Messages in this thread | | | From | Frederic Weisbecker <> | Subject | [PATCH 00/19] tracing/workqueue: events support/enhancements, worklets tracing, fixes | Date | Thu, 30 Apr 2009 02:27:01 +0200 |
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Hi,
This patchset brings various features for the workqueue tracer.
The support of events tracing (tracepoint expanding): - workqueue_creation - workqueue_flush - workqueue_destruction
Also for the worklets: - worklet_enqueue - worklet_enqueue_delayed - worklet_execute - worklet_complete - worklet_cancel
Now, most of the lifecycle of worklets and workqueues is available.
The histogram tracing now also supports the worklets. You can measure the max and average execution time of a worklet.
A good bunch of Oleg's comments have been addressed, at least the critical ones (races which can cause freed pointer dereferences, memory leak, etc...). The rest is more about the design itself, such as using the workqueue as the identifier instead of the thread and other things that are in discussion.
Thanks!
Frederic.
The following changes since commit a0e39ed378fb6ba916522764cd508fa7d42ad495: Heiko Carstens (1): tracing: fix build failure on s390
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing.git tracing/workqueue
Frederic Weisbecker (6): tracing/workqueue: turn cpu_workqueue_stats::inserted into unsigned int tracing/workqueue: add execution time average column tracing/workqueue: add open/release file handlers tracing/workqueue: defer workqueue stat release if needed tracing/workqueue: use the original cpu affinity on probe_workqueue_destruction tracing/workqueue: provide documentation for the workqueue tracer
KOSAKI Motohiro (2): workqueue_tracepoint: introduce workqueue_handler_exit tracepoint and rename workqueue_execution to workqueue_handler_entry tracing/workqueue: add max execution time mesurement for per worklet
Zhaolei (11): ftrace, workqueuetrace: make workqueue tracepoints use TRACE_EVENT macro trace_workqueue: use list_for_each_entry() instead of list_for_each_entry_safe() trace_workqueue: remove cpu_workqueue_stats->first_entry trace_workqueue: remove blank line between each cpu trace_workqueue: add worklet information workqueue_tracepoint: add workqueue_flush and worklet_cancel tracepoint workqueue_tracepoint: change tracepoint name to fit worklet and workqueue lifecycle workqueue_trace: separate worklet_insertion into worklet_enqueue and worklet_enqueue_delayed tracing/workqueue: turn workfunc_stats::inserted into unsigned int tracing/workqueue: avoid accessing task_struct's member variable in stat file read tracing/workqueue: use list_for_each_entry instead of list_for_each_entry_safe in probe_workqueue_destruction()
Documentation/trace/workqueue.txt | 114 ++++++++++ include/trace/events/workqueue.h | 200 +++++++++++++++++ include/trace/workqueue.h | 25 -- kernel/trace/trace_stat.c | 8 + kernel/trace/trace_stat.h | 3 + kernel/trace/trace_workqueue.c | 444 +++++++++++++++++++++++++++++-------- kernel/workqueue.c | 45 +++-- 7 files changed, 697 insertions(+), 142 deletions(-) create mode 100644 Documentation/trace/workqueue.txt create mode 100644 include/trace/events/workqueue.h delete mode 100644 include/trace/workqueue.h
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