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Postings from June 2020
Hi!
> $ed.data.head($ed.data_size)
Unfortunately, i get the error "Error
X::AdHoc+{X::Await::Died}+{X::React::Died}: Don't know how many
elements a C array returned from a library"
> > 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;
Because of the error above, i have to do:
my Blob $bindata .= new: $ed.data[^$ed.data_size];
which takes slightly more than 1 sec:
Bindata in 1.1679568
Btw, the size of the $ed.data_size is 750K.
Regards.
David Santiago
Ralph Mellor <ralphdjmellor@gmail.com> escreveu no dia terça,
16/06/2020 à(s) 23:08:
>
> > 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
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