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[00/12] trace-cmd: Add trace-cmd analyze command

Message ID 20220324025726.1727204-1-rostedt@goodmis.org
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Series trace-cmd: Add trace-cmd analyze command | expand

Message

Steven Rostedt March 24, 2022, 2:57 a.m. UTC 
From: "Steven Rostedt (Google)" <rostedt@goodmis.org>

Add a new command called "analyze" that reads a trace.dat file and will
report useful information from it. Such as:

Time the CPUs were idle.

What tasks ran the most on a CPU.

For each task, how long were the wake ups, how long was it blocked,
preempted, or just sleeping.

And many more to come.

See the man page at the last patch for more details.

Steven Rostedt (Google) (12):
  trace-cmd: Add trace-cmd analyze
  trace-cmd analyze: Show what tasks are running the most
  trace-cmd analyze: Show how much tasks run on each CPU
  trace-cmd analyze: Use sched_switch to find comm mappings
  trace-cmd analyze: Use sched_switch event to update times
  trace-cmd analyze: Add tracing of tasks and their states
  trace-cmd analyze: Add "idleness"
  trace-cmd analyze: Track migration
  trace-cmd analyze: Add wake up latency timings
  trace-cmd analyze: Add counting of page faults
  trace-cmd analyze: Account for dropped events
  trace-cmd analyze: Add documentation

 .../trace-cmd/trace-cmd-analyze.1.txt         |  290 +++++
 tracecmd/Makefile                             |    1 +
 tracecmd/include/trace-local.h                |    2 +
 tracecmd/trace-analyze.c                      | 1046 +++++++++++++++++
 tracecmd/trace-cmd.c                          |    1 +
 tracecmd/trace-usage.c                        |    7 +
 6 files changed, 1347 insertions(+)
 create mode 100644 Documentation/trace-cmd/trace-cmd-analyze.1.txt
 create mode 100644 tracecmd/trace-analyze.c