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https://git.savannah.gnu.org/git/parallel.git
synced 2024-12-22 20:57:53 +00:00
niceload: Fixed --battery.
niceload: Implemented --net/--nethops.
This commit is contained in:
Ole Tange
parent
f8d1474943
commit
9d9016b88f
184
src/niceload
184
src/niceload
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@ -85,12 +85,16 @@ if(@opt::prg) {
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} elsif(@substr_name_pids) {
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warning("@opt::prg no exact matches. Using substrings.");
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my %name_pids;
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for(@substr_name_pids) {
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for(sort @substr_name_pids) {
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# If the process has run for long, then time column will
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# enter the name, so remove leading digits
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$name_of->{$_} =~ s/^\d+ //;
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# Remove arguments
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$name_of->{$_} =~ s/ .*//;
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push @{$name_pids{$name_of->{$_}}},$_;
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}
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warning("Niceloading",
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map { "$_ (".(join",",@{$name_pids{$_}}).")" } keys %name_pids
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map { "$_ (".(join" ",sort @{$name_pids{$_}}).")" } keys %name_pids
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);
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@pids = @substr_name_pids;
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} else {
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@ -292,8 +296,9 @@ sub get_options_from_array {
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"rn|runnoswap|run-noswap|run-no-swap" => \$opt::run_noswap,
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"noswap|N" => \$opt::noswap,
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# niceload -l -1 --sensor 'cat /sys/class/power_supply/BAT0/status /proc/acpi/battery/BAT0/state 2>/dev/null |grep -i -q discharging; echo $?'
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"battery|B" => \$opt::battery,
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"net" => \$opt::net,
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"nethops=i" => \$opt::nethops,
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"nice|n=i" => \$opt::nice,
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"program|prg=s" => \@opt::prg,
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@ -305,6 +310,24 @@ sub get_options_from_array {
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"verbose|v" => \$opt::verbose,
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"version|V" => \$opt::version,
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);
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if($opt::battery) {
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# niceload -l -1 --sensor \
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# 'cat /sys/class/power_supply/BAT0/status \
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# /proc/acpi/battery/BAT0/state 2>/dev/null |
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# grep -i -q discharging; echo $?'
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$opt::sensor = ('cat /sys/class/power_supply/BAT0/status '.
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'/proc/acpi/battery/BAT0/state 2>/dev/null | '.
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'grep -i -q discharging; echo $?');
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$opt::load = -1;
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}
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if($opt::net) {
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$opt::nethops ||= 2;
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}
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if($opt::nethops) {
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# niceload -l 0.01 --sensor 'netsensor_script'
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$opt::sensor = netsensor_script($opt::nethops);
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$opt::load ||= 0.01;
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}
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if(not $this_is_ARGV) {
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@{$array_ref} = @::ARGV;
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@::ARGV = @save_argv;
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@ -312,6 +335,28 @@ sub get_options_from_array {
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return @retval;
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}
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sub shell_quote_scalar {
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# Quote for other shells
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my $a = $_[0];
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if(defined $a) {
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# zsh wants '=' quoted
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# Solaris sh wants ^ quoted.
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# $a =~ s/([\002-\011\013-\032\\\#\?\`\(\)\{\}\[\]\^\*\>\<\~\|\; \"\!\$\&\'\202-\377])/\\$1/g;
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# This is 1% faster than the above
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if(($a =~ s/[\002-\011\013-\032\\\#\?\`\(\)\{\}\[\]\^\*\<\=\>\~\|\; \"\!\$\&\'\202-\377]/\\$&/go)
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+
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# quote newline as '\n'
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($a =~ s/[\n]/'\n'/go)) {
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# A string was replaced
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# No need to test for "" or \0
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} elsif($a eq "") {
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$a = "''";
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} elsif($a eq "\0") {
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$a = "";
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}
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}
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return $a;
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}
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sub die_usage {
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help();
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@ -343,15 +388,38 @@ sub die_bug {
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exit(255);
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}
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sub now {
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# Returns time since epoch as in seconds with 3 decimals
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# Uses:
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# @Global::use
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# Returns:
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# $time = time now with millisecond accuracy
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if(not $Global::use{"Time::HiRes"}) {
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if(eval "use Time::HiRes qw ( time );") {
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eval "sub TimeHiRestime { return Time::HiRes::time };";
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} else {
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eval "sub TimeHiRestime { return time() };";
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}
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$Global::use{"Time::HiRes"} = 1;
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}
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return (int(TimeHiRestime()*1000))/1000;
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}
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sub usleep {
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# Sleep this many milliseconds.
