linux-kernel - [PATCH v4 0/8] Run tests in parallel

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Message-Id: <20240214045356.748330-1-irogers@google.com>
Date: Tue, 13 Feb 2024 20:53:48 -0800
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Nathan Chancellor <nathan@...nel.org>, Nick Desaulniers <ndesaulniers@...gle.com>, 
	Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>, 
	James Clark <james.clark@....com>, Athira Jajeev <atrajeev@...ux.vnet.ibm.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, Yang Jihong <yangjihong1@...wei.com>, 
	linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org, 
	llvm@...ts.linux.dev
Subject: [PATCH v4 0/8] Run tests in parallel

If command line option '-p' is provided, start/fork all tests in the
main thread and then gather them in order at the end. On a laptop test
time was reduced from 5 minutes 21 seconds to 1 minute 50 seconds. The
option isn't default as the test shows up perf and test flakes.

The '-v' option is modified so that 'perf test -v' will give verbose
output only from failing tests.

v4 - fix bug in width computation.
v3 - fix a crash if shell test directory isn't found, remove merged patch.
v2 - fix parallel test output/verbose issue
v1 - initial PoC

Ian Rogers (8):
  perf thread_map: Skip exited threads when scanning /proc
  perf list: Add scandirat compatibility function
  perf tests: Avoid fork in perf_has_symbol test
  tools subcmd: Add a no exec function call option
  perf test: Rename builtin-test-list and add missed header guard
  perf tests: Use scandirat for shell script finding
  perf tests: Run time generate shell test suites
  perf tests: Add option to run tests in parallel

 tools/lib/subcmd/run-command.c                |   2 +
 tools/lib/subcmd/run-command.h                |   2 +
 tools/perf/tests/Build                        |   2 +-
 tools/perf/tests/builtin-test-list.c          | 207 ----------
 tools/perf/tests/builtin-test-list.h          |  12 -
 tools/perf/tests/builtin-test.c               | 378 ++++++++++--------
 tools/perf/tests/shell/lib/perf_has_symbol.sh |   2 +-
 tools/perf/tests/tests-scripts.c              | 257 ++++++++++++
 tools/perf/tests/tests-scripts.h              |   9 +
 tools/perf/util/print-events.c                |  12 +-
 tools/perf/util/thread_map.c                  |   9 +-
 tools/perf/util/util.c                        |  19 +
 tools/perf/util/util.h                        |   8 +
 13 files changed, 509 insertions(+), 410 deletions(-)
 delete mode 100644 tools/perf/tests/builtin-test-list.c
 delete mode 100644 tools/perf/tests/builtin-test-list.h
 create mode 100644 tools/perf/tests/tests-scripts.c
 create mode 100644 tools/perf/tests/tests-scripts.h

-- 
2.43.0.687.g38aa6559b0-goog