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Re: CPU security vulnerability
To: CRTech <crtech@crtech.org>
Subject: Re: CPU security vulnerability
From: Fred Gleason <fredg@paravelsystems.com>
Date: Mon, 8 Jan 2018 12:40:00 -0500
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On Jan 8, 2018, at 12:17, Willie Barnett <wbradiolists@gmail.com> wrote:

So now we can "look forward" to reducing the performance of our 3Ghz CPU's to about 2Ghz, to implement the current fixes... 

I think those are extreme “worst case” numbers. Based on my own testing plus the experience of others, it looks like a 0% - 5% degradation is a more realistic “real world” estimate. Not great obviously, but the world is by no means ending.


if they are even available for these machines or for WIN XP. :(

Presumably not, as the vendor end-of-lifed XP some time ago.  Code rot is a terrible thing...


Cell phones are also affected... Apple & Droid. This looks like a real "winner" here. :(

Some, to be sure. It depends on the specific ARM SoC used in a given model handset, as well as how the vendor has implemented the remediation  in the OS kernel. Not all ARM CPUs are affected.

Cheers!


|----------------------------------------------------------------------|
| Frederick F. Gleason, Jr. |              Chief Developer             |
|                           |              Paravel Systems             |
|----------------------------------------------------------------------|
|          A room without books is like a body without a soul.         |
|                                         -- Cicero                    |
|----------------------------------------------------------------------|

Follow-Ups: Re: CPU security vulnerability
(Willie Barnett <wbradiolists@gmail.com>, 8 Jan 2018 17:52:14 -0000)
RE: CPU security vulnerability
(Jon Foreman <Jon@ksgn.com>, 8 Jan 2018 18:20:57 -0000)
References: CPU security vulnerability
(Willie Barnett <wbradiolists@gmail.com>, 8 Jan 2018 15:33:48 -0000)
Re: CPU security vulnerability
(Willie Barnett <wbradiolists@gmail.com>, 8 Jan 2018 17:18:04 -0000)
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