From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-x22c.google.com (mail-qk0-x22c.google.com [IPv6:2607:f8b0:400d:c09::22c]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.bufferbloat.net (Postfix) with ESMTPS id D7C7D3B29E for ; Sun, 26 Nov 2017 05:05:22 -0500 (EST) Received: by mail-qk0-x22c.google.com with SMTP id n3so29057050qkn.11 for ; Sun, 26 Nov 2017 02:05:22 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=p+dHhAE/LAT8kOXXn8DZVv43hxIFUbE+fm/0IzcnIy8=; b=TflBFSYAbYaNtnoeI3zAhCfCAmAYPvHKxnU1zmZCuEGnyX6xUcNebLpCW21hbOCbSK fDpE1elaIpoPJ7QBrQ0Diuf8wR5FFTL2Qbq/R3usFhMJJKV0K+HWweg4S58eN9SJBGDw XsS2iFZRFmhCwwnDNUkPad7q/0e5aFTYF0q6O9CpccCavcNhVWcLe3GDUu5lpi61mgfR AdLo+DJuEaIXOO0XeRniPubTGUYq3Epya5xcMp0VIDxcRK8w9IqRBVlvHpbyROzg4KtN dEa4TW/j+lujmLhDm0Tll7SM8x4fKBvi1sdKvCJBXhrj7iXfJ+RgN07L8m6I3bZ1T+5O KWBA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=p+dHhAE/LAT8kOXXn8DZVv43hxIFUbE+fm/0IzcnIy8=; b=DubVBvZiZ/19FUCNWpRNrkMjF1EttDqWsLFqBTLi9d5gHNgedMhtrFrjn6law9lc2b yB+sU1WFwHi4iGLj0lxRF/RqVw4w8V+Awc1lQm1NCNyQp9CK3TKkIVlVkrhPcwesoon/ PZO5N9wqaRNltY3ieXfolUG3r9U1SGYB96JPhmBXecbkmAxvQbOLGaXsHIfTLxpkl1bx mlH+iPWuJgtvWLVY+hMhWUKHNPMIe4cdtPYDLlfH347MEKLrZZM8H+4pnrI9LUjJuc4d VYGRwg5TedK4c3b3PzrW4gX70hf5oizjcB7rW8JXDjntCZA7TRB0+vnwtHkdfqFs9tTP WE4A== X-Gm-Message-State: AJaThX4jJLFbNSaQCy1CJ7Ru/ebdl+E/0AvWa8GegFXkABsId53REYau eh2hV2K6ZVbcqQrsIMYAIAZ/X3m+mSUvfZhuZw0= X-Google-Smtp-Source: AGs4zMaNEMl941m6X6gBRR5q5BC83AUukp+i5Y8hHy4dvQj+ZrMmOsxYc3rs202zb1G5/5M2B7cCuqTeUybhVouGh/s= X-Received: by 10.55.91.133 with SMTP id p127mr9071708qkb.135.1511690722467; Sun, 26 Nov 2017 02:05:22 -0800 (PST) MIME-Version: 1.0 Received: by 10.140.102.179 with HTTP; Sun, 26 Nov 2017 02:05:21 -0800 (PST) Received: by 10.140.102.179 with HTTP; Sun, 26 Nov 2017 02:05:21 -0800 (PST) In-Reply-To: <4a37c330-cb03-23eb-f705-743c6cb30c15@gmail.com> References: <20171124092021.DC01D40605C@ip-64-139-1-69.sjc.megapath.net> <4a37c330-cb03-23eb-f705-743c6cb30c15@gmail.com> From: Jonathan Morton Date: Sun, 26 Nov 2017 12:05:21 +0200 Message-ID: To: Jan Ceuleers Cc: bloat Content-Type: multipart/alternative; boundary="001a114ea37685e4d9055edfec9e" Subject: Re: [Bloat] Steam In Home Streaming on ath9k wifi X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 26 Nov 2017 10:05:22 -0000 --001a114ea37685e4d9055edfec9e Content-Type: text/plain; charset="UTF-8" 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. - Jonathan Morton --001a114ea37685e4d9055edfec9e Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Another explanation for latency spikes on the order of 100ms= is that a periodic (and wholly unnecessary) scan for other APs is run, whi= ch requires the wifi radio to be temporarily tuned away from the currently = associated AP's frequency.

- Jonathan Morton

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