Comment by rgovostes

On macOS, Backblaze ships with 21 identical copies of the same executable, nearly 200 MB in all, presumably because they don't realize you can just execute one binary n times (with different argv[0] if they'd like) and they haven't written their code to be thread safe.

Needless to say it doesn't instill confidence in the quality of software engineering that I rely on for disaster recovery.

    % openssl md5 /Library/Backblaze.bzpkg/bztrans*
    MD5(/Library/Backblaze.bzpkg/bztrans_thread00)= 772308dbd9b8083f4dc1c31bfe6a28da  
    MD5(/Library/Backblaze.bzpkg/bztrans_thread01)= 772308dbd9b8083f4dc1c31bfe6a28da
    ...
    MD5(/Library/Backblaze.bzpkg/bztrans_thread19)= 772308dbd9b8083f4dc1c31bfe6a28da
    MD5(/Library/Backblaze.bzpkg/bztransmit)= 772308dbd9b8083f4dc1c31bfe6a28da