Return-path: Received: from mail-pd0-f179.google.com ([209.85.192.179]:42846 "EHLO mail-pd0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751503AbaIBIGa (ORCPT ); Tue, 2 Sep 2014 04:06:30 -0400 Received: by mail-pd0-f179.google.com with SMTP id z10so7945554pdj.24 for ; Tue, 02 Sep 2014 01:06:30 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <1409644512.1808.2.camel@jlt4.sipsolutions.net> References: <1409597534.2703.9.camel@jlt4.sipsolutions.net> <1409644512.1808.2.camel@jlt4.sipsolutions.net> Date: Tue, 2 Sep 2014 10:06:30 +0200 Message-ID: (sfid-20140902_100636_169988_F6C9C2C7) Subject: Re: wmediumd performance penalty From: Dani Camps To: Johannes Berg Cc: linux-wireless@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: Hi, OK, then the results I am getting are indeed surprising. To test bandwidth I am using an iperf UDP transfer of 100Mbps and around 30 Mbps is all it gets (without wmediumd). I will further test only mac80211_hwsim (without wmediumd), which I believe can be used to set up topologies as well with the group feature as described here: https://github.com/cozybit/open80211s/wiki/HwsimTestTemplate Best Regards Daniel On Tue, Sep 2, 2014 at 9:55 AM, Johannes Berg wrote: > On Tue, 2014-09-02 at 09:31 +0200, Dani Camps wrote: >> Hi, >> >> I am running on a virtual machine with Ubuntu. Does mac80211_hwsim not >> schedule the packet reception time to the other radio(s) according to >> the PHY rate in the packet in order to simulate transmission time over >> the air ? > > No, it schedules it immediately. > > johannes >