On Thu, Feb 06, 2025 at 05:02:24PM -0800, Darrick J. Wong wrote: > I'm kinda surprised you didn't export this via sysfs, but then > remembered that Greg has strict rules against tabular data and whatnot. > > > This gives good insight into data fragmentation and data placement > > success rate. > > I hope it's worth exporting a bunch of stringly-structured data. ;) > > Past me would've asked if we could just export some json and let > userspace pick that up, but today me learned about the horrors of json > and how it represents integers, stumbling over trailing commas, etc. Yeah, this is really mostly used for human debugging at the moment. > Is any of this getting wired up into a zone-top tool? Heh, for that we'd actually need to commit to a stable format. But it does sound interesting. Combine with information from fsmap for the persistent space usage on disk.
