Home
Reading
Searching
Subscribe
Sponsors
Statistics
Posting
Contact
Spam
Lists
Links
About
Hosting
Filtering
Features Download
Marketing
Archives
FAQ
Blog
 
Gmane
From: Frederic Weisbecker <fweisbec <at> gmail.com>
Subject: [PATCH 00/19] tracing/workqueue: events support/enhancements, worklets tracing, fixes
Newsgroups: gmane.linux.kernel
Date: Thursday 30th April 2009 00:27:01 UTC (over 7 years ago)
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
 
CD: 2ms