggregate more than 8 MPDU's in an AMPDU > even when the BA win size is set to max of 64. i was testing this by fixing > the rate at MCS 15 > > Is there anything else i need to do to force the driver to aggregate more > MPDU's in an AMPDU ? > > > > BA Win Size No. of MPDU's Throughput(Mbps) > aggregated > > 1. 64 7-8 85.7 > > 2. 32 6-7 84.2 > > 3. 16 6-7 81.7 > > 4. 8 6-7 79.9 > > 5. 4 5 84.7 > > 6. 2 3 71.8 > > 7. 1 2 73.5 > > > Thanks > ram > _______________________________________________ > freebsd-wireless@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-wireless > To unsubscribe, send any mail to "freebsd-wireless-unsubscribe@freebsd.org > " >