[issue32147] improve performance of binascii.unhexlify() by using conversion table

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

Yes. And I can't reproduce a slowdown with a simplified a2b_qp(). Maybe this depends on the compiler and on the CPU. What are your OS, compiler and CPU? Do you build 32- or 64-bit Python? Do you build in a debug or release mode?

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<https://bugs.python.org/issue32147>
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