, output = function ( n, e, s, t ) {
        log( '- %s length is %s', n, t );
        log( '- %s mem usage is %d KBytes', n, ( ( e.rss - s.rss ) / 1024 ).toFixed( 1 ) );
        log( '- %s heap usage is %d KBytes', n, ( ( e.heapUsed - s.heapUsed ) / 1024 ).toFixed( 1 ) );
        log( '- %s avg mem usage per element is %d bytes', n, ( ( e.rss - s.rss ) / t ).toFixed( 1 ) );