mirror of
https://git.savannah.gnu.org/git/parallel.git
synced 2024-11-26 16:07:54 +00:00
40 lines
1.4 KiB
Bash
40 lines
1.4 KiB
Bash
#!/bin/bash
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highload ()
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{
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# Force load > #cpus
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CPUS=$(parallel --number-of-cores)
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seq 0 0.1 $CPUS | parallel -j0 timeout 50 burnP6 2>/dev/null &
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PID=$!
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sleep 20
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perl -e 'do{$a=`uptime`} while($a=~/average: *(\S+)/ and $1 < '$CPUS')'
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# Load is now > $CPUS
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# Kill off burnP6 and the parent parallel
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# kill $PID; sleep 0.1; kill $PID; killall burnP6; sleep 0.3; kill -9 $PID 2>/dev/null
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}
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highload 2>/dev/null &
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sleep 1
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cat <<'EOF' | parallel -j0 -k -L1
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echo "bug #38441: CPU usage goes to 100% if load is higher than --load at first job"
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/usr/bin/time -f %e parallel --load 100% true ::: a 2>&1 |
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perl -ne '$_ > 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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echo '### Test too slow spawning - TODO THIS CURRENTLY DOES NOT OVERLOAD'
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# Let the commands below run during high load
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seq `parallel --number-of-cores` | parallel -j200% -N0 timeout -k 25 26 burnP6 &
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sleep 1;
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seq 1 1000 | stdout nice nice parallel -s 100 -uj0 true |
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perl -pe '/parallel: Warning: Starting \d+ processes took/ and do {close STDIN; `killall -9 burnP6`; print "OK\n"; exit }'
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EOF
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# Make sure we got all the burnP6 killed
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killall -9 burnP6 2>/dev/null
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