------- Comment From i...@de.ibm.com 2021-08-11 06:59 EDT------- zlib1g_1.2.11.dfsg-2ubuntu7~ppa2_s390x.deb works fine, thanks!
# time -p env DFLTCC=0 python3 -c 'import gzip; gzip.decompress(gzip.compress(b"\x00" * 500000000, 1))' real 2.59 user 2.23 sys 0.35 # dpkg -i zlib1g_1.2.11.dfsg-2ubuntu7~ppa2_s390x.deb # time -p env DFLTCC=0 python3 -c 'import gzip; gzip.decompress(gzip.compress(b"\x00" * 500000000, 1))' real 1.99 user 1.62 sys 0.36 However, I'm not quite sure why does ++#ifdef S390_CRC32_VX ++ if (getauxval(AT_HWCAP) & HWCAP_S390_VX) ++ return s390_crc32_vx; ++#endif work. For me getauxval() causes a segfault when called from an ifunc, that's why I have to use the s390-specific ifunc's hwcap parameter. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1932010 Title: [21.10 FEAT] zlib CRC32 optimization for s390x To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-z-systems/+bug/1932010/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
