38 lines
994 B
Bash
38 lines
994 B
Bash
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Start up the specified number of jitter.sh scripts in the background.
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#
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# Usage: . jitterstart.sh n jittering-dir duration [ sleepmax [ spinmax ] ]
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#
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# n: Number of jitter.sh scripts to start up.
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# jittering-dir: Directory in which to put "jittering" file.
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# duration: Time to run in seconds.
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# sleepmax: Maximum microseconds to sleep, defaults to one second.
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# spinmax: Maximum microseconds to spin, defaults to one millisecond.
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#
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# Copyright (C) 2021 Facebook, Inc.
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#
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# Authors: Paul E. McKenney <paulmck@kernel.org>
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jitter_n=$1
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if test -z "$jitter_n"
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then
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echo jitterstart.sh: Missing count of jitter.sh scripts to start.
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exit 33
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fi
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jittering_dir=$2
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if test -z "$jittering_dir"
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then
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echo jitterstart.sh: Missing directory in which to place jittering file.
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exit 34
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fi
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shift
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shift
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touch ${jittering_dir}/jittering
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for ((jitter_i = 1; jitter_i <= $jitter_n; jitter_i++))
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do
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jitter.sh $jitter_i "${jittering_dir}/jittering" "$@" &
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done
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