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parallel: Removed memleak.
This commit is contained in:
Ole Tange
parent
e94774df14
commit
fd6abf1f9a
54
src/parallel
54
src/parallel
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@ -3502,12 +3502,17 @@ sub reaper {
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# @pids_reaped = PIDs of children finished
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my $stiff;
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my @pids_reaped;
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my $children_reaped = 0;
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debug("run", "Reaper ");
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# For efficiency surround with BEGIN/COMMIT when using $opt::sqlmaster
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$opt::sqlmaster and $Global::sql->run("BEGIN;");
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while (($stiff = waitpid(-1, &WNOHANG)) > 0) {
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# $stiff = pid of dead process
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push(@pids_reaped,$stiff);
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if(wantarray) {
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push(@pids_reaped,$stiff);
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} else {
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$children_reaped++;
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}
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if($Global::sshmaster{$stiff}) {
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# This is one of the ssh -M: ignore
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next;
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@ -3565,7 +3570,7 @@ sub reaper {
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}
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$opt::sqlmaster and $Global::sql->run("COMMIT;");
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debug("run", "done ");
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return @pids_reaped;
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return wantarray ? @pids_reaped : $children_reaped;
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}
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sub __USAGE__ {}
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@ -5313,18 +5318,20 @@ sub compute_number_of_processes {
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if($system_limit < $wanted_processes) {
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# The system_limit is less than the wanted_processes
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if($system_limit < 1 and not $Global::JobQueue->empty()) {
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::warning("Cannot spawn any jobs. Raising ulimit -u or /etc/security/limits.conf",
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::warning("Cannot spawn any jobs. ".
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"Raising ulimit -u or /etc/security/limits.conf",
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"or /proc/sys/kernel/pid_max may help.");
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::wait_and_exit(255);
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}
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if(not $more_filehandles) {
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::warning("Only enough file handles to run ". $system_limit. " jobs in parallel.",
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"Running 'parallel -j0 -N $system_limit --pipe parallel -j0' or ",
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::warning("Only enough file handles to run ".
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$system_limit. " jobs in parallel.",
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"Running 'parallel -j0 -N $system_limit --pipe parallel -j0' or",
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"raising ulimit -n or /etc/security/limits.conf may help.");
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}
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if($max_system_proc_reached) {
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::warning("Only enough available processes to run ". $system_limit.
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" jobs in parallel.",
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::warning("Only enough available processes to run ".
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$system_limit. " jobs in parallel.",
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"Raising ulimit -u or /etc/security/limits.conf ",
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"or /proc/sys/kernel/pid_max may help.");
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}
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@ -8484,25 +8491,21 @@ sub set_seq {
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$self->{'seq'} = shift;
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}
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{
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my $max_slot_number;
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sub slot {
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# Find the number of a free job slot and return it
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# Uses:
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# @Global::slots - list with free jobslots
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# Returns:
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# $jobslot = number of jobslot
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my $self = shift;
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if(not $self->{'slot'}) {
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if(not @Global::slots) {
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# $max_slot_number will typically be $Global::max_jobs_running
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push @Global::slots, ++$Global::max_slot_number;
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}
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$self->{'slot'} = shift @Global::slots;
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sub slot {
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# Find the number of a free job slot and return it
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# Uses:
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# @Global::slots - list with free jobslots
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# Returns:
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# $jobslot = number of jobslot
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my $self = shift;
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if(not $self->{'slot'}) {
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if(not @Global::slots) {
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# $max_slot_number will typically be $Global::max_jobs_running
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push @Global::slots, ++$Global::max_slot_number;
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}
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return $self->{'slot'};
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$self->{'slot'} = shift @Global::slots;
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}
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return $self->{'slot'};
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}
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sub populate {
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@ -10622,4 +10625,5 @@ sub unlock {
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# Keep perl -w happy
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$opt::x = $Semaphore::timeout = $Semaphore::wait =
