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[3.13] gh-120226: Fix test_sendfile_close_peer_in_the_middle_of_receiving on Linux >= 6.10 (GH-120227) (#123421)

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gh-120226: Fix test_sendfile_close_peer_in_the_middle_of_receiving on Linux >= 6.10 (GH-120227)

The worst case is that the kernel buffers 17 pages with a page size of 64k.
(cherry picked from commit a758424566)

Co-authored-by: Xi Ruoyao <xry111@xry111.site>
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Miss Islington (bot) 2024-09-02 13:14:03 +02:00 • committed by GitHub
parent 7e8883a3f0
commit 14a899f6f0
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1 changed files with 4 additions and 7 deletions
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11
Lib/test/test_asyncio/test_sendfile.py
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@ -93,13 +93,10 @@ async def wait_closed(self):
class SendfileBase:
# 256 KiB plus small unaligned to buffer chunk
# Newer versions of Windows seems to have increased its internal
# buffer and tries to send as much of the data as it can as it
# has some form of buffering for this which is less than 256KiB
# on newer server versions and Windows 11.
# So DATA should be larger than 256 KiB to make this test reliable.
DATA = b"x" * (1024 * 256 + 1)
# Linux >= 6.10 seems buffering up to 17 pages of data.
# So DATA should be large enough to make this test reliable even with a
# 64 KiB page configuration.
DATA = b"x" * (1024 * 17 * 64 + 1)
# Reduce socket buffer size to test on relative small data sets.
BUF_SIZE = 4 * 1024 # 4 KiB