Return-path: Received: from mx1.redhat.com ([209.132.183.28]:26388 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752037Ab3APODC (ORCPT ); Wed, 16 Jan 2013 09:03:02 -0500 Date: Wed, 16 Jan 2013 15:01:02 +0100 From: Stanislaw Gruszka To: linux-wireless@vger.kernel.org Cc: Seth Forshee , Paul Stewart , Amitkumar Karwar , Bing Zhao Subject: Re: [RFC] mac80211: soft scan vs latency Message-ID: <20130116140102.GA10746@redhat.com> (sfid-20130116_150306_760516_BB02AFFD) References: <20130114145558.GA24250@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <20130114145558.GA24250@redhat.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Jan 14, 2013 at 03:55:58PM +0100, Stanislaw Gruszka wrote: > Except latency, patch perhaps also improve throughput, since we spend > more time on-channel while scanning. But I'm not quite sure, since > overall scanning time is bigger. I did not test influence of the patch > on throughput. > > I tested patch by doing: > > while true; do iw dev wlan0 scan; sleep 3; done > /dev/null I can see slight throughput improvement with patch, measured by scp: Upload to periodical scanning machine: scp -B Fedora-18-Beta-i686-Live-Desktop.iso stasiu@192.168.1.105:~/ Unpatched: 3.9MB/s 03:15 Patched: 4.3MB/s 02:58 Download from periodical scanning machine: scp -B stasiu@192.168.1.105:~/Fedora-18-Beta-i686-Live-Desktop.iso . Unpatched: 5.5MB/s 02:17 Patched: 6.2MB/s 02:02 Stanislaw