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#!/usr/bin/env python
# Light-weight tool to watch the /proc/interrupts file, to be combined like:
#
# ./watch-intr.py > intr.txt
# ./interrupts-graph.py -i intr.txt
import argparse, sys, time
parser = argparse.ArgumentParser()
parser.add_argument("limit", type=int, default=0, nargs="?",
help="Number of repetitions (or 0 for infinity), default %(default)d")
parser.add_argument("delay", type=int, default=1, nargs="?",
help="Interval between printing, default %(default)d second")
args = parser.parse_args()
limit, delay = args.limit, args.delay
def print_and_flush(data):
sys.stdout.write(data)
sys.stdout.write("\n")
sys.stdout.flush()
try:
with open("/proc/interrupts") as f:
print_and_flush(f.read())
while limit != 1:
if limit > 0:
limit -= 1
time.sleep(delay)
f.seek(0)
print_and_flush(f.read())
except KeyboardInterrupt:
pass
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