Christian Heimes <li...@cheimes.de> added the comment: I'm pretty sure that your PR has disabled all SSE optimizations. AFAIK gcc does not enable SSE3 and SSE4 on X86_64 by default.
$ gcc -dM -E - < /dev/null | grep SSE #define __SSE2_MATH__ 1 #define __SSE_MATH__ 1 #define __SSE2__ 1 #define __SSE__ 1 You have to set a compiler flag like -msse4 $ gcc -msse4 -dM -E - < /dev/null | grep SSE #define __SSE4_1__ 1 #define __SSE4_2__ 1 #define __SSE2_MATH__ 1 #define __SSE_MATH__ 1 #define __SSE2__ 1 #define __SSSE3__ 1 #define __SSE__ 1 #define __SSE3__ 1 ---------- nosy: +christian.heimes resolution: fixed -> stage: resolved -> status: closed -> open _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue31834> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com