From b8b2990fb3218cffedfe7bc92e9e7ae2275b3c98 Mon Sep 17 00:00:00 2001
From: Mark Shannon <mark@hotpy.org>
Date: Thu, 28 Jul 2022 10:17:22 +0100
Subject: GH-90081: Run python tracers at full speed (GH-95328)

---
 Include/internal/pycore_pystate.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

(limited to 'Include/internal/pycore_pystate.h')

diff --git a/Include/internal/pycore_pystate.h b/Include/internal/pycore_pystate.h
index b4a39b62b7..51d119c23e 100644
--- a/Include/internal/pycore_pystate.h
+++ b/Include/internal/pycore_pystate.h
@@ -131,8 +131,9 @@ PyAPI_FUNC(void) _PyThreadState_DeleteExcept(
 static inline void
 _PyThreadState_UpdateTracingState(PyThreadState *tstate)
 {
-    int use_tracing = (tstate->c_tracefunc != NULL
-                       || tstate->c_profilefunc != NULL);
+    bool use_tracing =
+        (tstate->tracing == 0) &&
+        (tstate->c_tracefunc != NULL || tstate->c_profilefunc != NULL);
     tstate->cframe->use_tracing = (use_tracing ? 255 : 0);
 }
 
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