[Octave-bug-tracker] [bug #48736] Multiplication is thrice as fast as division

[Mike Miller]

Update of bug #48736 (project octave):

                Category:                    None => Interpreter            
              Item Group:                    None => Performance            
                  Status:                    None => Confirmed              

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Follow-up Comment #1:

I see a similar performance difference between the in-place multiplication and
division by a scalar:


>> x = rand (1e8, 1);
>> tic; for i=1:10, x *= 1; endfor; mult_time = toc;
>> tic; for i=1:10, x /= 1; endfor; div_time = toc;
>> div_time / mult_time
ans =  2.5274



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