jm + simd   3

BLAKE2: simpler, smaller, fast as MD5
'We present the cryptographic hash function BLAKE2, an improved version
of the SHA-3 finalist BLAKE optimized for speed in software. Target applications include
cloud storage, intrusion detection, or version control systems. BLAKE2 comes
in two main flavors: BLAKE2b is optimized for 64-bit platforms, and BLAKE2s for
smaller architectures. On 64-bit platforms, BLAKE2 is often faster than MD5, yet provides
security similar to that of SHA-3. We specify parallel versions BLAKE2bp and
BLAKE2sp that are up to 4 and 8 times faster, by taking advantage of SIMD and/or
multiple cores. BLAKE2 has more benefits than just speed: BLAKE2 uses up to 32%
less RAM than BLAKE, and comes with a comprehensive tree-hashing mode as well
as an efficient MAC mode.'
crypto  hash  blake2  hashing  blake  algorithms  sha1  sha3  simd  performance  mac 
7 weeks ago by jm
Implementing strcmp, strlen, and strstr using SSE 4.2 instructions - strchr.com
Using new Intel Core i7 instructions to speed up string manipulation. Fascinating stuff. SSE ftw
sse  optimization  simd  assembly  intel  i7  intel-core  strstr  strings  string-matching  strchr  strlen  coding 
january 2013 by jm
Sort vs. Hash Revisited: Fast Join Implementation on Modern Multi-Core CPUs [PDF]
sort-and-merge is likely to be faster on future SIMD-capable multicore CPUs RSN
sort  merge  hash  join  databases  performance  cpu  simd  multicore  from delicious
june 2010 by jm

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