From a quick C/ (++) implementation of BLAKE3, in my ZPAQ's fork archiver, I found modest performance (file hashing), similar to ~ SHA256 (~300MB/s) on single thread (just C code, no ASM).

Indeed good for a cryptographic hash, but the inability to use multithreading (which in my opinion is the real advantage of BLAKE3) leaves me unsatisfied.

The use is twofold: integrity check of archived files and deduplication of documents from filesystems

Are there any plans for this (multithreaded in C/C ++) via pthread or whatever?

Thank you for all reply