import subprocess, multiprocessing as mp, pandas as pd

def speed(core):
    try:
        output = subprocess.run(
            f'sysbench cpu --threads={core} run | grep "events per second"',
            shell=True, capture_output=True, text=True).stdout.split()[-1]
        print(output)
        return output
    except:
        print('\n'
              'sudo apt-get update && sudo apt-get install -y sysbench'
              '\tOR'
              'brew install sysbench'
              '\n')
        raise
        
df = []
for core in range(1, mp.cpu_count()+1):
    s = speed(core)
    df.append((core, s, s/core))
df = pd.DataFrame(df)
df.to_csv('bench.csv', index=False)