linux-kernel - [GIT PULL] tracing/tools: Updates for 6.10

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Date: Fri, 17 May 2024 10:41:26 +0200
From: Daniel Bristot de Oliveira <bristot@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Daniel Bristot de Oliveira <bristot@...nel.org>,
	John Kacur <jkacur@...hat.com>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org
Subject: [GIT PULL] tracing/tools: Updates for 6.10

Steven,

RTLA:
	Specific for timerlat:

	- Improves the output of timerlat top by adding a missing \n,
	  and by avoiding printing color-formatting characters where
	  they are translated to regular characters.

	- Improves timerlat auto-analysis output by replacing '\t'
	  with spaces to avoid copy-and-paste issues when reporting
	  problems.

	- For timerlat, make the user-space (-u) option the default,
	  as it is the most complete test. Add a -k option to use
	  the in-kernel workload.

	- On timerlat top and hist, add a summary with the overall
	  results. For instance, the minimum value for all CPUs,
	  the overall average and the maximum value from all CPUs.

	- timerlat hist was printing initial values (i.e., 0 as max,
	  and ~0 as min) if the trace stopped before the first Ret-User
	  event. This problem was fixed by printing the "       - "
	  no value string to the output if that was the case.

	For all RTLA tools:

	- Add a --warm-up <seconds> option, allowing the workload to
	  run for <seconds> before starting to collect results.

	- Add a --trace-buffer-size option, allowing the user to set
	  the tracing buffer size for -t option. This option is mainly
	  useful for reducing the trace file. Now rtla depends on
	  libtracefs >= 1.6.

	- Fix the -t [trace_file] parsing, now it does not require
	  the '=' before the option parameter, and better handles the
	  multiple ways a user can pass the trace_file.txt


Please pull the latest trace-tools-v6.10 tree, which can be found at:

  git://git.kernel.org/pub/scm/linux/kernel/git/bristot/linux.git
trace-tools-v6.10

Tag SHA1: dbd633e7f81bac0114f609ff2eade9f4e66a28e2
Head SHA1: 59c22f70b2951d81de410d477ae536ba951b4f37

Daniel Bristot de Oliveira (8):
      rtla/timerlat: Simplify "no value" printing on top
      rtla/auto-analysis: Replace \t with spaces
      rtla/timerlat: Use pretty formatting only on interactive tty
      rtla/timerlat: Add a summary for top mode
      rtla/timerlat: Add a summary for hist mode
      rtla: Add the --warm-up option
      rtla/timerlat: Make user-space threads the default
      rtla: Add --trace-buffer-size option

John Kacur (3):
      rtla/timerlat: Fix histogram report when a cpu count is 0
      rtla: Fix -t\--trace[=file]
      rtla: Documentation: Fix -t, --trace

----
 Documentation/tools/rtla/common_options.rst        |  11 +-
 .../tools/rtla/common_osnoise_options.rst          |   4 +
 .../tools/rtla/common_timerlat_options.rst         |  10 +-
 tools/tracing/rtla/Makefile.config                 |   2 +-
 tools/tracing/rtla/src/osnoise_hist.c              |  55 +++-
 tools/tracing/rtla/src/osnoise_top.c               |  55 +++-
 tools/tracing/rtla/src/timerlat_aa.c               | 109 ++++----
 tools/tracing/rtla/src/timerlat_hist.c             | 294 ++++++++++++++++++---
 tools/tracing/rtla/src/timerlat_top.c              | 250 +++++++++++++++---
 tools/tracing/rtla/src/trace.c                     |  15 ++
 tools/tracing/rtla/src/trace.h                     |   1 +
 11 files changed, 653 insertions(+), 153 deletions(-)