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 ? Best Regards Daniel On Mon, Sep 1, 2014 at 8:52 PM, Johannes Berg <johannes@xxxxxxxxxxxxxxxx> wrote: > On Mon, 2014-09-01 at 17:38 +0200, Dani Camps wrote: >> Dear all, >> >> I am testing a simple 1-hop mesh network over wmediumd. The PHY rate I >> have configured is 54 Mbps, and there is no loss, however the max >> throughput I get is around 14 Mbps. Without wmediumd I get around 30 >> Mbps, which seems reasonable given the 54 PHY rate. As I noted above >> there is no loss probability configured in wmediumd. >> >> My impression is that the performance drop is due to the overhead of >> switching between kernel and user space in wmediumd, however it >> surprises me that the penalty is so high. >> >> Has anyone had a similar experience? Could there be a way to overcome >> this bottleneck? > > What kind of system are you running on? The virtual PHY rate isn't taken > into account at all, so you should see far higher performance. > > johannes > -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
