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dokan-dev / dokany

User mode file system library for windows with FUSE Wrapper
http://dokan-dev.github.io
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align buffer at 64-byte boundary so that memcpy can take advantage of… #1141

Open qiqian opened 1 year ago

qiqian commented 1 year ago

memcpy can take advantage of erms or avx instructions on moden cpus these instructions run much faster (up to 20% in my test case) on 64-byte aligned address

Liryna commented 1 year ago

Hi @qiqian ,

This is a great change but unfortunately it will break the library - kernel API which means releasing a major version. If that's fine for you, I will keep this change and merge it when we plan a new major version!

qiqian commented 1 year ago

Hi, it's ok for me, I have made a local workaround to speedup memcpy, just wish it to be merged in the master branch, so I don't have to keep maintaining a custom branch :)