The launch of the new Raspberry Pi 4 single-board computer brought with it, as usual, my detailed analysis over on Medium. The post has drawn considerable interest, in particular the benchmarking and thermal imagery aspects. German publisher Computec got in touch shortly after publication to ask if they could licence the post for translation and republication in the local enthusiast magazine Raspberry Pi Geek – and that issue is on shelves now.
Effectively a blow-by-blow recreation of the Medium post, translated and reformatted for the confines of a paper magazine, the seven-page feature walks through what’s new in the design, carries out numerous benchmark tests from synthetic and real-world performance workloads to power draw and – as has become a signature of mine – high-quality thermal imagery showing just where the extra power demanded by the Raspberry Pi 4 is going on the board.
Each benchmark includes a graph for easy at-a-glance performance comparisons between the new model and every version back to the original launch Model B. High-quality photography of the board and its various components are also featured, and have translated particularly well to the page.
Back in March, the release of the Raspberry Pi 3 Model B+—the Pi 3 B+ to its friends—brought a chance to take stock and review just how far the project had come since its launch via a series of benchmarks. Now the launch of the Raspberry Pi 3 Model A+ brings a bold claim: a dramatic drop in size, weight, and price over the Pi 3 B+, but without any loss in performance.
In this month’s Hobby Tech column I review the Proster VC99 multimeter, the Intel/Arduino Genuino 101 microcontroller development board, and discuss the challenges in developing meaningful benchmarks for testing devices where memory is measured in kilobytes.
Unusually for a hardware review, the multimeter was actually a personal purchase: I’d been using a Maplin-branded multimeter for quite some time, but the low cost and seemingly broad features of the Proster VC99 – also known as the Vichy 99, and sold under a variety of badges – convinced me it was time for an upgrade. While doing so cost me a back-lit display, I gained a variety of functions from frequency counting up to a neat analogue bar-graph on the display for seeing spikes and dips that would otherwise be lost on a numerical output.
The frequency counter came in particularly handy for my Genuino 101 review: writing a simple Arduino Sketch which does nothing more than toggle a pin on and off as fast as possible, I was able to read how quickly that happened to give me an idea of the IO performance of the Genuino compared with other Arduino boards I have lying around. Coupled with a look at the Intel Curie module which powers the device, providing Bluetooth connectivity and an integrated accelerometer, that’s enough for a solid review.
I don’t want to do solid reviews, though, I want to do great reviews, so the last page of this month’s five-page spread looks at how I benchmarked the compute performance of the Genuino 101 against an Arduino Nano for a direct, head-to-head comparison. It’s not as easy as it sounds: with mere kilobytes of memory, it’s not like I could just install PC Mark and be done with it. Interested parties will find a detailed explanation of how I went about modifying the traditional Dhrystone and Whetstone benchmarks to run on both devices, including trimming things to fit into the Arduino Nano’s tiny memory allowance, and how to interpret the results.
All this, plus stuff by people who aren’t me, is available at your nearest supermarket, newsagent, or from the comfort of your home via digital distribution services including Zinio.
To say this month’s Linux User & Developer is a bumper issue is something of an understatement: in addition to my usual four-page news spread, you’ll find a three-strong group test of Steam Machines and a detailed step-by-step guide to building your own Linux box from a pile of parts.
First, the group test. Editor Gavin Thomas contacted me with the news that they had an Alienware Steam Machine in, and asked whether I would be able to source and review a rival device for a head-to-head. I went one better, the overachiever that I am, and thanks to the very lovely people at CyberPower and Zotac I was able to pick up a Syber and NEN to be run through their paces alongside the Alienware.
For Linux User & Developer, the Steam Machines were very new territory. The magazine has previously focused largely on professional uses for Linux, but the launch of mainstream-targeted console-beating gaming PCs running Steam OS – Valve’s gaming-centric customisation of Debian Linux – couldn’t be ignored. I started by designing a series of benchmarks which could be run across all three machines in order to provide a performance comparison, which then needed to take into account the price difference between the two entry-level machines from Alienware and CyberPower and the top-end Zotac NEN. The winner? Well, you’ll have to read the review.
A major group test like this would normally be enough, but Gavin also asked me to come up with a cover feature for the issue: building your own Linux machine. As with the group test, this issue marks the first time Linux User & Developer has strayed into the PC-building arena, and Gavin was looking for someone who could lend an expert eye to the hardware side of the feature.
After an initial hiccough with a parts supplier that let me down, the wonderful people at Overclockers UK were kind enough to loan me a shopping cart full of hardware, including an Intel Skylake processor. The specifications of the machine were kept low enough to appeal to buyers on a budget looking for a future-proof bargain, while having enough poke to ensure a pleasant experience. Naturally, the hardware was chosen specifically with Linux compatibility in mind – though the Skylake family of processors does require the Linux 4.4 kernel or newer to run at its full potential, which is covered in the software-centric second half of the feature.
Issue 161 is definitely a personal highlight, containing as it does such a large percentage of contents from my trusty keyboard. You can see the result for yourself with a trip to your local supermarket, newsagent, or through digital distribution services such as Zinio.
This month’s issue of Dennis Publishing’s PC Pro magazine sees my first contribution, and while it’s a minor one it’s still worth celebrating.
As with many mags, PC Pro has taken a look at the Raspberry Pi sub-$35 microcomputer, running an in-depth review on its capabilities and specifications.
As part of the review PC Pro used details I had gathered for my coverage on Bit-Tech, including the benchmark results from my pretty exhaustive testing. At some point, I may revisit the benchmarking to get a more thorough idea of the true performance of the Pi – but to do so I will likely need to compile the benchmark code manually to optimise it for the Pi’s ARMv6 processor.
My contribution makes up only a small portion of the review – which is well worth reading, by the way – but it’s always nice to see my name in a new magazine.
PC Pro Issue 213 is in shops now, or can be downloaded from the Zinio website.
"The nicest documentation I've seen with any hardware, possibly ever." - WIRED Magazine "This guide is amazing, very on point with relevant and updated information for all ages." "Excellent! A+!" "Well done. This is what I like most in Raspberry Pi. The documentation." "The book and the hardware would be a great Christmas present for the clever kid (of any age) in your family." "10/10" - OpenLibra
"Not only should it be an essential purchase with the micro:bit, I would recommend getting the book before getting the micro:bit. Definitely recommended." "This is an amazing educational tool." "For a newcomer I would recommend this book and the BBC micro:bit. Together, they will make an excellent coder/DIY enthusiast out of you or your child." "This is definitely the book to get you started." "The best book on micro:bit I've found so far." "A wealth of information on micro:bit and it's easy to read." "Just started reading your book, and it's exactly what I was looking for."
"I'm constantly reading tech manuals. This book is above and beyond ANY tech manual I have ever read! It is readable, understandable and a fine companion for the Pi." "I have been using computer manuals for 40 years and this is one of the best I have ever read." "All I was looking for is combined in this fantastic book." "I bought this book on my Kindle and it has transformed my understanding." "A brilliant book to help you out." "This book is a must have and works very well on my Kindle - thank you so much for writing it."
I hate that companies incentivise disloyalty. Rang @SkyUK to cancel after 13 years as a customer, was immediately told my bill could be slashed by 50% if I stayed. So... why was I paying twice as much as I needed to?
(I cancelled anyway, thus saving 100%. Even better!)