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