use constant ({
    START           => 1000,
    NO_OF_CALLS     => 1,
    DEBUG           => 1,
    DET_DEBUG       => 1,
    TOTAL_TIME      => 1,
    DETAILED_TIME   => 1,
    RESPONSE        => 1,
    SLEEP           => undef,
    MICRO_SEC       => 1,
});

use if MICRO_SEC, qw(Time::HiRes time);