Read hard disk performance active time

Question

Work on a monitoring application to monitor the performance of the processor and the hard disk

The processor performance check part was simple using psutil

But it is difficult to get information about the performance of the hard disk from this library

I tried to go to the traditional methods, but the cost was great in performance

I want to get something like this Disk in/out: XX MB/s and Disk active time: XX% like in Windows resources monitor

psutil return sdiskio contain

(read_count=xxxx, write_count=xxxx, read_bytes=xxxx, write_bytes=xxx, read_time=xxxx, write_time=xxx)

I cannot determine through these numbers the active time of the hard drive

---

#update

what I'm tried so far

while(True):
    disk_io_counter = psutil.disk_io_counters(perdisk=True)['PhysicalDrive1']
    disk_read_bytes = disk_io_counter[2]  # read_bytes 
    disk_write_bytes = disk_io_counter[3] #  write_byte
    disk_read_time = disk_io_counter[4]  # read_time
    disk_write_time = disk_io_counter[5] #  write_time
    time.sleep(1)
    disk_io_counter = psutil.disk_io_counters(perdisk=True)['PhysicalDrive1']
    disk_read_bytes1 = disk_io_counter[2]   # read_bytes 
    disk_write_bytes1 = disk_io_counter[3] #  write_byte
    disk_read_time1 = disk_io_counter[4]  # read_time
    disk_write_time1 = disk_io_counter[5] #  write_time


    total_read = disk_read_bytes1 -disk_read_bytes 
    total_write = disk_write_bytes1 - disk_write_bytes
    total_read_time = disk_read_time1 -disk_read_time 
    total_write_time = disk_write_time1 - disk_write_time


    print("Read : ",bytes2human( total_read) )
    print("Write : ",bytes2human( total_write) )

    print("Time_Read : ",total_read_time )
    print("Time_Write : ",total_write_time )
 

that gives me the right read and write speed but still nothing about the actual percentage