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Tag Archives: MobileXPRT

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 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

Principled Technologies and the BenchmarkXPRT Development Community release a preview of AIXPRT, a tool designed to help testers evaluate machine learning performance

Durham, NC, March 4 — Principled Technologies and the BenchmarkXPRT Development Community release the AIXPRT Community Preview. AIXPRT is a free tool that makes it easier to evaluate a system’s machine learning inference performance by running several common image-classification workloads.

The AIXPRT Community Preview build includes support for the Intel© OpenVINO™, TensorFlow™, and TensorFlow with NVIDIA© TensorRT™ toolkits to run image-classification workloads with ResNet-50 and SSD-MobileNet v1 networks. The test reports FP32, FP16, and INT8 levels of precision.

“This AIXPRT preview build is the next step towards our goal of making it easier for folks to evaluate how well systems handle machine learning tasks,” said Bill Catchings, co-founder of Principled Technologies, which administers the BenchmarkXPRT Development Community. “We invite all industry experts and interested parties to try out the AIXPRT Community Preview and send us their feedback.”

The AIXPRT Community Preview is available to anyone with a GitHub© account who is interested in participating. To request access, please contact the BenchmarkXPRT Development Community by sending a message to BenchmarkXPRTsupport@PrincipledTechnologies.com.

AIXPRT is part of the BenchmarkXPRT suite of performance evaluation tools, which includes WebXPRT, MobileXPRT, TouchXPRT, CrXPRT, HDXPRT, and BatteryXPRT. The XPRTs help users get the facts before they buy, use, or evaluate tech products such as computers, tablets, and phones.

To learn more about the AIXPRT, go to www.AIXPRT.com. To learn more about the BenchmarkXPRT Development Community, go to www.BenchmarkXPRT.com.

About Principled Technologies, Inc.
Principled Technologies, Inc. is a leading provider of technology marketing, as well as learning and development services. It administers the BenchmarkXPRT Development Community.

Principled Technologies, Inc. is located in Durham, North Carolina, USA. For more information, please visit www.PrincipledTechnologies.com.

Company Contact
Justin Greene
BenchmarkXPRT Development Community
Principled Technologies, Inc.
1007 Slater Road, Ste. 300
Durham, NC 27704

BenchmarkXPRTsupport@PrincipledTechnologies.com

Principled Technologies and the BenchmarkXPRT Development Community release HDXPRT 4, a benchmark designed to show how well Windows devices handle real-world media tasks

Durham, NC, February 25 — Principled Technologies and the BenchmarkXPRT Development Community have released HDXPRT 4, a free benchmark that gives objective information about how well Windows 10 devices handle common media-creation tasks. HDXPRT 4 uses real commercial applications, like Photoshop and MediaEspresso, to perform tasks based on three everyday scenarios: photo editing, video conversion, and music editing. After the test is finished, the tool provides an overall measure by generating a single performance score. Anyone can go to HDXPRT.com to compare existing performance results on a variety of devices, or to download the app for themselves.

“When we started working on HDXPRT 4, we knew we wanted to create a benchmark that accurately reflects the kind of work average consumers do when creating content on their PCs,” said Bill Catchings, co-founder of Principled Technologies, which administers the BenchmarkXPRT Development Community. “HDXPRT delivers clear results that make sense to the wide audience of buyers shopping for new Windows systems.”

HDXPRT is part of the BenchmarkXPRT suite of performance evaluation tools, which includes WebXPRT, MobileXPRT, TouchXPRT, CrXPRT, and BatteryXPRT. The XPRTs help users get the facts before they buy, use, or evaluate tech products such as computers, tablets, and phones.

To learn more about the BenchmarkXPRT Development Community, go to www.BenchmarkXPRT.com.

About Principled Technologies, Inc.
Principled Technologies, Inc. is a leading provider of technology marketing, as well as learning and development services. It administers the BenchmarkXPRT Development Community.

Principled Technologies, Inc. is located in Durham, North Carolina, USA. For more information, please visit www.PrincipledTechnologies.com.

Company Contact
Justin Greene
BenchmarkXPRT Development Community
Principled Technologies, Inc.
1007 Slater Road, Ste. 300
Durham, NC 27704

BenchmarkXPRTsupport@PrincipledTechnologies.com

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