From 5382c05021026fe623def829d121f5f6af4909fb Mon Sep 17 00:00:00 2001 From: Andrew Svetlov Date: Sun, 17 Dec 2017 16:41:30 +0200 Subject: bpo-32351: Use fastpath in asyncio.sleep if delay<0 (#4908) * Use fastpath in asyncio.sleep if delay<0 * Add NEWS entry --- Lib/asyncio/tasks.py | 2 +- Misc/NEWS.d/next/Library/2017-12-17-14-23-23.bpo-32351.95fh2K.rst | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) create mode 100644 Misc/NEWS.d/next/Library/2017-12-17-14-23-23.bpo-32351.95fh2K.rst diff --git a/Lib/asyncio/tasks.py b/Lib/asyncio/tasks.py index cdb483a..275141c 100644 --- a/Lib/asyncio/tasks.py +++ b/Lib/asyncio/tasks.py @@ -503,7 +503,7 @@ def __sleep0(): async def sleep(delay, result=None, *, loop=None): """Coroutine that completes after a given time (in seconds).""" - if delay == 0: + if delay <= 0: await __sleep0() return result diff --git a/Misc/NEWS.d/next/Library/2017-12-17-14-23-23.bpo-32351.95fh2K.rst b/Misc/NEWS.d/next/Library/2017-12-17-14-23-23.bpo-32351.95fh2K.rst new file mode 100644 index 0000000..56f52d2 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2017-12-17-14-23-23.bpo-32351.95fh2K.rst @@ -0,0 +1 @@ +Use fastpath in asyncio.sleep if delay<0 (2x boost) -- cgit v0.12