From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-la0-x233.google.com ([2a00:1450:4010:c03::233]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1YqQ7S-0004US-1j for ath10k@lists.infradead.org; Thu, 07 May 2015 18:01:58 +0000 Received: by lagv1 with SMTP id v1so36418501lag.3 for ; Thu, 07 May 2015 11:01:36 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: References: Date: Thu, 7 May 2015 20:01:35 +0200 Message-ID: Subject: Re: Cannot achieve throughput higher than 460Mbps using CT firmware and 3x3 ath10k From: richard mayers List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "ath10k" Errors-To: ath10k-bounces+kvalo=adurom.com@lists.infradead.org To: Pushpal Sidhu , ath10k@lists.infradead.org Its only 30% of CPU usage when I am transmit at maximum speed. May be I am not checking it correctly, I just use top and then press 1 and it splits the cores (it has only 2). In the worst case if 30% was the average it should be a maximum of 60% in one single core. Richard. 2015-05-07 19:00 GMT+02:00 Pushpal Sidhu : > On Wed, May 6, 2015 at 8:01 AM, richard mayers > wrote: >> Hi all, >> >> The maximum throughput I get with the following set up is around >> 460-470Mbits/s when using MCS 6, 80MHz channel and 3 spatial streams. >> However, when I try MCS 7, the throughput drops to 200Mbits/s, and >> when I use 8 or 9 it goes to 0. The signal level is -11dBm which I >> guess is quite good. >> >> Do you have any indications of what I do wrong and cannot get 600Mbps >> throughput, as mention in previous messages in this list? Any help is >> highly appreciated. >> >> My set up is as follows: >> >> - STA: compex wle900vx (QCA988x), ubuntu 14.04 LTS, dell dual core >> 1.66ghz, kernel version 3.16, driver backport 4.0.1 and as a firmware >> the commercial firmware from Candela Tech ( >> 10.4.467-ct-com-full-013-b5b14a). > > Honestly, I think it's your CPU. Run top while doing your throughput > test, and I think you'll see 100% sirq (pegged CPU core). Also make > sure you split the CPU's up so you're not looking at the 'total' cpu > count. > > - Pushpal _______________________________________________ ath10k mailing list ath10k@lists.infradead.org http://lists.infradead.org/mailman/listinfo/ath10k