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#!/bin/bash

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# 0x.Tools by Tanel Poder [https://0x.tools]

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# This program is free software; you can redistribute it and/or modify

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# it under the terms of the GNU General Public License as published by

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# the Free Software Foundation; either version 2 of the License, or

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# (at your option) any later version.

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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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# You should have received a copy of the GNU General Public License along

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# with this program; if not, write to the Free Software Foundation, Inc.,

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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

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FREQUENCY=1 # 1 Hz sampling

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SUDO=sudo # change to empty string if running without sudo

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NICE=-5

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SLEEP=60

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PERF=/usr/bin/perf

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if [ $# -ne 1 ]; then

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echo "Usage: $0 output_dir"

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exit 1

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logger "$0 Starting up outdir=$1 nice=$NICE"

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while true ; do

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$SUDO nice -n $NICE $PERF record -g -F $FREQUENCY -a \

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--switch-output=1m \

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--timestamp-filename \

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--timestamp \

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-o $1/xcpu

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# we only get here should perf be terminated, try to restart

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logger "$0 terminated with $?, attempting to restart in $SLEEP seconds"

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sleep $SLEEP

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done

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