... my @bases = ( 'fred', join( '', 'a'..'z' ), unpack( 'b*', pack 'Q*', 0 .. 99 ), ); my %res; for my $base ( @bases ) { for my $reps ( 1, 10, 100, 1000 ) { my $str = $base x $reps . substr( $base, 0, rand( length $base ) ); for my $test ( keys %tests ) { my $start = time; my $res; eval { local $SIG{ALRM} = sub { die "timeout\n" }; alarm $T * $reps; $res = $tests{ $test }->( \$str ) // 'none found'; alarm 0; }; if( $@ eq "timeout\n" ) { delete $tests{ $test }; warn "$test timed out [@{[ $T * $reps ]}]; excluded\n"; next; } my $stop = time; warn "$test: Found '$res' instead of '$base'\n" unless $res eq $base; $res{ $test }{ length( $base ) }{ $reps } = $stop - $start; $res{ $test }{ length( $base ) }{ all } += $stop - $start; $res{ $test }{ all } += $stop - $start; printf "b:%5u in s:%10u %10s :: %f s\n", length( $base ), length( $str ), $test, $stop - $start ; } } } pp \%res; __END__ [18:23:33.12] C:\test>1039630-b.pl14 -SHOW=0 -T=10 tye found 'fredfrefred'; excluded from further consideration svc4 found 'redfrefredf'; excluded from further consideration hdb found 'none found'; excluded from further consideration choroba found 'fredfrefredfre'; excluded from further consideration Eily found 'fredfrefred'; excluded from further consideration Partisipants in performance tests: anomalous tobyink damianc anomalous timed out [10]; excluded { anomalous => { 4 => { 1 => "0.000113964080810547", 10 => "0.000288963317871094", 100 => "0.00277900695800781", 1000 => "0.0275580883026123", all => "0.0307400226593018", }, 26 => { 1 => "0.0011751651763916", 10 => "0.00826501846313477", 100 => "0.118575096130371", 1000 => "4.02753186225891", all => "4.15554714202881", }, all => "4.18628716468811", }, damianc => { 4 => { 1 => "0.000234842300415039", 10 => "0.000370979309082031", 100 => "0.000273942947387695", 1000 => "0.000956058502197266", all => "0.00183582305908203", }, 26 => { 1 => "0.000357866287231445", 10 => "0.000438928604125977", 100 => "0.00239300727844238", 1000 => "0.0216219425201416", all => "0.0248117446899414", }, 6400 => { 1 => "1.69514513015747", 10 => "12.9105410575867", 100 => "135.586049079895", 1000 => "1520.64571499825", all => "1670.83745026588", }, all => "1670.86409783363", }, tobyink => { 4 => { 1 => "0.000294923782348633", 10 => "0.000179052352905273", 100 => "5.60283660888672e-005", 1000 => "5.10215759277344e-005", all => "0.000581026077270508", }, 26 => { 1 => "7.60555267333984e-005", 10 => "0.000123977661132813", 100 => "0.00015711784362793", 1000 => "0.000526189804077148", all => "0.000883340835571289", }, 6400 => { 1 => "0.071134090423584", 10 => "0.232213973999023", 100 => "4.46547484397888", 1000 => "61.8524870872498", all => "66.6213099956512", }, all => "66.6227743625641", }, }