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From: Felix Fietkau <nbd@nbd.name>
To: "Toke Høiland-Jørgensen" <toke@redhat.com>,
	linux-wireless@vger.kernel.org
Cc: johannes@sipsolutions.net
Subject: Re: [PATCH 4/6] mac80211: minstrel_ht: significantly redesign the rate probing strategy
Date: Mon, 25 Jan 2021 22:27:12 +0100	[thread overview]
Message-ID: <76519c4a-9653-1c53-2b25-09b3c500c999@nbd.name> (raw)
In-Reply-To: <87eei8d86d.fsf@toke.dk>

On 2021-01-25 22:21, Toke Høiland-Jørgensen wrote:
> Felix Fietkau <nbd@nbd.name> writes:
> 
>> On 2021-01-25 12:56, Toke Høiland-Jørgensen wrote:
>>> Felix Fietkau <nbd@nbd.name> writes:
>>>> With this approach, we finally get a very small delta in throughput when
>>>> comparing setting the optimal data rate as a fixed rate vs normal rate
>>>> control operation.
>>> 
>>> Can you quantify this "very small delta"? Would love to see some
>>> benchmark data :)
>> Based on a quick test it seems to be around 5% (sometimes less) at VHT80
>> MCS6 nss=4 with ~350 mbit/s TCP throughput. I guess I might be able to
>> bring that down even further, once I optimize it some more.
> 
> Cool! And pre-patch?
Some users reported more than 30%

- Felix

  reply	other threads:[~2021-01-25 23:46 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-24 12:28 [PATCH 1/6] mac80211: minstrel_ht: use bitfields to encode rate indexes Felix Fietkau
2021-01-24 12:28 ` [PATCH 2/6] mac80211: minstrel_ht: update total packets counter in tx status path Felix Fietkau
2021-01-24 12:28 ` [PATCH 3/6] mac80211: minstrel_ht: reduce the need to sample slower rates Felix Fietkau
2021-01-24 12:28 ` [PATCH 4/6] mac80211: minstrel_ht: significantly redesign the rate probing strategy Felix Fietkau
2021-01-25 11:56   ` Toke Høiland-Jørgensen
2021-01-25 20:46     ` Felix Fietkau
2021-01-25 21:21       ` Toke Høiland-Jørgensen
2021-01-25 21:27         ` Felix Fietkau [this message]
2021-01-24 12:28 ` [PATCH 5/6] mac80211: minstrel_ht: show sampling rates in debugfs Felix Fietkau
2021-01-24 12:28 ` [PATCH 6/6] mac80211: minstrel_ht: remove sample rate switching code for constrained devices Felix Fietkau
2021-01-25 19:25 ` [PATCH 1/6] mac80211: minstrel_ht: use bitfields to encode rate indexes kernel test robot
2021-01-25 19:25   ` kernel test robot

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