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Category: Collaborative benchmark development

A very good question

Eric Hale
By Eric Hale
on December 4, 2014

A couple of weeks ago, we released the second community preview of CrXPRT (CP2). One of the changes was to make CrXPRT handle its test results more like WebXPRT. It now automatically uploads some test data to the PT servers, so that we can use it to improve future versions of the benchmark. Like WebXPRT, no personally identifying information is collected, and the results are never made public without your permission.

This week we got a question about the new results collection in CP2. The member wanted to know if the uploading of the results affected the battery life score at all. It does not. The results collection happens after the test. If you’re doing a battery rundown test, the results aren’t uploaded until the device boots the next time. I’m sorry we didn’t make that clearer in the documentation.

When we release a community preview, we commit that the results from that preview will be comparable to any subsequent previews and to the general release. In the case of CP2, we compared the results from CP2 to those from CP1 to make sure that the results stayed comparable. We take this commitment very seriously. When you test with a community preview, you can be sure that the results will still be good when the general release comes out.

In other news, we released a patch for BatteryXPRT yesterday. As we explained in the last blog post, this new version of BatteryXPRT is much more stable on devices running Android 5.

Have any other good questions? Send them our way.

Eric

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Posted in Android, BatteryXPRT 2014 for Android, Chrome OS, Collaborative benchmark development, Community Preview, CrXPRT, WebXPRT |

An update for BatteryXPRT 2014 for Android

Eric Hale
By Eric Hale
on December 1, 2014

For those of you in the US, I hope you had a happy Thanksgiving.

A couple of weeks ago, we updated MobileXPRT so that it would run correctly on Android 5 (Android L) devices. Later this week, we will be updating BatteryXPRT as well. The current BatteryXPRT build doesn’t work with Android 5 due to failures of the Create Slideshow workload. This is the same workload failure we fixed with an updated MobileXPRT build.

The new build greatly improves things. We successfully tested the new build on an array of Android 5 and 4.4 devices with no failures. However, we have seen the new build of BatteryXPRT return intermittent errors during the Create Photo Collage and Apply Photo Effects workloads when testing on the Nexus 9.

Because the error on the Nexus 9 is intermittent, it’s possible to get results from some runs. These results are still valid.

We haven’t seen this failure on any device other than the Nexus 9, but cannot guarantee that there aren’t others. If you see any other failures, or have any questions, please contact us.

We’re currently working on a solution for this problem. We will, as always, keep you informed.

Eric

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Posted in Android, Battery life, BatteryXPRT 2014 for Android, Collaborative benchmark development, MobileXPRT |

A new model

Eric Hale
By Eric Hale
on November 20, 2014

Today we released a new community preview for CrXPRT (CP2). It contains several enhancements and UI changes. It also fixes the problem we discussed in last week’s blog, so CP2 will now correctly execute a rundown test on a system using Chinese language settings.

The most exciting enhancement is that CP2 will let you test battery life without having to put the device into developer mode.  The new Battery Status API, which became available with Chrome 38, makes this possible.

Another enhancement is that results submission is now integrated into the benchmark UI. CrXPRT follows the WebXPRT model, with you having opt-in control over whether the results are published on the PT Web site. However, CrXPRT goes further by allowing you the option to upload more extensive disclosure information, and the option to download results as a text file.

These and other enhancements are covered in more detail in the CrXPRT forum and the user manual. Because this is a community preview, you have to be a community member to download it. However, joining is very easy.

We hope you like the new features in CrXPRT. Let us know what you think!

Eric

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Posted in Chrome OS, Collaborative benchmark development, Community Preview, CrXPRT |

News about MobileXPRT 2013 and WebXPRT 2015

Eric Hale
By Eric Hale
on November 14, 2014

Today, we’re releasing a new build (v92) of MobileXPRT 2013 at MobileXPRT.com and the Google Play store. This build addresses issues encountered when testing MobileXPRT on Android 5 devices. The tests have not changed, so new scores are comparable with previous MobileXPRT 2013 scores.

Click here to download the new MobileXPRT build directly from our site.

Alternatively, you can download the MobileXPRT 2013 APKs directly. The APKs are small (17.9 MB total) and allow you to download the test content during installation. For users who have trouble accessing the Google Play store, these APKs may make it easier to download the benchmark.

Download the MobileXPRT APK here.
Download the MobileXPRT UX Tests APK here.

Also, today we’re publishing the WebXPRT 2015 Design Overview document for community members. You can find the document on the WebXPRT tab in the Members’ Area. We look forward to your feedback!

If you have any questions or concerns about these or any other XPRT-related topics, feel free to contact us at BenchmarkXPRTsupport@principledtechnologies.com.

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Posted in Android, Collaborative benchmark development, MobileXPRT, WebXPRT, WebXPRT 2015 |

Upcoming experiments

Eric Hale
By Eric Hale
on November 6, 2014

Next week, we’ll be releasing the design overview for WebXPRT 2015. WebXPRT 2013 has been an enormous success, having been run tens of thousands of times.

One of the big improvements we are considering for WebXPRT 2015 is adding experimental tests. A big reason for WebXPRT’s success is that it runs on almost every Web-enabled device. We consider it essential to preserve this broad compatibility. However, there are interesting Web technologies that simply are not available on all devices.

Our proposal is to add experimental tests to WebXPRT. These tests would be optional and would not be included in the Overall score, so WebXPRT would still be able to compare the performance of widely different devices. We are looking at technologies such as Web Workers, WebGL, and pre-compiled JavaScript (asm.js).

In addition to adding experimental tests, we are looking at ways to improve the UI, add automation, add new tests, update old tests, and more!

If you are a community member, you’ll get a notice when the overview is available. We will definitely want to know what you think! If you are not a member, it’s a great time to join.

If you have any thoughts on these ideas, or have ideas of your own, please let us know!

Eric

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Posted in BenchmarkXPRT development community, Collaborative benchmark development, Performance benchmarking, WebXPRT, WebXPRT 2015, What makes a good benchmark? |

Time to get creative

Justin Greene
By Justin Greene
on September 4, 2014

The CrXPRT Community Preview is right around the corner, and there’s no sign of things slowing down. We’re exploring new opportunities on a number of fronts, and we’d love to hear what you think! We’re considering possible changes to WebXPRT and MobileXPRT, and since the mobile device market is changing all the time, we’re looking for the next great benchmark opportunity. In both cases, the development community is a rich source of ideas, so we’d like to tap into it one more time.

A while back, we added a new Web form in the members’ area for submitting benchmark ideas. Some of the ideas we have so far include:

  • A benchmark to evaluate camera features and photo quality on phones and tablets
  • A benchmark for measuring the performance of cloud services
  • A benchmark for measuring the performance and battery life of iOS-based devices

So, what would you like to see? Any of these, or do you have ideas we haven’t mentioned? Also, we’d love to hear your feedback on ways we can improve, both with the XPRTs themselves and with community life. Either way, send a message to BenchmarkXPRTSupport@principledtechnologies.com and let us know what you think!

Justin

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Posted in BenchmarkXPRT development community, Collaborative benchmark development, Community Preview, CrXPRT, MobileXPRT, WebXPRT, What makes a good benchmark? |

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