antonmks

def find_max(efficiency):
    efficiency.sort()
    max_eff = -1
    max_ind = 0
    max_eff =  efficiency[1]-efficiency[0]

    if efficiency[len(efficiency)-1]-efficiency[len(efficiency)-2] > max_eff:
        max_ind = len(efficiency)-1
        max_eff = efficiency[len(efficiency)-1]-efficiency[len(efficiency)-2]

antonmks

 Sort scalability on modern cpus

 We don't need core counts of thirty
 If we win by playing dirty!

 Lets test linux sort on Coffee Lake generation processor :
 System : Ubuntu 16, 6 cores i5-8500, 16GB of DDR4, Nvidia GTX 1080
 Test file : 760 MB text file of tab separated numeric and text fields from TPC-H benchmark
 The sort program is run repeatedly, so the source file is read from cache, the results are written
 to /dev/null so we are comparing the cpu sort performance and not the disk performance.

antonmks

#include <algorithm>
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <vector>
#include <numeric>
#include <sstream>
#include <stdint.h>

antonmks

#include <algorithm>
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <numeric>
#include <sstream>
#include <stdint.h>

antonmks

#include <algorithm>
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <numeric>
#include <sstream>
#include <stdint.h>

antonmks

#include <algorithm>
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <numeric>
#include <sstream>
#include <stdint.h>

antonmks

#include <algorithm>
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <numeric>
#include <sstream>
#include <stdint.h>

antonmks

#include <algorithm>
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <numeric>
#include <sstream>
#include <stdint.h>

antonmks

#include <algorithm>
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <numeric>
#include <sstream>
#include <stdint.h>

antonmks

#include <algorithm>
#include <ctime>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <iterator>
#include <map>
#include <numeric>
#include <sstream>
#include <stdint.h>