Litecoin: enable support for SSE2 instructions in scrypt via configure --enable-sse2 #362
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
SSE2 is missing for Litecoin.
Right now I have this implementation working for Viacoin.
https://github.com/viacoin/viacoin/tree/0.13-dev
Follow-up on my last pull request: #316
#316 (comment)
modified scrypt_test.ccp to only run either SSE2 or non-SSE2 hashing 10000 times. On my low power Intel Atom J2900 CPU the SSE2 version is over 2x faster (42 vs 18 seconds, just pasting one, the results are stable over multiple runs):
To sum up: