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-rw-r--r--Lib/test/support.py6
1 files changed, 3 insertions, 3 deletions
diff --git a/Lib/test/support.py b/Lib/test/support.py
index e6724a8..d089767 100644
--- a/Lib/test/support.py
+++ b/Lib/test/support.py
@@ -576,9 +576,9 @@ IPV6_ENABLED = _is_ipv6_enabled()
# A constant likely larger than the underlying OS pipe buffer size.
-# Windows limit seems to be around 512B, and most Unix kernels have a 64K pipe
-# buffer size: take 1M to be sure.
-PIPE_MAX_SIZE = 1024 * 1024
+# Windows limit seems to be around 512B, and many Unix kernels have a 64K pipe
+# buffer size or 16*PAGE_SIZE: take a few megs to be sure. This
+PIPE_MAX_SIZE = 3 * 1000 * 1000
# decorator for skipping tests on non-IEEE 754 platforms