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This queue is for tickets about the Test-Harness CPAN distribution.

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The Basics
Id: 112807
Status: new
Priority: 0/
Queue: Test-Harness

Owner: Nobody in particular
Requestors: KENTNL [...]

Bug Information
Severity: (no value)
Broken in: 3.36
Fixed in: (no value)

Subject: Number of items in @INC scales with -j and process-number

The attached script generates a directory structure that replicates this problem, and then the output of concatting the various per-pid output files shows how some pid's get much larger @INC's, despite the code itself not changing.

But the general problem is essentially

 prove -j4  a b c d


Results in a getting 1x lib, b getting 2 x lib, c getting 3x lib, d getting 4xlib, etc ( but not necessarily in that order or distribution, its kinda random )


The only good part is it seems to cap out  at -jN, and for some reason it gives the impression once N is reached it goes back to alternating between one and 2x lib.


But its not great.



text/x-perl 594b
#!/usr/bin/env perl # ABSTRACT: Make sure prove doesn't daisychain lib use strict; use warnings; use File::Temp qw( tempdir ); my $n_jobs = 20; my $tempdir = tempdir( TEMPDIR => 1 ); my $target = quotemeta("$tempdir/inc"); my $content = <<"EOF"; open my \$fh, '>>', \"$target-\$\$\"; for my \$entry ( \@INC ) { print { \$fh } "\$entry\n"; } close \$fh; EOF for my $job ( 1 .. $n_jobs ) { open my $fh, '>', "$tempdir/test-$job.t"; print {$fh} $content; close $fh; } system("prove","-lj${n_jobs}",map { "$tempdir/test-$_.t" } 1 .. $n_jobs ); system("grep '' \"$tempdir/inc-\"*");

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