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by jeffbee 1082 days ago
The is HN so you are allowed to hold forth out of pure ignorance, if you want to. Android-wide and ChromeOS-wide profiling produce binaries including the Linux kernel that are peak-optimized for actual conditions in the field and real use cases. They ship the only profile-optimized Linux kernels you can get from any distribution. It is a demonstrably better product through telemetry.
2 comments

Got a link to any information on this, especially the collection of the profile information from user's devices? The only reference I can see to PGO on android is the support they have for a more traditional flow (create special instrumented binary, run a 'representative' workload or two, get profile data for PGO). It would be especially interesting if there's any info on how much of a performance improvement this yielded.
> It is a demonstrably better product through telemetry.

Demonstrable, perhaps; but to actually demonstrate it, they'd have to share their telemetry results.

Also, demonstrably better than what? Demonstrably better than a Google-free kernel with no telemetry? How can you demonstrate that?