How can I set a variable to divide and round up to 0 decimal places?

@lulala Another root of all evil: cherry-picking results.

Run your benchmark multiple times. I get the following:

       user     system      total        real
   0.120000   0.000000   0.120000 (  0.119281)
   0.120000   0.000000   0.120000 (  0.123431)

Which is a tie.

       user     system      total        real
   0.110000   0.000000   0.110000 (  0.118602)
   0.130000   0.000000   0.130000 (  0.127195)

Which suggests that float_op is faster.

       user     system      total        real
   0.150000   0.000000   0.150000 (  0.151104)
   0.120000   0.000000   0.120000 (  0.123836)

Which suggests that integer_op us faster.

Edited following a comment

number_total = (records / per_page.to_f).ceil

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