Who maintains this site?
This site is maintained by Mozilla's JavaScript team.
How does it work?
AWFY is automated. Throughout the day, we checkout the latest source code to each available JavaScript engine, and compile it. Then we run it through some benchmark suites, and tally up the scores into a database. This data gets exported as JSON which can then be easily plotted.
Why aren't Opera or IE available?
AWFY currently runs standalone, command-line JavaScript shells - not the web browsers that embed them. Opera doesn't provide a standalone shell, and IE doesn't work on Mac or Linux (which is where we benchmark right now).
What are the graphs?
The top left-hand graph is Mozilla's Kraken benchmark. The top right-hand graph is Apple's SunSpider benchmark. The bottom graph is Google's V8 benchmark suite.
What do the hover tips mean?
"Source" is where we got the engine from. "Tested" is when we downloaded the engine, compiled, and tested it. "Rev" is the unique point in the engine's revision history we tested. If the datapoint represents a range, there may be multiple revs. These numbers/strings are for developers to see which changes happened in between points in the graph.
What's ARM?
ARM is the CPU present in many embedded devices, like smartphones. We're interested in this for mobile Firefox and Firefox OS.
Is this open source?
Fo' sho', https://github.com/haytjes/arewefastyet
Can I still see the original AWFY, from the JaegerMonkey days?
Suggestions?