linux-kernel - Re: [PATCH v1 1/2] perf test: Add an 'import perf' test shell script

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Message-ID: <CAP-5=fV-3d1EzYfZq6s9M2NrLFFVOrWOTx_k5tByScA4Sfqq-g@mail.gmail.com>
Date: Tue, 30 Sep 2025 13:02:55 -0700
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>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	James Clark <james.clark@...aro.org>, Collin Funk <collin.funk1@...il.com>, 
	Ravi Bangoria <ravi.bangoria@....com>, linux-kernel@...r.kernel.org, 
	linux-perf-users@...r.kernel.org
Subject: Re: [PATCH v1 1/2] perf test: Add an 'import perf' test shell script

On Wed, Sep 3, 2025 at 11:42 AM Ian Rogers <irogers@...gle.com> wrote:
>
> The 'import perf' test needs to set up a path to the python module as
> well as to know the python command to invoke. These are hard coded at
> build time to be build a directory and the python used in the build,
> which is less than desirable. Avoid the hard coded values by reusing
> the existing shell script python setup and determine a potential built
> python module via the path of the perf executable.
>
> Signed-off-by: Ian Rogers <irogers@...gle.com>

Ping.

Thanks,
Ian

> ---
>  tools/perf/tests/shell/python-use.sh | 36 ++++++++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
>  create mode 100755 tools/perf/tests/shell/python-use.sh
>
> diff --git a/tools/perf/tests/shell/python-use.sh b/tools/perf/tests/shell/python-use.sh
> new file mode 100755
> index 000000000000..fd2ee5390060
> --- /dev/null
> +++ b/tools/perf/tests/shell/python-use.sh
> @@ -0,0 +1,36 @@
> +#!/bin/bash
> +# 'import perf' in python
> +# SPDX-License-Identifier: GPL-2.0
> +# Just test if we can load the python binding.
> +set -e
> +
> +shelldir=$(dirname "$0")
> +# shellcheck source=lib/setup_python.sh
> +. "${shelldir}"/lib/setup_python.sh
> +
> +MODULE_DIR=$(dirname "$(which perf)")/python
> +
> +if [ -d "$MODULE_DIR" ]
> +then
> +    CMD=$(cat <<EOF
> +import sys
> +sys.path.insert(0, '$MODULE_DIR')
> +import perf
> +print('success!')
> +EOF
> +    )
> +else
> +    CMD=$(cat <<EOF
> +import perf
> +print('success!')
> +EOF
> +    )
> +fi
> +
> +echo -e "Testing 'import perf' with:\n$CMD"
> +
> +if ! echo "$CMD" | $PYTHON | grep -q "success!"
> +then
> +  exit 1
> +fi
> +exit 0
> --
> 2.51.0.338.gd7d06c2dae-goog
>