Benchmark performance between find and in list to match a key-value from a map present in list.

PerformanceBenchmarkFindVersusInList.groovy

@Grab(group='com.googlecode.gbench', module='gbench', version='11.07.05')

def r = benchmark {
    'findTestWithSmallerListSize' {
        def myList = [[first: 'John', last: 'test']]
        
        myList.find { it.first == 'John' } ? true : false
    }
    'inListTestWithSmallerListSize' {
        def myList = [[first: 'John', last: 'test']]    
        
        'John' in myList*.first
    }

    'findTestWithMatchPresentInEnd' {
        def myList = []
        10000.times { myList << [first: 'Johnx', last: 'test'] }
        myList << [first: 'John', last: 'test']
        
        myList.find { it.first == 'John' } ? true : false
    }
    'inListTestWithMatchPresentInEnd' {
        def myList = []
        10000.times { myList << [first: 'Johnx', last: 'test'] }
        myList << [first: 'John', last: 'test']
    
        'John' in myList*.first
    }
    
    'findTestWithMatchPresentInAverageCenter' {
        def myList = []
        5000.times { myList << [first: 'Johnx', last: 'test'] }
        myList << [first: 'John', last: 'test']
        5000.times { myList << [first: 'Johnx', last: 'test'] }
        
        myList.find { it.first == 'John' } ? true : false
    }
    'inListTestWithMatchPresentInAverageCenter' {
        def myList = []
        5000.times { myList << [first: 'Johnx', last: 'test'] }
        myList << [first: 'John', last: 'test']
        5000.times { myList << [first: 'Johnx', last: 'test'] }
    
        'John' in myList*.first
    }
    
    'findTestWithMatchPresentInFirst' {
        def myList = []
        myList << [first: 'John', last: 'test']        
        10000.times { myList << [first: 'Johnx', last: 'test'] }

        myList.find { it.first == 'John' } ? true : false
    }
    'inListTestWithMatchPresentInFirst' {
        def myList = []
        myList << [first: 'John', last: 'test']
        10000.times { myList << [first: 'Johnx', last: 'test'] }
        
        'John' in myList*.first
    }
}

r.prettyPrint()

//Result
                                              user  system      cpu     real

findTestWithSmallerListSize                    571       0      571      598
inListTestWithSmallerListSize                  411       0      411      411

findTestWithMatchPresentInEnd              2714872      43  2714915  2739768
inListTestWithMatchPresentInEnd            2266303      39  2266342  2431595

findTestWithMatchPresentInAverageCenter    2141836      39  2141875  2263714
inListTestWithMatchPresentInAverageCenter  2261387      37  2261424  2438485

findTestWithMatchPresentInFirst            1667364      27  1667391  1813254
inListTestWithMatchPresentInFirst          2288471      37  2288508  2425089