STINNER Victor added the comment:
> rdmurray@pydev:~/python/p34>python -c 'import resource;
> print(resource.getrlimit(resource.RLIMIT_NOFILE))'
> (1024L, 1048576L)
Oh, 1 million files is much bigger than 4 thousand files (4096).
The test should only test FD_SETSIZE + 10 files, the problem is to get
FD_SETSITE:
# A scalable implementation should have no problem with more than
# FD_SETSIZE file descriptors. Since we don't know the value, we just
# try to set the soft RLIMIT_NOFILE to the hard RLIMIT_NOFILE ceiling.
For example, on my Linux FD_SETSIZE is 1024, whereas the hard limit of
RLIMIT_NOFILE is 4096.
/usr/include/linux/posix_types.h:#define __FD_SETSIZE 1024
Maybe we can simply expose the FD_SETSIZE constant in the select module? The
constant is useful when you use select.select(), which is still heavily used on
Windows.
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<http://bugs.python.org/issue21901>
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