From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>
To: bloat@lists.bufferbloat.net
Subject: Re: [Bloat] Steam In Home Streaming on ath9k wifi
Date: Sun, 26 Nov 2017 12:54:04 +0100 [thread overview]
Message-ID: <20171126115404.zz34d2ibo4yoyibf@sesse.net> (raw)
In-Reply-To: <ca0cc7d1-9cfc-ec97-a3eb-3df930f9f4e5@gmail.com>
On Sun, Nov 26, 2017 at 11:53:04AM +0100, Jan Ceuleers wrote:
>> Another explanation for latency spikes on the order of 100ms is that a
>> periodic (and wholly unnecessary) scan for other APs is run, which
>> requires the wifi radio to be temporarily tuned away from the currently
>> associated AP's frequency.
> My understanding is that APs that operate on channels that are wider
> than 20MHz must back off to 20MHz in case they detect other SSIDs that
> are competing for the wider channel.
It's not about the AP, it's about the client. (APs can detect extension
channel interference without doing a scan, although I don't know if you need
this fallback at all on 5 GHz.)
/* Steinar */
--
Homepage: https://www.sesse.net/
next prev parent reply other threads:[~2017-11-26 11:54 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-21 19:08 Hal Murray
2017-11-22 10:31 ` Neil Davies
2017-11-23 17:48 ` Caleb Cushing
2017-11-24 9:20 ` Hal Murray
2017-11-24 9:34 ` Neil Davies
2017-11-26 7:25 ` Caleb Cushing
2017-11-26 7:29 ` Caleb Cushing
2017-11-26 7:55 ` Jan Ceuleers
2017-11-26 10:05 ` Jonathan Morton
2017-11-26 10:53 ` Jan Ceuleers
2017-11-26 10:55 ` Jonathan Morton
2017-11-26 11:54 ` Steinar H. Gunderson [this message]
2017-11-26 13:03 ` Jan Ceuleers
2017-11-26 13:05 ` Jan Ceuleers
2017-11-26 13:13 ` Steinar H. Gunderson
2017-11-26 17:53 ` Dave Taht
2017-11-26 18:43 ` Jan Ceuleers
2017-11-26 23:11 ` Dave Taht
2017-12-04 7:24 ` Caleb Cushing
-- strict thread matches above, loose matches on Subject: below --
2017-11-18 22:14 Caleb Cushing
2017-11-19 16:28 ` Toke Høiland-Jørgensen
2017-11-19 21:18 ` Caleb Cushing
2017-11-19 21:27 ` Toke Høiland-Jørgensen
2017-11-19 22:03 ` Caleb Cushing
2017-11-19 22:13 ` Dave Taht
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