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In liu of a 'renice' cmdline utility on Windows. Requires Python and the https://github.com/giampaolo/psutil library.
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#!/usr/bin/env python | |
# Copyright (c) 2019, Giampaolo Rodola', Michael Clark. All rights reserved. | |
# Use of this source code is governed by a BSD-style license that can be | |
# found in the LICENSE file. | |
# https://github.com/giampaolo/psutil/blob/master/LICENSE | |
""" | |
In liu of a 'renice' cmdline utility on Windows. | |
$ winrenice chrome.exe below | |
13912 chrome.exe Priority.BELOW_NORMAL_PRIORITY_CLASS | |
14920 chrome.exe Priority.BELOW_NORMAL_PRIORITY_CLASS | |
""" | |
from __future__ import print_function | |
import sys, os, collections | |
import psutil | |
if os.name != 'nt': | |
sys.exit("Platform not supported (Windows only).\nHint: Use built-in 'renice' on Linux/Unix/macOS/BSD.") | |
ACCESS_DENIED = '' | |
def renice(pgname, priority): | |
procs = [] | |
for proc in psutil.process_iter(attrs=['name', 'cmdline']): | |
# search for matches in the process name and cmdline | |
if proc.info['name'] == pgname or proc.info['cmdline'] and proc.info['cmdline'][0] == pgname: | |
procs.append(proc) | |
proc.nice(priority) | |
nproc = psutil.Process(proc.pid) | |
ninfo = nproc.as_dict(attrs=['nice'], ad_value=ACCESS_DENIED) | |
print("%s\t%s\t%s" % (proc.pid, proc.info['name'], ninfo['nice'])) | |
if len(procs) == 0: | |
print("No matching processes found.") | |
def main(): | |
priority_map = collections.OrderedDict([ | |
("real", psutil.REALTIME_PRIORITY_CLASS), | |
("high", psutil.HIGH_PRIORITY_CLASS), | |
("above", psutil.ABOVE_NORMAL_PRIORITY_CLASS), | |
("normal", psutil.NORMAL_PRIORITY_CLASS), | |
("below", psutil.BELOW_NORMAL_PRIORITY_CLASS), | |
("idle", psutil.IDLE_PRIORITY_CLASS), | |
]) | |
usage = 'usage: %s <pgname> %s' % (os.path.basename(__file__), '|'.join(priority_map.keys())) | |
if len(sys.argv) != 3: | |
sys.exit(usage) | |
else: | |
pgname = sys.argv[1] | |
priarg = sys.argv[2] | |
if not priarg in priority_map: | |
sys.exit('Invalid priority specified.\n' + usage) | |
priority = priority_map[priarg] | |
renice(pgname, priority) | |
if __name__ == '__main__': | |
main() |
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