From: Johannes Berg <johannes@sipsolutions.net>
To: Felix Fietkau <nbd@openwrt.org>
Cc: linux-wireless@vger.kernel.org, karl.beldan@gmail.com
Subject: Re: [PATCH] mac80211: minstrel_ht: fix rounding issue in MCS duration calculation
Date: Tue, 17 Mar 2015 11:03:52 +0100 [thread overview]
Message-ID: <1426586632.1985.5.camel@sipsolutions.net> (raw)
In-Reply-To: <1426240484-37307-1-git-send-email-nbd@openwrt.org>
On Fri, 2015-03-13 at 10:54 +0100, Felix Fietkau wrote:
> On very high MCS bitrates, the calculated duration of rates that are
> next to each other can be very imprecise, due to the small packet size
> used as reference (1200 bytes).
> This is most visible in VHT80 nss=2 MCS8/9, for which minstrel shows the
> same throughput when the probability is also the same. This leads to a
> bad rate selection for such rates.
>
> Fix this issue by introducing an average A-MPDU size factor into the
> calculation.
Applied.
johannes
prev parent reply other threads:[~2015-03-17 10:03 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-13 9:54 [PATCH] mac80211: minstrel_ht: fix rounding issue in MCS duration calculation Felix Fietkau
2015-03-17 10:03 ` Johannes Berg [this message]
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