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Clean up mypy type errors and pylint errors/warnings in
tools/perf/tests/shell/lib/ (attr.py, perf_json_output_lint.py, and
perf_metric_validation.py):
- Fix E0606 (possibly-used-before-assignment) in perf_metric_validation.py
by importing sys at module level.
- Add type annotations for stack, second_results, collectlist,
get_bounds(), and main() in perf_metric_validation.py.
- Avoid assigning -1 to list[int] expected_items in
perf_json_output_lint.py, rename shadowing variables, and remove
redundant lambdas.
- Remove unnecessary semicolons, use lazy logging arguments, specify
exception types and file encodings, and initialize module-level logger
in attr.py.
Also update tools/perf/tests/shell/lib/setup_python.sh to:
- Avoid x-prefix string comparisons.
- Export PYTHON and resolve PYTHONPATH and PERF_EXEC_PATH from
BASH_SOURCE[0], ../../../python (for nested test directories such as
coresight/), and the directory containing the perf binary so out-of-tree
builds and standalone perf python scripts work seamlessly.
Assisted-by: Antigravity:gemini-3.1-pro
Signed-off-by: Ian Rogers <irogers@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Add LiveSession class in tools/perf/python/perf_live.py to support
live event collection using perf.evlist and perf.parse_events,
avoiding the need to fork a separate perf record process.
Signed-off-by: Ian Rogers <irogers@google.com>
Assisted-by: Gemini:gemini-3.1-pro-preview
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alice Rogers <alice.mei.rogers@gmail.com>
Cc: Dapeng Mi <dapeng1.mi@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Richter <tmricht@linux.ibm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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There are 43 instances of posix shell tests and 35 instances of bash. To
give us a single consistent language for testing in, replace
all #!/bin/sh to #!/bin/bash. Common sources that are included in both
different shells will now work as expected. And we no longer have to fix
up bashisms that appear to work when someone's system has sh symlinked
to bash, but don't work on other systems that have both shells
installed.
Although we could have chosen sh, it's not backwards compatible so it
wouldn't be possible to bulk convert without re-writing the existing
bash tests.
Choosing bash also gives us some nicer features including 'local'
variable definitions and regexes in if statements that are already
widely used in the tests.
It's not expected that there are any users with only sh available due to
the large number of bash tests that exist.
Discussed in relation to running shellcheck here:
https://lore.kernel.org/linux-perf-users/e3751a74be34bbf3781c4644f518702a7270220b.1749785642.git.collin.funk1@gmail.com/
Signed-off-by: James Clark <james.clark@linaro.org>
Reviewed-by: Collin Funk <collin.funk1@gmail.com>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20250623-james-perf-bash-tests-v1-1-f572f54d4559@linaro.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
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Avoid replicated logic by having a common library to set the PYTHON
environment variable.
Reviewed-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20231129213428.2227448-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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