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Author SHA1 Message Date
Kent Overstreet
b76ac9f405 Gate nightly diagnostics behind feature 2026-06-15 10:35:04 -05:00
Kent Overstreet
f56fc3a7c7 locks: add process-wide lock hold time tracking 
TrackedMutex and TrackedRwLock wrappers that record hold durations
by source location using #[track_caller]. Stats written to
~/.consciousness/lock-stats.json every second, sorted by max hold time.

Re-exported as crate::Mutex so all locks are instrumented. To disable,
swap the re-export back to tokio::sync::Mutex.

Co-Authored-By: Proof of Concept <poc@bcachefs.org>
 2026-04-12 20:27:42 -04:00