[issue21638] Seeking to EOF is too inefficient!

[Linlin Yan]

Linlin Yan added the comment:

I ensured that the problem is in libc. I will try to figure out it by updating libc or optimizing some related parameters.

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resolution:  -> third party
status: open -> closed

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue21638>
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