Bug#839600: perl: concatenating string instead of sprintf takes all computation power of server

[gregor herrmann]

On Sun, 02 Oct 2016 22:44:35 +0300, Niko Tyni wrote:

> > So the problem exists on current debian stable version (jessie), and
> > doesn't exist on newer versions. 
> I see this on current sid/amd64 (Perl 5.24) too fwiw, and also in an
> amd64 chroot with Perl 5.22. I've no idea why it goes away for you on
> stretch. Can you confirm that? Are you only testing on i386 or on amd64
> as well?

I don't see this on sid (amd64):

% for i in $(seq 1 100); time perl run_tests.pl 
[..]
perl run_tests.pl  0.08s user 0.01s system 98% cpu 0.093 total
perl run_tests.pl  0.15s user 0.00s system 98% cpu 0.158 total

(These are the fastest and the slowest of the 100 runs.)


Cheers,
gregor

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