parallel/testsuite/tests-to-run/parallel-local2.sh

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#!/bin/bash
highload ()
{
# Force load > #cpus
CPUS=$(parallel --number-of-cores)
seq 0 0.1 $CPUS | nice nice parallel -j0 timeout 50 burnP6 2>/dev/null &
perl -e 'do{$a=`uptime`} while($a=~/average: *(\S+)/ and $1 < '$CPUS')'
# Load is now > $CPUS
# Kill off burnP6 and the parent parallel
kill %1; sleep 0.1; kill %1; killall burnP6; sleep 0.3; kill -9 %1 2>/dev/null
}
highload 2>/dev/null
cat <<'EOF' | parallel -j0 -k -L1
echo "bug #38441: CPU usage goes to 100% if load is higher than --load at first job"
/usr/bin/time -f %e parallel --load 100% true ::: a 2>&1 |
perl -ne '$_ > 1 and print "More than 1 secs wall clock: OK\n"'
/usr/bin/time -f %U parallel --load 100% true ::: a 2>&1 |
perl -ne '$_ < 1 and print "Less than 1 secs user time: OK\n"'
echo '### Test slow arguments generation - https://savannah.gnu.org/bugs/?32834'
seq 1 3 | parallel -j1 "sleep 2; echo {}" | parallel -kj2 echo
echo '### Test too slow spawning'
# Let the commands below run during high load
seq `parallel --number-of-cores` | parallel -j200% -N0 timeout -k 25 26 burnP6 &
sleep 1;
seq 1 1000 | stdout nice nice parallel -s 100 -uj0 true |
perl -pe '/parallel: Warning: Starting \d+ processes took/ and do {close STDIN; `killall -9 burnP6`; print "OK\n"; exit }'
EOF
# Make sure we got all the burnP6 killed
killall -9 burnP6 2>/dev/null