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db_bench: optimize Done, replace slow divisions with addition/subtrac… #861

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db_bench: optimize Done, replace slow divisions with addition/subtrac… #861

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Commits on Jun 12, 2024

  1. db_bench: optimize Done, replace slow divisions with addition/subtrac… 

    …tions

There are two slow 64 bit division operations that are computationally quite
expensive. Replace these with a modulo style counter that uses simpler and
faster increment, comparision and subtraction operations. On a 60 second
run, this optimization reduced the function CPU utilization from 21.8 seconds
down to 2.3 seconds on an i7-6700 as measured using Intel vtune.

Signed-off-by: Colin Ian King <[email protected]>
    @ColinIanKing
    ColinIanKing committed Jun 12, 2024
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