Get usage disk of a Windows process by name in Python

Question

I would like to create a script that wait until a specific process has 0 MB/s of disk usage.

import time
import psutil


def get_process(name):
    process = None
    for p in psutil.process_iter():
        if name in p.as_dict()["name"].lower():
            process = p
    return process


def wait_process(name):
    process = get_process(name)
    if process:
        while process.disk_usage() > 0:
            time.sleep(5)


wait_process("firefox")

I tried the psutil module but it seems we can't get disk usage by process.

EDIT

I tried this but I get irrelevant number.

def process_disk_usage(process_name: str) -> float:
    # process = None
    for p in psutil.process_iter():
        if process_name.lower() in p.as_dict()["name"].lower():
            r_bytes = p.io_counters()[2]
            w_bytes = p.io_counters()[3]
            t_bytes = r_bytes + w_bytes
            return t_bytes / (1024.0 * 1024.0)
    return None


def wait_process(process_name: str) -> None:
    while process_disk_usage(process_name) > 0:
        time.sleep(5)

0x77dev · Accepted Answer · 2020-09-07 08:53:59Z

1

 p = psutil.Process()
 io_counters = p.io_counters() 
 disk_usage_process = io_counters[2] + io_counters[3] # read_bytes + write_bytes
 disk_io_counter = psutil.disk_io_counters()
 disk_total = disk_io_counter[2] + disk_io_counter[3] # read_bytes + write_bytes
 print("Disk", disk_usage_process/disk_total * 100)

Answered here: How to get current disk IO and network IO into percentage using Python?

answered Sep 7, 2020 at 8:53

0x77dev

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2 Comments

0lan Over a year ago

I can't get the same result as in the Windows Task Manager. I would like to get the process disk usage in MB/s.

0x77dev Over a year ago

@0lan Maybe you can just use powershell ? (Call powershell script from python)

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