Last week, we
published the Exploring WebXPRT 4 white paper.
The paper describes the design and structure of WebXPRT 4, including detailed
information about the benchmark’s harness, HTML5 and WebAssembly capability
checks, and the structure of the performance test workloads. This week, to
help WebXPRT 4 testers understand how the benchmark calculates results, we’ve published
the WebXPRT 4 results calculation and confidence interval white
paper explains the WebXPRT 4 confidence interval and how it differs from typical
benchmark variability, and the formulas the benchmark uses to calculate the
individual workload scenario scores and overall score. The paper also provides
an overview of the statistical techniques WebXPRT uses to translate raw timings
the white paper’s discussion of the results calculation process, we’ve also
published a results calculation spreadsheet that shows the
raw data from a sample test run and reproduces the calculations WebXPRT uses to
produce workload scores and the overall score.
This week, we published the Exploring WebXPRT 4 white paper. It describes the design and structure of WebXPRT 4, including detailed information about the benchmark’s harness, HTML5 and WebAssembly (WASM) capability checks, and changes we’ve made to the structure of the performance test workloads. We explain the benchmark’s scoring methodology, how to automate tests, and how to submit results for publication. The white paper also includes information about the third-party functions and libraries that WebXPRT 4 uses during the HTML5 and WASM capability checks and performance workloads.
The Exploring WebXPRT 4 white paper promotes
the high level of transparency and disclosure that is a core value of the
BenchmarkXPRT Development Community. We’ve always believed that transparency
builds trust, and trust is essential for a healthy benchmarking community.
That’s why we involve community members in the benchmark development process
and disclose how we build our benchmarks and how they work.
Tom’s Guide published an interesting article
about how they used ChromeOS Flex to turn a
ten-year-old Apple MacBook Pro into a functioning Chromebook by replacing the
laptop’s macOS operating system with ChromeOS. ChromeOS Flex is a free Google
tool that allows users to create a bootable USB drive that they can then use to
install ChromeOS on a wide variety
of hardware platforms that traditionally run other operating systems such as
macOS or Windows. Because ChromeOS is a cloud-first, relatively low-overhead
operating system, the ChromeOS Flex option could breathe new life into an old
laptop that you have lying around.
Never having encountered a MacBook Pro with ChromeOS, we were interested to learn about Tom’s experience running XPRT benchmarks in this new environment.WebXPRT 4, WebXPRT 3, and the CrXPRT 2 performance test apparently ran without any issues, but we have not yet seen a CrXPRT 2 battery life result from a ChromeOS Flex environment. We plan to experiment with this soon.
were happy to publish the results on our site, and will consider any ChromeOS
Flex results we receive for publication. If you submit results from ChromeOS
Flex testing, we ask that you use the “Additional information” field in the
results submission form to clarify that you ran the tests in a ChromeOS Flex
environment. This will prevent any possible confusion when we see a submission
that lists a traditional macOS or Windows hardware platform along with a
ChromeOS version number.
Do you have experience running CrXPRT or WebXPRT with ChromeOS Flex? We’d love to hear about it!
The new school year is
upon us, and learners of all ages are looking for tech devices that have the
capabilities they will need in the coming year. The tech marketplace can be
confusing, and competing claims can be hard to navigate. The XPRTs are here to
help! Whether you’re shopping for a new phone, tablet, Chromebook, laptop, or
desktop, the XPRTs can provide reliable, industry-trusted performance scores
that can cut through all the noise.
A good place to start looking
for scores is the WebXPRT 4 results viewer. The viewer displays WebXPRT 4 scores from
over 175 devices—including many hot new releases—and we’re adding new scores
all the time. To learn more about the viewer’s capabilities and how you can use
it to compare devices, check out this blog post.
Another resource we
offer is the XPRT results browser. The browser is the most efficient way to access the XPRT
results database, which currently holds more than 3,000 test results from over 120
sources, including major tech review publications around the world, OEMs, and
independent testers. It offers a wealth of current and historical performance
data across all of the XPRT benchmarks and hundreds of devices. You can read
more about how to use the results browser here.
Also, if you’re considering a popular device, chances are good that a recent tech review includes an XPRT score for that device. Two quick ways to find these reviews: (1) go to your favorite tech review site and search for “XPRT” and (2) go to a search engine and enter the device name and XPRT name (e.g., “Apple MacBook Air” and “WebXPRT”). Here are a few recent tech reviews that use one of the XPRTs to evaluate a popular device:
The XPRTs can help consumers make better-informed and more confident tech purchases. As this school year begins, we hope you’ll find the data you need on our site or in an XPRT-related tech review. If you have any questions about the XPRTs, XPRT scores, or the results database please feel free to ask!
When we first released WebXPRT 2013, some users in mainland China reported slow download times when running the benchmark. In response, we set up a mirror host site in Singapore to facilitate WebXPRT testing in China and other East Asian countries. We continued this practice with subsequent WebXPRT versions, and currently offer Singapore-based instances of WebXPRT 4, WebXPRT 3, and WebXPRT 2015.
Until this past month,
we used an Amazon Web Services (AWS) EC2-Classic environment to host the
Singapore mirror site. Because Amazon retired the EC2-Classic environment, we
had to migrate each of the WebXPRT Singapore instances to a new AWS Virtual
Private Cloud (VPC) environment.
We do not expect the new environment to affect WebXPRT Singapore testing or results, and have not yet observed any significant differences in WebXPRT performance scores while testing on the new site. If you have a different experience when testing on the new site or encounter interruptions when trying to access the test, please let us know!
We’re excited to see that users have successfully completed over 1,000,000 WebXPRT runs! If you’ve run WebXPRT in any of the 924 cities and 81 countries from which we’ve received complete test data—including newcomers Bahrain, Bangladesh, Mauritius, The Philippines, and South Korea —we’re grateful for your help. We could not have reached this milestone without you!
As the chart below illustrates, WebXPRT use has grown steadily since the debut of WebXPRT 2013. On average, we now record more WebXPRT runs in one month than we recorded in the entirety of our first year. With over 104,000 runs so far in 2022, that growth is continuing.
For us, this moment represents more than a numerical milestone. Developing and maintaining a benchmark is never easy, and a cross-platform benchmark that will run on a wide variety of devices poses an additional set of challenges. For such a benchmark to succeed, developers need not only technical competency, but the trust and support of the benchmarking community. WebXPRT is now in its ninth year, and its consistent year-over-year growth tells us that the benchmark continues to hold value for manufacturers, OEM labs, the tech press, and end users like you. We see it as a sign of trust that folks repeatedly return to the benchmark for reliable performance metrics. We’re grateful for that trust, and for everyone that’s contributed to the WebXPRT development process throughout the years.
We’ll have more to share related to this exciting milestone in the weeks to come, so stay tuned to the blog. If you have any questions or comments about WebXPRT, we’d love to hear from you!