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Tag Archives: MobileXPRT 3

Following up with MobileXPRT 3 on Android 11

As we discussed last week, we’ve learned that MobileXPRT 3 is crashing after installation on some Android 11 phones. We now know what is causing this behavior: changes to the storage strategy and permissions requirements in Android 11. The new file storage strategy is called scoped storage. By default, scoped storage restricts an app’s storage access to app-specific directories and media, and prohibits general access to external or public directories. This default setting requires an opt-in permissions prompt that MobileXPRT 3 does not currently have. It also prevents third-party apps such as email clients or file managers from being accessing MobileXPRT 3 results files.

To fix this, we are planning to rebuild MobileXPRT 3 to (1) point all of the benchmark’s file references to its private directory, and (2) allow users to zip results files and attach them to results submission emails. While we do not expect that either of these changes will affect performance results, we’ll perform testing to confirm this before we publish the new build.

We don’t expect these changes to take too long, and will keep you updated here in the blog. If you have any questions about the update process or MobileXPRT 3, please let us know!

Justin

New MobileXPRT 3 installations may crash on Android 11

We recently received a tech support inquiry about problems with new MobileXPRT 3 installations on some Android 11 phones. The tester installed MobileXPRT 3 on a selection of phones running Android 11, and the app crashed immediately upon opening. We were able to reproduce the issue on multiple phones in our lab, and currently know that the issue may happen on the Google Pixel 3, Google Pixel 4a 5G, Google Pixel 4XL, Google Pixel 5, and the OnePlus 8T (running Android 11 with an Oxygen OS skin).

MobileXPRT 3 continues to run without issues on Android 9 and 10 phones. When we updated an Android 10 phone with an existing MobileXPRT 3 installation to Android 11, we found that the benchmark ran successfully. This suggests a lack of fundamental incompatibilities between MobileXPRT 3 and current versions of Android 11. Because some of our lab techs experienced crashes immediately after the app asked for permissions, we think it’s possible that new permissions-setting requirements in Android 11 are causing the problem.

We’re currently working to isolate the problem and identify a course of action. We’ll share more information here in the blog as soon as possible. If you’ve encountered this problem in your testing, we apologize for the inconvenience, and we’re thankful for your patience as we work towards a solution.

If you have any information you’d like to share about running MobileXPRT 3 on Android 11, please let us know!

Justin

The XPRTs in 2019: Looking back on an exciting and productive year

2019 is winding down, and we want to take this opportunity to review another exciting and productive year for the BenchmarkXPRT Development Community. Readers of our newsletter are familiar with the stats and updates we post in each month’s mailing, but we know that not all our blog readers receive the newsletter, so we’ve compiled the highlights below.

Trade shows
Earlier this year, Justin attended CES in Las Vegas and Mark travelled to MWC Barcelona. These shows help us keep up with the latest industry trends and gather insights that help to lay the groundwork for XPRT development in the years ahead.

Benchmarks
In the past year, we released MobileXPRT 3, HDXPRT 4, and AIXPRT, our new AI benchmark tool that helps you evaluate a system’s machine learning inference performance. There’s much more to come in 2020 with AIXPRT and several other projects, so expect more news about benchmark development early in the year.

Web mentions
In 2019 so far, journalists, advertisers, and analysts have referenced the XPRTs over 5,000 times, including mentions in more than 190 articles and 1,350 device reviews. This represents a more than 50% increase over 2018.

Downloads and confirmed runs
To date, we’ve had more than 24,800 benchmark downloads and 153,000 confirmed runs in 2019, increases of more than 8% and 10%, respectively, over 2018. Within the last month, our most popular benchmark, WebXPRT, passed the 500,000-run milestone! WebXPRT continues to be an industry-standard performance benchmark upon which OEM labs, vendors, and leading tech press outlets rely.

XPRT Tech Spotlight
We put 47 new devices in the XPRT Tech Spotlight throughout the year and published updated back-to-school, Black Friday, and holiday showcases to help buyers compare devices.

