From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-xd2c.google.com (mail-io1-xd2c.google.com [IPv6:2607:f8b0:4864:20::d2c]) (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 B50F13B2A4 for ; Thu, 25 Feb 2021 08:43:51 -0500 (EST) Received: by mail-io1-xd2c.google.com with SMTP id y202so5912786iof.1 for ; Thu, 25 Feb 2021 05:43:51 -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=BwUi8ch60GDfUZ6i9t0G3fKrkhZAF9J+qvGC/zUzmN0=; b=a6ee8NvAoYDXrLQE4Hh20e28T6qZsyawCUbDTYpu/SGr6c10WciQxSF/TQRmDA57fW KR0Y7Gr0js8Kid+eMooFq+a7N4HI5ugCTCfGMXYLK+OoqCokY4eoGdUBdAjHdvMvcDoa I+jSxCSwW1uvzFP0/76GhAlJGk5xm/mMe0ei5TE2+Hbel4lrB/5TWg3teCt34JCTgTGB sVJJtwyIhnSm6SjRqKMHlTEBjzapi/kD76LsOGv1mw71C+JJELEEh8JvmzdQh/9WrwQJ TNjOMQdj1nu7NjBsnDZoK6/bhDRZNx8pYszEOvdq4sqn0TNJk3MG1QbMETM0Vb8lS4g5 NgJw== 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=BwUi8ch60GDfUZ6i9t0G3fKrkhZAF9J+qvGC/zUzmN0=; b=MN6SzTKpgU8RkHSwLEiEakUgGSI5EpfsAMYHOYpOh8Oskp6vSxbd/u6HemvctRiwMz /kdBOj2taQjFqcjjZslm3nCB+p7OEfIlJ4ougsBzZKRu/mQW1epduELWAMb0ui2Isg0A nk9oi/g0DlvJQ5ziP4+vPXCFceGM25PnGX63GYxwDSEaREfT9N39ZCxxzMBgE/wSqxLV 7wWTltmlrUsBW3sdhI/sZx5r+tPi5x8X1Faze9m8YdnZWsXE4LILpDioZ5B51AdeMDbk a3VMgUirbsHh3YNdfF357eWWzVo7AASinkJnAq92C5TO8DfgMGA+QA6e5Up2AQnEeXEI ZlVg== X-Gm-Message-State: AOAM530u+xmr/tDejV1miO6YXVjvxWaTesb1m8TlzNzw8NsqipOobUED WoJixfnVn8bI/8I24B+qpCtaxEPiVO6jIP5k3jQ= X-Google-Smtp-Source: ABdhPJwL7Lzyh870P7SXgDcIoIo5TsF5E9XAJAHOQBtb2qXmHdurHJMJokujWL+wwk+mbpdys0Z0wtnB1am8SIKKKjY= X-Received: by 2002:a02:9f9a:: with SMTP id a26mr3178401jam.61.1614260631071; Thu, 25 Feb 2021 05:43:51 -0800 (PST) MIME-Version: 1.0 References: <177d80af608.27a9.e972a4f4d859b00521b2b659602cb2f9@superduper.net> <177d9698ff0.27a9.e972a4f4d859b00521b2b659602cb2f9@superduper.net> In-Reply-To: <177d9698ff0.27a9.e972a4f4d859b00521b2b659602cb2f9@superduper.net> From: Dave Taht Date: Thu, 25 Feb 2021 05:43:38 -0800 Message-ID: To: Simon Barber Cc: Sina Khanifar , sam@waveform.com, bloat Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Subject: Re: [Bloat] Updated Bufferbloat Test 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: Thu, 25 Feb 2021 13:43:51 -0000 On Thu, Feb 25, 2021 at 5:38 AM Simon Barber wrote: > > The ITU say voice should be <150mS, however in the real world people are = a lot more tolerant. Because they have to be. A call with 5ms latency is amazing. >A GSM -> GSM phone call is ~350mS, and very few people complain about that= . That said the quality of the conversation is affected, and staying under = 150mS is better for a fast free flowing conversation. Most people won't hav= e a problem at 600mS and will have a problem at 1000mS. That is for a 2 par= ty voice call. A large group presentation over video can tolerate more, but= may have issues with talking over when switching from presenter to questio= ner for example. > > Simon --=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