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2026-03-12 20:23:15

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2026-03-12 21:23:47 +01:00
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tpt/aot/enable_throttle.sh Normal file
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#!/bin/bash
# Copyright 2020 Tanel Poder. All rights reserved.
# Licensed under the Apache License, Version 2.0.
# Purpose: enable I/O throttling for a block device using cgroups
#
# Usage: find block device major:minor numbers using ls -l /dev or lsblk
# ./enable_throttle.sh <major:minor> <max_iops> <max_bps>
# ./enable_throttle.sh 259:3 500 100000000
#
# More info at https://tanelpoder.com
DEVICE_ID=$1
DEVICE_IOPS=$2
DEVICE_BPS=$3
echo $DEVICE_ID $DEVICE_IOPS > /sys/fs/cgroup/blkio/blkio.throttle.write_iops_device
echo $DEVICE_ID $DEVICE_IOPS > /sys/fs/cgroup/blkio/blkio.throttle.read_iops_device
echo $DEVICE_ID $DEVICE_BPS > /sys/fs/cgroup/blkio/blkio.throttle.write_bps_device
echo $DEVICE_ID $DEVICE_BPS > /sys/fs/cgroup/blkio/blkio.throttle.read_bps_device
grep . /sys/fs/cgroup/blkio/blkio.throttle*device