From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-xd2f.google.com (mail-io1-xd2f.google.com [IPv6:2607:f8b0:4864:20::d2f]) (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 C71BC3B29E for ; Sat, 16 Jan 2021 12:48:37 -0500 (EST) Received: by mail-io1-xd2f.google.com with SMTP id n4so24552548iow.12 for ; Sat, 16 Jan 2021 09:48:37 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc:content-transfer-encoding; bh=XrwevO5s7EqEU0qxU0SIMlC6By3Pj7mAHt7zWuaCoQo=; b=lNLegpDQ0YUpqLOGlfS/sKL8fOHDsomtgj9FOk1JdWWP52OzmXzOvYUsxznV5RwWb2 kW7I12uFDmSPb/LjO06Y0UAUaPqN9n1PqBW4BqGOTVLoCTOvpp5vReUnEhHKyoCvdLri fkyaP6AsslaJrp87oZ5mvxpQ62JNyiuRUj8ni4zSkIiGEQRJU6Rk6oTSosmfid3TbliI WIMHJUhm0szQfumwpSaKiV0fdA4jbT08VOPRPwpIwX51NYYW0njAgSSNizJTiirROD/x Ewsb0Xs/BzmJkxrihCzfkxrQG+isT70csToIOo9lUNNwBHxdGsh+NVNorFx/FBqhfQL0 CCng== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc:content-transfer-encoding; bh=XrwevO5s7EqEU0qxU0SIMlC6By3Pj7mAHt7zWuaCoQo=; b=W+P9tXVHdE4CrQs52Rz7b6ZA6xbsEnFQMXe4RsV1/pSEMP+U55TSkUTmlGZCBTglzV kQ9/IDS6tX2+3zzb2rnKuw1IUHSlsumtUOkYOXZZSK1wiOr5t6nOpS8K1GlG+g1iCEx/ 1ZIkEzaxqhe+gThI4tM/P0rgs+o9kovf7bXs4v4VossAm6gLi401KGRI3tpApl8ovu/0 GP8pZQajlUkkeicZooJD9ack9KfqsfHLZmN4KMx3eYsyBvK4uUKoqKtBqU86jx0jcqLY OvQewVt9wQcr2Z4KFenf4AkmGab0ZHOfiZOOu81vsYRW/Wx0xL/HTo9BEi2k3AdGdcCY XfHA== X-Gm-Message-State: AOAM532vPcHGu1moLehsBkks8ppa4sI+5zc/QlZjFo8A27FMH9aFIhlG Drn+ALvU+ujA/k96afNdONFDallVy2egut9XZyE= X-Google-Smtp-Source: ABdhPJxxYHlQQDSWGLLLU4fyDErvDbq83ZoGCdLFWLyT4U+3n63A+UXq+cguzacelzWraOFsf05trUOwiZ0Ae7l4y2Q= X-Received: by 2002:a5e:da01:: with SMTP id x1mr9144059ioj.100.1610819317145; Sat, 16 Jan 2021 09:48:37 -0800 (PST) MIME-Version: 1.0 References: <87a6tarwy3.fsf@toke.dk> In-Reply-To: From: Dave Taht Date: Sat, 16 Jan 2021 09:48:25 -0800 Message-ID: To: Michael Yartys Cc: Bob McMahon , Make-Wifi-fast Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Make-wifi-fast] Weird periodic latency X-BeenThere: make-wifi-fast@lists.bufferbloat.net X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 16 Jan 2021 17:48:37 -0000 That implies it is doing a channel scan. Dumb. https://blog.cerowrt.org/post/disabling_channel_scans/ but what you encountered seemed more disabling than that, and the ath10k is supposed to be able to do background channel scans. On Sat, Jan 16, 2021 at 6:47 AM Michael Yartys wrote: > > I'm pretty sure I've managed to figure out what causes the short sharp pe= riodic latency spikes. The Gnome location service uses the surrounding wire= less networks as one of the methods to determine your location. When it's t= urned on I get the following results: > > https://imgur.com/a/pNXuVRe > > When it's disabled the latency spikes are gone (and notice that AQL is wo= rking here as there is some background traffic from other clients): > > https://imgur.com/a/v4wWkAC > > Now, I wasn't able to reproduce the weird roller coaster like latency tha= t I saw previously. I rebooted the laptop before I did these tests, so I gu= ess that solved it. > > Michael --=20 "For a successful technology, reality must take precedence over public relations, for Mother Nature cannot be fooled" - Richard Feynman dave@taht.net CTO, TekLibre, LLC Tel: 1-831-435-0729