Date: Tue, 13 Jan 2009 16:44:18 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/tools/sched schedgraph.py Message-ID: <200901131644.n0DGiVBX046121@repoman.freebsd.org>
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jhb 2009-01-13 16:44:18 UTC
FreeBSD src repository
Modified files:
tools/sched schedgraph.py
Log:
SVN rev 187156 on 2009-01-13 16:44:18Z by jhb
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.
Revision Changes Path
1.19 +224 -2 src/tools/sched/schedgraph.py
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