mirror of
https://git.savannah.gnu.org/git/parallel.git
synced 2024-11-22 14:07:55 +00:00
54 lines
1.9 KiB
Bash
54 lines
1.9 KiB
Bash
#!/bin/bash
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# SPDX-FileCopyrightText: 2021-2022 Ole Tange, http://ole.tange.dk and Free Software and Foundation, Inc.
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#
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# SPDX-License-Identifier: GPL-3.0-or-later
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cpuburn=$(mktemp)
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qcpuburn=$(parallel -0 --shellquote ::: "$cpuburn")
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(echo '#!/usr/bin/perl'
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echo "eval{setpriority(0,0,9)}; while(1){}") > "$cpuburn"
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chmod 700 "$cpuburn"
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basename=$(basename "$cpuburn")
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forceload () {
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# Force load
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LOAD=$1
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# Start 10 times as many cpuburn
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seq 0 0.1 $1 | parallel -j0 timeout 20 "$qcpuburn" 2>/dev/null &
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PID=$!
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# Give GNU Parallel 1 second to startup
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sleep 1
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perl -e 'do{$a=`uptime`} while($a=~/average: *(\S+)/ and $1 < '$LOAD')'
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# Load is now > $LOAD
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}
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# Force load avg > number of cpu cores
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forceload $(parallel --number-of-cores)
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cat <<'EOF' | sed -e 's/;$/; /;s/$SERVER1/'$SERVER1'/;s/$SERVER2/'$SERVER2'/' | stdout parallel -vj0 -k --joblog /tmp/jl-`basename $0` -L1 -r
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echo "bug #38441: CPU usage goes to 100% if load is higher than --load at first job"
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/usr/bin/time -f %e parallel --load 100% true ::: a 2>&1 |
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perl -ne '$_ > 1 and print "More than 1 secs wall clock: OK\n"'
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/usr/bin/time -f %U parallel --load 100% true ::: a 2>&1 |
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perl -ne '$_ < 1 and print "Less than 1 secs user time: OK\n"'
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echo '### Test slow arguments generation - https://savannah.gnu.org/bugs/?32834'
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seq 1 3 | parallel -j1 "sleep 2; echo {}" | parallel -kj2 echo
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EOF
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# Make sure we got all the cpuburn killed
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killall "$basename" 2>/dev/null
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echo '### Test too slow spawning'
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# Let the commands below run during high load
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seq 1000 | timeout 20 parallel -j400% -N0 "$qcpuburn" 2>/dev/null &
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PID=$!
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seq 1 1000 | stdout nice nice parallel --halt 1 -uj0 -N0 kill $PID |
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perl -pe '/parallel: Warning: Starting \d+ processes took/ and do {close STDIN; `kill '$PID';killall "$basename"`; print "OK\n"; exit }';
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# Make sure we got all the cpuburn killed
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killall "$basename" 2>/dev/null
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rm "$cpuburn"
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