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-rw-r--r--Doc/howto/perf_profiling.rst3
-rw-r--r--Doc/using/cmdline.rst2
2 files changed, 5 insertions, 0 deletions
diff --git a/Doc/howto/perf_profiling.rst b/Doc/howto/perf_profiling.rst
index 2e1bb48..ed8de88 100644
--- a/Doc/howto/perf_profiling.rst
+++ b/Doc/howto/perf_profiling.rst
@@ -155,6 +155,9 @@ active since the start of the Python interpreter, you can use the `-Xperf` optio
$ python -Xperf my_script.py
+You can also set the :envvar:`PYTHONPERFSUPPORT` to a nonzero value to actiavate perf
+profiling mode globally.
+
There is also support for dynamically activating and deactivating the perf
profiling mode by using the APIs in the :mod:`sys` module:
diff --git a/Doc/using/cmdline.rst b/Doc/using/cmdline.rst
index 5ecc882..fa2b07e 100644
--- a/Doc/using/cmdline.rst
+++ b/Doc/using/cmdline.rst
@@ -582,6 +582,8 @@ Miscellaneous options
.. versionadded:: 3.11
The ``-X frozen_modules`` option.
+ .. versionadded:: 3.12
+ The ``-X perf`` option.
Options you shouldn't use