From 516c70d4dd39e02bb365729a4b8aa93f9e6a3e82 Mon Sep 17 00:00:00 2001 From: Ken Jin Date: Tue, 11 Feb 2025 03:07:24 +0800 Subject: [PATCH] Clarify baseline for new interpreter (GH-129972) --- Doc/whatsnew/3.14.rst | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Doc/whatsnew/3.14.rst b/Doc/whatsnew/3.14.rst index f8df4c52a36..28e3e2dbbe2 100644 --- a/Doc/whatsnew/3.14.rst +++ b/Doc/whatsnew/3.14.rst @@ -218,7 +218,8 @@ A new type of interpreter based on tail calls has been added to CPython. For certain newer compilers, this interpreter provides significantly better performance. Preliminary numbers on our machines suggest anywhere from -3% to 30% faster Python code, and a geometric mean of 9-15% -faster on ``pyperformance`` depending on platform and architecture. +faster on ``pyperformance`` depending on platform and architecture. The +baseline is Python 3.14 built with Clang 19 without this new interpreter. This interpreter currently only works with Clang 19 and newer on x86-64 and AArch64 architectures. However, we expect