Here's a post that talks about the old assembly for 64bit x86. http://zombe.es/post/4059999783/openssl-outmoded-asm
Performance is up to 50% worse for AES ciphers so I would think this is a must fix. Patch available for RC4 on x86_64. http://cvs.openssl.org/filediff?f=openssl/crypto/rc4/asm/rc4-x86_64.pl&v1=1.12&v2=1.13 For the rest, the option should be to disable ASM for 64bit and rely on AESNI for processors with AES-NI support. Possible patch here: http://dl.dropbox.com/u/24257718/openssl-1.0.0d-noasm_aes_rc4.patch Another data point: http://old.nabble.com/64-bit-OpenSSL-FIPS-1.2.3-with-asm-slow-performance-problems-on-AES-td32773268.html -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/940230 Title: openssl on 64bit is much slower than before To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openssl/+bug/940230/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs