Tag Archive for Benchmarking

Benchmarking the Raspberry Pi 3 Model A+

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 other words: it’s benchmark time once again.

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Custom PC, Issue 152

Custom PC Issue 152In 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.

Linux User & Developer, Issue 161

Linux User & Developer Issue 161To 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.

PC Pro, Issue 213

PC Pro, Issue 213This 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.