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Postings from August 2022
Dear Larry Wall,
Sorry for writing you directly, but I know you
sometimes answer questions on this mailing list.
And those answers are uniquely easy for a beginner
to understand.
The compile times of Perl5 and Perl6 are dramatically
different. Perl 5 is literally 100 times or more
faster than Perl6. It is professionally embarrassing
to turn over a program to customer that takes up to
20 seconds to start.
I have reported the issue over on:
https://github.com/perl-foundation-outreach/gsoc-2021-ideas/issues/4
From the bug report, I compared a program I ported from
Perl 5 to Perl 6.
$ raku -c --stagestats GetUpdates.pl6
Stage start : 0.000
Stage parse : 17.851
Stage syntaxcheck: Syntax OK
$ time perl -c GetUpdates.pl
GetUpdates.pl syntax OK
real 0m0.305s
user 0m0.243s
sys 0m0.029s
17.851 versus 0.75 seconds. Or 238 times slower.
Since you wrote both Perl 5 and Perl 6, is there some
reason beyond my limited understanding of how these
things work as to why your Perl 5 is so much faster to
compile that your Perl 6?
And is wishing for the situation to be corrected
not a reasonable request?
Also, am I stuck with the .precomp work around, which
is not helpful when you have to run a lot of
iterations to debug things such are regex's?
17 seconds to see if I goofed a regex is killing me!
Many thanks,
-T
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