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37 lines
1.1 KiB
37 lines
1.1 KiB
#!/bin/sh
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# --- SDE-COPYRIGHT-NOTE-BEGIN ---
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# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
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#
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# Filename: target/sheba/pkgs/clockspeed/D%sysconfdir_clockspeed_clockspeed-adjust_run.sh
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# Copyright (C) 2008 The OpenSDE Project
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#
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# More information can be found in the files COPYING and README.
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#
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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; version 2 of the License. A copy of the
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# GNU General Public License can be found in the file COPYING.
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# --- SDE-COPYRIGHT-NOTE-END ---
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# based on http://www.thedjbway.org/clocksd/index.html
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exec 2>&1
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WAIT=$( expr 9 \* 3600 ) # first in 9 hours
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WAIT_MAX=$( expr 7 \* 24 \* 3600 ) # at least once per week
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# loop indefinitely
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while true; do
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echo "Waiting ${WAIT} seconds until next adjustment..."
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sleep ${WAIT}
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# obtain timing mark for calibrating clockspeed adjust:
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clockctl mark
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# log current "attoseconds":
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clockctl atto
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echo "==="
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if [ $WAIT -lt $WAIT_MAX ]; then
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WAIT=$( expr $WAIT \* 2 )
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[ $WAIT -le $WAIT_MAX ] || WAIT=$WAIT_MAX
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fi
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done
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