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$Job::file_descriptor_warning_printed = $Global::envdef = @Arg::arg;
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$Job::file_descriptor_warning_printed = $Global::envdef = @Arg::arg =
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$Global::max_slot_number;
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@ -28,5 +28,51 @@ par_over_4GB() {
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nice md5sum
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}
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measure() {
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# Input:
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# $1 = iterations
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# $2 = sleep 1 sec for every $2
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seq $1 |
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stdout time -v parallel -u sleep '{= $_=$_%'$2'?0:1 =}' |
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grep Maximum | field 6;
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}
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export -f measure
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no_mem_leak() {
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# Return false if leaking
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max1000=$(parallel measure {} 100000 ::: 1000 1000 1000 1000 |
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sort -n | tail -n 1)
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min30000=$(parallel measure {} 100000 ::: 30000 30000 30000 30000 |
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sort -n | head -n 1)
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if [ $max1000 -gt $min30000 ] ; then
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max1000=$(parallel measure {} 100 ::: 1000 1000 1000 1000 |
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sort -n | tail -n 1)
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min30000=$(parallel measure {} 100 ::: 30000 30000 30000 30000 |
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sort -n | head -n 1)
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if [ $max1000 -gt $min30000 ] ; then
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echo $max1000 -gt $min30000 = no leak
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return 0
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else
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echo not $max1000 -gt $min30000 = possible leak
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return 1
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fi
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else
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echo not $max1000 -gt $min30000 = possible leak
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return 1
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fi
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}
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export -f no_mem_leak
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par_mem_leak() {
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echo "### test for mem leak"
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if no_mem_leak >/dev/null ; then
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echo no mem leak detected
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else
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echo possible mem leak;
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fi
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}
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export -f $(compgen -A function | grep par_)
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compgen -A function | grep par_ | sort | parallel -vj0 -k --tag --joblog /tmp/jl-`basename $0` '{} 2>&1'
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@ -1,7 +1,10 @@
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par_mem_leak 2>&1
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par_mem_leak ### test for mem leak
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par_mem_leak no mem leak detected
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par_outside_file_handle_limit 2>&1
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par_outside_file_handle_limit ### Test Force outside the file handle limit, 2009-02-17 Gave fork error
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par_outside_file_handle_limit parallel: Warning: Only enough file handles to run 252 jobs in parallel.
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par_outside_file_handle_limit parallel: Warning: Running 'parallel -j0 -N 252 --pipe parallel -j0' or
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par_outside_file_handle_limit parallel: Warning: Only enough file handles to run 251 jobs in parallel.
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par_outside_file_handle_limit parallel: Warning: Running 'parallel -j0 -N 251 --pipe parallel -j0' or
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par_outside_file_handle_limit parallel: Warning: raising ulimit -n or /etc/security/limits.conf may help.
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par_outside_file_handle_limit Start
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par_outside_file_handle_limit end
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@ -1,7 +1,7 @@
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echo '### bug #46214: Using --pipepart doesnt spawn multiple jobs in version 20150922'
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### bug #46214: Using --pipepart doesnt spawn multiple jobs in version 20150922
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seq 1000000 > /tmp/num1000000; stdout parallel --pipepart --progress -a /tmp/num1000000 --block 10k -j0 true |grep 1:local
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1:local / 8 / 252
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1:local / 8 / 251
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echo '**'
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**
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testhalt() { echo '### testhalt --halt '$1; (yes 0 | head -n 10; seq 10) | stdout parallel -kj4 --halt $1 'sleep {= $_=$_*0.3+1 =}; exit {}'; echo $?; (seq 10; yes 0 | head -n 10) | stdout parallel -kj4 --halt $1 'sleep {= $_=$_*0.3+1 =}; exit {}'; echo $?; }; export -f testhalt; parallel -kj0 testhalt ::: now,fail=0 now,fail=1 now,fail=2 now,fail=30% now,fail=70% soon,fail=0 soon,fail=1 soon,fail=2 soon,fail=30% soon,fail=70% now,success=0 now,success=1 now,success=2 now,success=30% now,success=70% soon,success=0 soon,success=1 soon,success=2 soon,success=30% now,success=70%
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@ -338,7 +338,7 @@ bug #38439: "open files" with --files --pipe blocks after a while
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20 of 21
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21 of 21
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parallel: Warning: Only enough file handles to run 1 jobs in parallel.
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parallel: Warning: Running 'parallel -j0 -N 1 --pipe parallel -j0' or
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parallel: Warning: Running 'parallel -j0 -N 1 --pipe parallel -j0' or
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parallel: Warning: raising ulimit -n or /etc/security/limits.conf may help.
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echo 'bug #34241: --pipe should not spawn unneeded processes - part 2'
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bug #34241: --pipe should not spawn unneeded processes - part 2
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