This directory contains JSON files describing metadata of AFDO profiles used to compile packages (Chrome and kernel) in Chrome OS.
kernel_afdo.json contains the name of the latest AFDO profiles for each kernel revision.
chrome_afdo.json contains the name of the latest AFDO profiles used in latest Chrome revision, including both benchmark and CWP profiles.
When a new profile (kernel or Chrome) is successfully uploaded to the production GS bucket, a bot submits to modify the corresponding JSON file to reflect the updates.
There will be scheduler jobs listening to the changes made to these JSON files. When changes detected, buildbot will roll these changes into corresponding Chrome OS packages.