Michael Erdely
ce9dada330
Changes: * Align columns with "column -t" * Add Arch Linux support in packages.sh
60 lines
3.2 KiB
Bash
Executable file
60 lines
3.2 KiB
Bash
Executable file
#!/bin/sh
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# SPDX-FileCopyrightText: 2024 Splunk, Inc.
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# SPDX-License-Identifier: Apache-2.0
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# suggested command for testing reads: $ find / -type f 2>/dev/null | xargs wc &> /dev/null &
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# shellcheck disable=SC1091
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. "$(dirname "$0")"/common.sh
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assertHaveCommand column
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if [ "$KERNEL" = "Linux" ] ; then
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CMD='iostat -xky 1 1'
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assertHaveCommand "$CMD"
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# considers the device, r/s and w/s columns and returns output of the first interval
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FILTER='/Device/ && /r\/s/ && /w\/s/ {f=1;}f'
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elif [ "$KERNEL" = "SunOS" ] ; then
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CMD='iostat -xn 1 2'
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assertHaveCommand "$CMD"
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# considers the device, r/s and w/s columns and returns output of the second interval
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FILTER='/device/ && /r\/s/ && /w\/s/ {f++;} f==2'
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elif [ "$KERNEL" = "AIX" ] ; then
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CMD='iostat 1 2'
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assertHaveCommand "$CMD"
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# considers the disks, kb_read and kb_wrtn columns and returns output of the second interval
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FILTER='/^cd/ {next} /Disks/ && /Kb_read/ && /Kb_wrtn/ {f++;} f==2'
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elif [ "$KERNEL" = "OpenBSD" ] ; then
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CMD='systat -B iostat'
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assertHaveCommand "$CMD"
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HEADER="Device rB/s wB/s r/s w/s"
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HEADERIZE="BEGIN {print \"$HEADER\"}"
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FILTER=$HEADERIZE'/^[^ \t]/ && !/^(DEVICE|Totals)/{printf "%-7s %.2f %.2f %d %d\n", $1, $2/1024, $3/1024, $4, $5}'
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elif [ "$KERNEL" = "FreeBSD" ] ; then
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CMD='iostat -x -c 2'
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assertHaveCommand "$CMD"
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# considers the device, r/s and w/s columns and returns output of the second interval
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FILTER='/device/ && /r\/s/ && /w\/s/ {f++;} f==2'
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elif [ "$KERNEL" = "Darwin" ] ; then
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CMD="eval $SPLUNK_HOME/bin/darwin_disk_stats ; sleep 2; echo Pause; $SPLUNK_HOME/bin/darwin_disk_stats"
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# shellcheck disable=SC2086
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assertHaveCommandGivenPath $CMD
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# shellcheck disable=SC2016
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HEADER='Device rReq_PS wReq_PS rKB_PS wKB_PS avgWaitMillis avgSvcMillis bandwUtilPct'
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HEADERIZE="BEGIN {print \"$HEADER\"}"
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PRINTF='{printf "%-10s %11s %11s %12s %12s %13s %13s %13s\n", device, rReq_PS, wReq_PS, rKB_PS, wKB_PS, avgWaitMillis, avgSvcMillis, bandwUtilPct}'
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# shellcheck disable=SC2016
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FILTER='BEGIN {FS="|"; after=0} /^Pause$/ {after=1; next} !/Bytes|Operations/ {next} {devices[$1]=$1; values[after,$1,$2]=$3; next}'
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FORMAT='avgSvcMillis=bandwUtilPct="?";'
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FUNC1='function getDeltaPS(disk, metric) {delta=values[1,disk,metric]-values[0,disk,metric]; return delta/2.0}'
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# Calculates the latency by pulling the read and write latency fields from darwin__disk_stats and evaluating their sum
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LATENCY='function getLatency(disk) {read=getDeltaPS(disk,"Latency Time (Read)"); write=getDeltaPS(disk,"Latency Time (Write)"); return expr read + write;}'
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FUNC2='function getAllDeltasPS(disk) {rReq_PS=getDeltaPS(disk,"Operations (Read)"); wReq_PS=getDeltaPS(disk,"Operations (Write)"); rKB_PS=getDeltaPS(disk,"Bytes (Read)")/1024; wKB_PS=getDeltaPS(disk,"Bytes (Write)")/1024; avgWaitMillis=getLatency(disk);}'
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SCRIPT="$HEADERIZE $FILTER $FUNC1 $LATENCY $FUNC2 END {$FORMAT for (device in devices) {getAllDeltasPS(device); $PRINTF}}"
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$CMD | tee "$TEE_DEST" | awk "$SCRIPT" header="$HEADER" | column -t
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echo "Cmd = [$CMD]; | awk '$SCRIPT' header=\"$HEADER\"" >> "$TEE_DEST"
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exit 0
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fi
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$CMD | tee "$TEE_DEST" | $AWK "$FILTER" | column -t
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echo "Cmd = [$CMD]; | $AWK '$FILTER'" >> "$TEE_DEST"
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