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https://github.com/SCST-project/scst.git
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Gleb Chesnokov
13839f3f6a
Place interrupt and memory monitors beside the block-device benchmark and persistent-reservation exerciser. Update the SRPT maintainer instructions and copyright paths with the move. The four helpers are byte-for-byte unchanged, including their existing privilege requirements and device or host side effects.
89 lines
1.9 KiB
Bash
Executable File
89 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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############################################################################
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#
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# Script for monitoring system-wide memory usage.
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#
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# Copyright (C) 2009 Bart Van Assche <bvanassche@acm.org>.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation, version 2
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# of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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############################################################################
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#########################
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# Function definitions #
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#########################
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function usage {
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echo "Usage: $0 [-h] [-i <interval>]"
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echo " -h - display this information."
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echo " -i - monitoring interval in seconds."
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}
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#########################
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# Default settings #
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#########################
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interval=10
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#########################
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# Argument processing #
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#########################
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getopt_args=$(/usr/bin/getopt -o "hi:" -- "$@") || {
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usage
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exit 1
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}
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# GNU getopt emits shell-quoted arguments; eval restores them losslessly.
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# shellcheck disable=SC2294
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eval set -- "$getopt_args"
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while [ "$1" != "${1#-}" ]
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do
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case "$1" in
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'-i') interval="$2"; shift; shift;;
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'--') shift;;
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*) usage; exit 1;;
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esac
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done
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if [ "$#" != 0 ] || ! [[ "${interval}" =~ ^0*[1-9][0-9]*$ ]]; then
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usage
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exit 1
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fi
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interval="${interval#"${interval%%[!0]*}"}"
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####################
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# Performance test #
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####################
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printf "%-10s " "Time"
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cat /proc/meminfo |
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while read -r label number _
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do
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printf " %10s" "${label%:}"
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done
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echo
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while true
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do
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printf "%-10d" "$(date +%s)"
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cat /proc/meminfo |
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while read -r label number _
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do
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printf " %10d" "${number}"
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done
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echo
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sleep "${interval}"
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done
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