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Category: Video

HDXPRT 4: Troubleshooting an issue with the Convert Videos workload

Yesterday, we received a report that an HDXPRT 4 tester encountered an error message during the Convert Videos workload. During the workload, HDXPRT uses HandBrake 1.2.2 and CyberLink MediaEspresso 7.5 to convert multiple videos to formats optimized for mobile phones.

The error message reports that the video files did not load correctly:

We apologize for the inconvenience that this causes for HDXPRT testers. We’re troubleshooting to determine the cause of the issue and will let the community know as soon as we identify a reliable solution. If you have any insight into this issue, or have encountered any other error messages during HDXPRT testing, please feel free to contact us!


Check out our new WebXPRT video!

At over 305,000 runs and counting, WebXPRT is our most popular benchmark app. Device manufacturers, tech journalists, and developers around the world use WebXPRT because test runs are quick and easy, it runs on almost anything with a web browser, and it provides reliable data about how well devices perform when completing real-world tasks.

WebXPRT is not just for “techies,” however. To help explain what WebXPRT does and why it matters to everyday consumers, we’ve published a new video, What is WebXPRT and why should I care? The video explains the concepts behind some of WebXPRT’s workloads and how even small delays in common online tasks can add up to big headaches and a significant amount of wasted time. We all want to avoid those problems, and WebXPRT can help anyone that wants to see how their device, or a new device they’re thinking about buying, stacks up against the alternatives. We encourage you to check out the video below, which you can also find on YouTube and If you have any questions about WebXPRT, please let us know!


What is WebXPRT and why should I care?

Reflecting on 2016

The beginning of a new year is a good time to look back on the previous 12 months and take stock of everything that happened. Here’s a quick recap of a very busy year:

In 2016, the XPRTs travelled quite a bit. Eric went to CES in Las Vegas, Mark attended MWC in Barcelona, and Bill flew out to IDF16 in Shenzhen.

We also sent a team to Seattle for the first XPRT Women Code-A-Thon, an event we’re very proud to have sponsored and co-hosted along with ChickTech, a nonprofit organization dedicated to increasing the number of women in tech-related fields. The Code-a-thon also served as inspiration for an eight-part video series entitled Women Coding for Change. The series explains the motivation behind the Code-a-thon and profiles several of the participants. If you haven’t watched the videos, check them out. They’re well worth the time.

Speaking of videos, we also published one about Nebula Wolf, the mini-game workload produced through our first collaboration with the North Carolina State Senior Design Center. That experience was promising enough for us to partner with another student team this past fall, which resulted in a virtual reality app that we hope to share with the community in the near future.

Of course, we also continued work on our suite of benchmark tools and related resources. We released TouchXPRT 2016 to the public, published the Exploring TouchXPRT 2016 white paper, and released the TouchXPRT 2016 source code to community members.

In 2016, we unveiled the XPRT Weekly Tech Spotlight, a new way for device vendors and manufacturers to share verified test results with buyers around the world. We put 46 devices in the spotlight throughout the year and published Back-to-School, Black Friday, and Holiday device showcases.

In the last quarter of 2016, we celebrated our most widely-used benchmark, WebXPRT, passing the 100,000-run milestone. WebXPRT is still going strong and is as useful and relevant as ever!

Finally, we ended the year with the exciting news that we’re moving forward with efforts to develop a machine-learning performance evaluation tool. We look forward to engaging with the community in the coming year as we tackle this challenge!

As always, we’re grateful for everyone who’s helped to make the BenchmarkXPRT Development Community a strong, vibrant, and relevant resource for people all around the world. Here’s to a great 2017!


So easy a child can do it!

Tomorrow we are releasing a new video featuring CrXPRT. This one is set in a school science fair, where “Ellie Smith” explains how she used CrXPRT to help her school decide which Chromebook to buy. We were lucky enough to get a thoroughly professional and charming young actress to play the role of Ellie. (I have a tiny cameo as the guy in the gray sport coat at the back of the room.)

Before we started shooting the video, we asked an actual 10-year-old to install and run CrXPRT. I hate to sound like an old commercial, but it really was so simple that a child could do it!

We also created a faux science report to go with the video. An adult—not a sixth-grader—wrote the report, but the results in it and in the video are real. (You can follow the links in the science report to see the real-world results online.)

When it goes live, you’ll find the video and the report on, as well as on YouTube and SlideShare. We hope you’ll enjoy seeing Ellie’s project!


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An XPRT training course

We have a couple of exciting announcements today! A few weeks ago, we promised something special for BatteryXPRT, and we can now show off the all new BatteryXPRT training course. The BatteryXPRT training course is an online, interactive, multi-media tool designed to make learning about the benchmark easy and enjoyable.

You can easily navigate to detailed videos and graphics explaining how to build the benchmark from source code, how to configure your device, how results are calculated, and much more. It’s like the BatteryXPRT design document, white paper, and user manual have come to life!

BattXPRT training

In addition to following the link above, you can also find the course at The course works on most popular browsers in Windows and OSX.

In other news, we have a name for the Chrome benchmark, CrXPRT. Thanks for all the suggestions, and let us know what you think of the name.

As promised last week, the CrXPRT Design Document is available to the development community today.  You’ll find it on the CrXPRT tab in the members’ area. If you’re not yet a member, we’d love for you to join here.

If you have any questions about CrXPRT of feedback on the BatteryXPRT course, feel free to contact us at


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Back to the source

Last week, we released MobileXPRT CP1.1.This week, we released the source code for MobileXPRT CP1.1. You can download it here (login required). The procedure for building it is the same as for the previous CP. As we discussed in Kick the tires. Look under the hood, it’s easy to set up the environment and all the necessary software is free.

We believe that one of the most important things we can do is make the source code available. We believe that increasing the transparency of the benchmarking process and stimulating the participation of industry players and the public in the definition, development, understanding, and auditing of the benchmarks will lead to better benchmarks.

You may be thinking “Then why not open source the benchmark?” The short answer is that we need to make sure that the results from any version of our benchmarks are ones you can trust. You can watch Bill discuss this in BenchmarkXPRT: It’s not a benchmark.

We believe that the community model—which gives you total visibility into the benchmark, allows you to run your own experiments and contribute to future versions of the benchmark, and still protects the integrity of the results—strikes the right balance.

If you’re not a member, please consider joining. It’s easy.

If you are a member, check out the code and tell us how it can be better!


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