From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qt0-x22f.google.com (mail-qt0-x22f.google.com [IPv6:2607:f8b0:400d:c0d::22f]) (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 ECC133BA8E for ; Sun, 5 Nov 2017 15:15:04 -0500 (EST) Received: by mail-qt0-x22f.google.com with SMTP id 31so8690212qtz.9 for ; Sun, 05 Nov 2017 12:15:04 -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=w4FR2M9/Accr/eDxxb2QWkChBrTns0mSq72XGNv5508=; b=kuZIgOwlYV669TF+7L8iNN76wjlWjUwv4Nu8r5k4CAoXrdaoMMo3/qsX7Hi00JHCR+ mE9U5NlUdCgn3xhYvC1JB2jz5RVTC/LuHf0gfanu5g/8SCHi5UagksQs+MPYxq7v18Pt 3TMfLHFJ+VcuXpRGB/Phvi9ojCcuJ/wzhSfxZkupF5EizBuHyycyEf9FVP4bYXHe4/tA +VTfR1Y838JtLVidZeeRgnp/RN6KVC0wPaO1xZ+2KMytVIarVe2FhiDN266viywM8BuU 1/TAVNzAVTO20AnM9npZSHo6IiIf7ih/DQEHNjyoxWPkh8HxWBmOf1sTkRK99ZMlcD1g fmJA== 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=w4FR2M9/Accr/eDxxb2QWkChBrTns0mSq72XGNv5508=; b=e9EqU8ULpQyjhTSY1FO2tf6hy3dAELjXPDghXLg0Po7Y4EADQcAKHh+r/51958Hx5O ekIqCpnP3trhKXnJS/aVtWE8v8w0ZQGkCqO6P5SU9T3hTZfKZmum5Mc3eKPkJUR2Fh6u fDFSvXpvCgJ6zG+OXM5CMJcKoxEauuRjCH7pBlrb7i3iqprrgLi3V3Q/N40Cz6UEIOFw 3aUk6WAv99xghlM8JLEuUj8iuTo4sriJwNmic1koFH8rd2PhzgXv8nsiQPpQCt5LJodX F/+x5GAQdGM8GO79NNhJ9oXoK7pVXg71pVs/3SZ2D/4cKOQvAay20D/N3fkJKXGEtGtp bWNA== X-Gm-Message-State: AMCzsaX+mzj4E9olWCmB3Bz1x0Mgxs5KjP0Xw9FujJ/T/auuSPvP/DTq I/ADle3f6m/f+ncYks2I9T/MnTbvoakObtke3HM= X-Google-Smtp-Source: ABhQp+TX/kskywpo4zDBp5Z+UEmyojY/WvJ0e2mQyjgYp1Atb9izjB53vHJEw3r/l390Z7JKUlsIpoA5//o0+U/KhVY= X-Received: by 10.237.61.49 with SMTP id g46mr20034010qtf.233.1509912904535; Sun, 05 Nov 2017 12:15:04 -0800 (PST) MIME-Version: 1.0 Received: by 10.140.80.133 with HTTP; Sun, 5 Nov 2017 12:15:03 -0800 (PST) Received: by 10.140.80.133 with HTTP; Sun, 5 Nov 2017 12:15:03 -0800 (PST) In-Reply-To: <1442452F-518E-4DB2-852B-2ACA9CEBB869@gmail.com> References: <535CD0D7-CB3A-4C42-AB13-548313F9002A@gmail.com> <3FA33ADA-E5C8-4DD1-841E-3A8E558BAADC@gmail.com> <3D513EEE-348B-4770-9D65-3C5F1320540C@gmail.com> <1442452F-518E-4DB2-852B-2ACA9CEBB869@gmail.com> From: Jonathan Morton Date: Sun, 5 Nov 2017 22:15:03 +0200 Message-ID: To: Pete Heist Cc: make-wifi-fast@lists.bufferbloat.net Content-Type: multipart/alternative; boundary="001a11426db05111b5055d41fe16" Subject: Re: [Make-wifi-fast] Flent test hardware 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: Sun, 05 Nov 2017 20:15:05 -0000 --001a11426db05111b5055d41fe16 Content-Type: text/plain; charset="UTF-8" Regarding single-core performance, the Sempron 3850 may be better in that respect than my E-450, which itself is perfectly capable of handling GigE at line rate (unlike an Atom). It has an improved core design which may compensate for the lower clock speed. There are three members of AMD's "cat" family: Bobcat, Jaguar, Puma. My E-450 has Bobcat, which is the oldest and maxes out at 1.65 GHz (there is no turbo clock). Various consoles got Jaguar cores, as did the Kabini APU which forms your Sempron. The Puma core is the newest, and appears in "Carrizo-L" APUs in last year's netbooks. The design improvements between Bobcat and Jaguar are much larger than between Jaguar and Puma; consult Agner Fog's optimisation manuals if you want to know the gory details. The AM1 Kabini family also includes the Athlon 5150 and 5350, which are exactly the same as the 3850 except for clock speeds. If the 3850 isn't fast enough, you can get an easy 50% boost from upgrading to the 5350. - Jonathan Morton --001a11426db05111b5055d41fe16 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable

Regarding single-core performance, the Sempron 3850 may be b= etter in that respect than my E-450, which itself is perfectly capable of h= andling GigE at line rate (unlike an Atom).=C2=A0 It has an improved core d= esign which may compensate for the lower clock speed.

There are three members of AMD's "cat" family:= Bobcat, Jaguar, Puma.=C2=A0 My E-450 has Bobcat, which is the oldest and m= axes out at 1.65 GHz (there is no turbo clock).=C2=A0 Various consoles got = Jaguar cores, as did the Kabini APU which forms your Sempron.=C2=A0 The Pum= a core is the newest, and appears in "Carrizo-L" APUs in last yea= r's netbooks.=C2=A0 The design improvements between Bobcat and Jaguar a= re much larger than between Jaguar and Puma; consult Agner Fog's optimi= sation manuals if you want to know the gory details.

The AM1 Kabini family also includes the Athlon 5150 and 5350= , which are exactly the same as the 3850 except for clock speeds.=C2=A0 If = the 3850 isn't fast enough, you can get an easy 50% boost from upgradin= g to the 5350.

- Jonathan Morton

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