> my Data $ed = await $yenc_promise; The promise must initialize each element of the CArray[uint]. It looks pretty quick; I'm guessing it's low-level code doing that.
> my uint8 @data = $ed.data[0..$ed.data_size-1].Array; > my Blob $bindata = Blob[uint8].new(@data); Afaict that's a total of five HLL element-by-element copies. I would expect this to work and be at least as fast and possibly a lot faster: my Blob $bindata .= new: $ed.data; hth
