It seems to me that  if (condition) { statement } is sometime faster than  statement if condition With perl 5.6.0 I get: 
use Benchmark
;timethese (200, {
    'if_cond_then_statement'=> sub  {
        ;my $ris=0
        ;for my $i (0..100000) {
            if (int ($i/2)>7) { $ris+=1 }
        }
    }    
    ,'statement_if_cond'=> sub  {
        ;my $ris=0
        ;for my $i (0..100000) {
            $ris+=1 if int ($i/7)>0            
        }
    }
})

Benchmark: timing 200 iterations of if_cond_then_statement, statement_
+if_cond...if_cond_then_statement: 61 wallclock secs (58.33 usr +  0.0
+3 sys = 58.36 CPU) @
 3.43/s (n=200)
statement_if_cond: 60 wallclock secs (59.15 usr +  0.01 sys = 59.16 CP
+U) @  3.38/s (n=200)

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Am I missing something?

In reply to Re: How Perl Optimize your code & some code TIPS ;-P by slim
in thread How Perl Optimize your code & some code TIPS ;-P by gmpassos

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