CVSROOT: /cvs
Module name: src
Changes by: bl...@cvs.openbsd.org 2025/07/21 14:36:41
Modified files:
sys/dev/dt : dt_prov_static.c
sys/kern : kern_rwlock.c subr_pool.c uipc_socket.c
sys/net : if.c
sys/sys : rwlock.h
Log message:
Add dt(4) trace points to rwlock(9).
To analyze lock contention, add tracepoints ro read/write lock
implementation. This is done similar to reference count tracing.
The trace points have arguments that allow filtering by read/write
and immediately/spinning/sleeping/failed lock. For now, net lock
and socket lock are enhanced. To activate the feature for additional
locks, use the initializer with _trace suffix.
OK mvs@
