Hi All,

I am have been cloning drives with several versions of xcode and am seeing very 
long copy times. Perhaps just because of xcode I am noticing the change. Xcode 
of course has many files (400,000+)  many xattrs and compressed bits, decmpfs… 
so only natural it will be slow but sometimes upwards of 1/2 hour to a fast 
drive for xcode. If I turn off Xattrs (leave out the X) it flies through in 
three minutes or so.  

I don’t know if there is anything to be done but wonder if anyone has any ideas 
or tweaks to speed up those xattrs? 

Am using rsync 3.1.1 but would assume no new changes in 3.1.2 to affect any of 
this.

usual OS X build (on Sierra) 

patch -p1 <patches/fileflags.diff
patch -p1 <patches/crtimes.diff
patch -p1 <patches/hfs-compression.diff 
with my additions, progress tweaks etc. (Base build is same performance)

-aHAXN --fileflags --force-change  --protect-decmpfs --numeric-ids 
--protect-args --stats -v

Thanks,  Rob



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