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mirror of https://git.FreeBSD.org/src.git synced 2024-12-24 11:29:10 +00:00
freebsd/tools/sched
John Baldwin 0199a61d9f Add support for two new event source types:
- Callwheels traced via KTR_CALLOUT.  Each CPU is assigned a callwheel
  source.  The events on this source are the execution of individual callout
  routines.  Each routine shows up as a green rectangle while it is executed
  and the event details include the function pointer and argument.
- Locks traced via KTR_LOCK.  Currently, each lock name is assigned an event
  source (since the existing KTR_LOCK traces only include lock names and
  not pointers).  This does mean that if multiple locks of the same name are
  manipulated, the source line for that name may be confusing.  However, for
  many cases this can be useful.  Locks are blue when they are held and
  purple when contested.  The contention support is a bit weak due to
  limitations in the rw_rlock() and mtx_lock_spin() logging messages
  currently.  I also have not added support for contention on lockmgr,
  sx, or rmlocks yet.  What is there now can be profitably used to examine
  activity on Giant however.
- Expand the width of the event source names column a bit to allow for some
  of the longer names of these new source types.
2009-01-13 16:44:18 +00:00
..
schedgraph.py Add support for two new event source types: 2009-01-13 16:44:18 +00:00