what's a reason that first for loop take much time instead of second?
1889
How do I write a correct micro-benchmark in Java?
60921
Why does Python "preemptively" hang when trying to calculate a very large number?
42605
Is there a technical reason to use > (<) instead of != when incrementing by 1 in a 'for' loop?
133075
function declaration faster than function expression?
67896
OpenMP program is slower than sequential one
142576
Why does [1].append(2) evaluate to None instead of [1,2]?
24841
Why are elementwise additions much faster in separate loops than in a combined loop?
92536
Avoiding nested for loops
91441
What is the scope of a 'while' and 'for' loop?
2029
Elements order in a "for (… in …)" loop
35697
Performance of Arrays vs. Lists
14382
MATLAB parfor is slower than for -- what is wrong?
8057
In .NET, which loop runs faster, 'for' or 'foreach'?
141725
for loop in Java runs 3 times before taking next input
118828
Complicated FOR loop nesting. Having trouble cleaning up legacy code
72581
Why most JavaScript native functions are slower than their naive implementations?
31259
Re-arranging / selecting of a data table very slow in For loop