From: Bob Copeland <me@bobcopeland.com>
To: Dani Camps <danicamps81@gmail.com>
Cc: Johannes Berg <johannes@sipsolutions.net>,
linux-wireless@vger.kernel.org
Subject: Re: wmediumd performance penalty
Date: Fri, 5 Sep 2014 09:03:25 -0400 [thread overview]
Message-ID: <20140905130325.GA26808@localhost> (raw)
In-Reply-To: <CAD3NH5XEfHU7KMWwrmZdZz9LKP_86b4EFogpHrnC+AhREHjOPw@mail.gmail.com>
On Tue, Sep 02, 2014 at 10:06:30AM +0200, Dani Camps wrote:
> 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
Indeed you can.
For what it's worth, although I can't speak for wmediumd at the moment,
in the precursor to it that I wrote, I got about 25 Mbps achieved with
a phy rate of 54 Mbps when simulating the physical layer, which I think
is pretty close to real world overhead in non-agg case. With plain old
mac80211_hwsim you can get several Gbps.
--
Bob Copeland %% www.bobcopeland.com
next prev parent reply other threads:[~2014-09-05 13:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-01 15:38 wmediumd performance penalty Dani Camps
2014-09-01 18:52 ` Johannes Berg
2014-09-02 7:31 ` Dani Camps
2014-09-02 7:55 ` Johannes Berg
2014-09-02 8:06 ` Dani Camps
2014-09-05 13:03 ` Bob Copeland [this message]
2014-09-05 14:10 ` Bob Copeland
[not found] ` <CAD3NH5UEPKw58ObsW+8dpLRFMHTEq91TSd6RAkV3H8E76Ooamw@mail.gmail.com>
2014-09-08 13:02 ` Bob Copeland
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