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Re: Migration despite an RC bug?

Niels Thykier <niels@thykier.net> writes:
> Russ Allbery:

>> I've done extensive benchmarking of this in Perl for a different
>> project and yes, fork and exec of an external compresser is *way*
>> faster than using a library.  I suspect the Perl compress libraries are
>> making extraneous data copies or doing something else suboptimal.

> An exception in my experience: In process is cheaper when the
> (de)compressor is available in the PerlIO Layer as native C code.
> Notable example being libperlio-gzip-perl where you use "open(my $fd,
> '<:gzip', $file)".
>   At least that was the case when I benchmarked on Lintian in 2.5.10 (2
> releases ago).

Ah, I didn't try that!  I was only playing around with IO::Uncompress.  I
may have to go revisit that project, since managing the external process
was a huge pain.

Russ Allbery (rra@debian.org)               <http://www.eyrie.org/~eagle/>

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