Media and interactive tools
We published a new XPRTs around the world infographic and an interactive AIXPRT installation package selector tool. We’ve received a lot of positive feedback about the tool. We encourage you to give it a try if you’re curious about AIXPRT but aren’t sure how to get started.

We’re thankful for everyone who used the XPRTs, joined the community, and sent questions and suggestions throughout 2019. This will be our last blog post for 2019, but there’s much more to come in 2020, including some exciting new developments. Stay tuned in early January for updates!

Justin

The MobileXPRT 3 source code is now available

We’re excited to announce that the MobileXPRT 3 source code is now available to BenchmarkXPRT Development Community members!

Download the MobileXPRT 3 source here (login required).

We’ve also posted a download link on the MobileXPRT tab in the Members’ Area, where you will find instructions for setting up and configuring a local instance of MobileXPRT 3.

As part of our community model for software development, source code for each of the XPRTs is available to anyone who joins the community. If you’d like to review XPRT source code, but haven’t yet joined the community, we encourage you to join! Registration is quick and easy, and if you work for a company or organization with an interest in benchmarking, you can join the community for free. Simply fill out the form with your company e-mail address and select the option to be considered for a free membership. We’ll contact you to verify the address and then activate your membership.

If you have any other questions about community membership or XPRT source code, feel free to contact us. We look forward to hearing from you!

Justin

A new MobileXPRT 3 build is available

Today, we published an updated MobileXPRT 3 build, version 3.114.2.1, on MobileXPRT.com and in the Google Play Store. The new build fixes an issue that was causing crashes on Xiaomi phones. Xiaomi holds significant market share in China, so we wanted to address the issue as soon as possible.

Xiaomi phones use a proprietary Android-based firmware called MIUI, which requires apps to communicate with the system in a specific way. When we originally built MobileXPRT 3, Android allowed an app’s code to send implicit messages calling certain classes of actions. In MIUI, the code must broadcast explicit messages that call the exact action necessary (e.g., waking from sleep). The requirement can improve security by allowing more granular levels of user control, and save power by restricting the number of unseen tasks that apps can run in the background without a user’s knowledge. The new MobileXPRT 3 build code complies with MIUI’s requirements. Other Android-based platforms will likely require explicit messages in the near future, so we’re hoping the new build will be relatively future proof.

We also fixed a few small UI bugs and improved the accuracy of the system hardware information that the app reports when a user submits a set of results. None of these changes affect performance, so scores from prior MobileXPRT 3 builds are comparable to those from the new build. If you have any questions or comments about MobileXPRT 3, please let us know.

Justin

New XPRTs for the new year

Happy 2019! January is already a busy time for the XPRTs, so we want to share a quick preview of what community members can expect in the coming months.

The MobileXPRT 3 community preview (CP) is still open, but draws to a close on January 18th. If you are not familiar with the updates and changes we implemented in the newest version of MobileXPRT, you can read more in the blog. Members can access this APK on the MobileXPRT tab in the Members’ Area. We also posted an installation guide that provides both a general overview of the app and detailed instructions for each step. The entire process takes about five minutes on most devices. If you haven’t already, give it a try!

We also recently published the first AIXPRT Request for Comments (RFC) preview build, an early version of one of the tools we’re developing to evaluate machine learning performance. You can find more details in Bill’s most recent blog post and on AIXPRT.com. Only BenchmarkXPRT Development Community members have access to our RFCs and the opportunity to provide feedback. However, because we’re seeking broad input from experts in this field, we’ll gladly make anyone interested in participating a member. To gain access to the AIXPRT repository, please send us a request.

Work on the HDXPRT 4 CP candidate build continues, and we hope to publish the preview for community members this month. We appreciate everyone’s patience as we work to get this right. We think it will be worth the wait.

On a general note, I’ll be travelling to CES 2019 in Las Vegas next week. CES is a great opportunity for us to survey emerging tech and industry trends, and I look forward to sharing my thoughts from the show. If you’ll be there and would like to discuss any aspect of the XPRTs in person, let me know.

Justin

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