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my $ms = shift;
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::debug("Sleeping ",$ms," millisecs\n");
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select(undef, undef, undef, $ms/1000);
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my $start = now();
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my $now;
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do {
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# Something makes 'select' wake up too early
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# when using --sensor
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select(undef, undef, undef, $ms/1000);
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$now = now();
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} while($now < $start + $ms/1000);
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}
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sub debug {
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if($opt::debug) {
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print STDERR @_;
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@ -424,6 +492,97 @@ sub min {
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return $min;
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}
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sub netsensor_script {
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# Script for --sensor when using --net
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my $hops = shift;
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my $perlscript = q{
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use Net::Traceroute;
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use Net::Ping;
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my $medtrc = MedianTraceroute->new(shift);
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$medtrc->ping();
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$medtrc->ping();
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while(1) {
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my $ms = $medtrc->ping();
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my $m = $medtrc->remedian();
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# printf("%.2f %.2f med*1.5 %f\n",$m*1000,$ms*1000,$m*1.5 < $ms);
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# 1 = median*1.5 < current latency
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# 0 = median*1.5 > current latency
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printf("%d\n",$m*1.5 < $ms);
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sleep(1);
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}
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package MedianTraceroute;
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sub new {
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my $class = shift;
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my $hop = shift;
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# Find router
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my $tr = Net::Traceroute->new(host => "8.8.8.8",
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max_ttl => $hop);
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if($tr->found) {
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$host = $tr->hop_query_host($hop, 0);
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} else {
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# ns1.censurfridns.dk
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$tr = Net::Traceroute->new(host => "89.233.43.71",
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max_ttl => $hop);
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if($tr->found) {
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$host = $tr->hop_query_host($hop, 0);
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} else {
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die("Cannot traceroute to 8.8.8.8 and 89.233.43.71");
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}
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}
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my $p = Net::Ping->new("external");
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$p->hires();
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return bless {
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'hop' => $hop,
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'host' => $host,
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'pinger' => $p,
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'remedian_idx' => 0,
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'remedian_arr' => [],
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'remedian' => undef,
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}, ref($class) || $class;
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}
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sub ping {
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my $self = shift;
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for(1..3) {
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# Ping should never take longer than 5.5 sec
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my ($ret, $duration, $ip) =
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$self->{'pinger'}->ping($self->{'host'}, 5.5);
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if($ret) {
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$self->set_remedian($duration);
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return $duration;
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}
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}
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warn("Ping failed 3 times.");
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}
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sub remedian {
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my $self = shift;
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return $self->{'remedian'};
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}
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sub set_remedian {
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# Set median of the last 999^3 (=997002999) values using Remedian
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#
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# Rousseeuw, Peter J., and Gilbert W. Bassett Jr. "The remedian: A
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# robust averaging method for large data sets." Journal of the
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# American Statistical Association 85.409 (1990): 97-104.
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my $self = shift;
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my $val = shift;
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my $i = $self->{'remedian_idx'}++;
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my $rref = $self->{'remedian_arr'};
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$rref->[0][$i%999] = $val;
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$rref->[1][$i/999%999] = (sort @{$rref->[0]})[$#{$rref->[0]}/2];
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$rref->[2][$i/999/999%999] = (sort @{$rref->[1]})[$#{$rref->[1]}/2];
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$self->{'remedian'} = (sort @{$rref->[2]})[$#{$rref->[2]}/2];
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}
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};
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return "perl -e ".shell_quote_scalar($perlscript)." $hops";
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}
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package Process;
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@ -768,11 +927,13 @@ sub nonblockGetLines {
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sub read_sensor {
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my $self = shift;
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::debug("read_sensor");
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::debug("read_sensor: ");
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my $fh = $self->{'sensor_fh'};
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if(not $fh) {
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# Start the sensor
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open($fh, "-|", $opt::sensor) || ::die_bug("Cannot open: $opt::sensor");
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$self->{'sensor_pid'} =
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open($fh, "-|", $opt::sensor) ||
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::die_bug("Cannot open: $opt::sensor");
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$self->{'sensor_fh'} = $fh;
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}
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# Read as much as we can (non_block)
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@ -781,14 +942,17 @@ sub read_sensor {
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# new load = last full line
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foreach my $line (@lines) {
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if(defined $line) {
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::debug("Pipe saw: $eof [$line]\n");
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::debug("Pipe saw: [$line] eof=$eof\n");
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$Global::last_sensor_reading = $line;
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}
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}
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if($eof) {
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# End of file => Restart the sensor
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close $fh;
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open($fh, "-|", $opt::sensor) || ::die_bug("Cannot open: $opt::sensor");
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# waitpid($self->{'sensor_pid'},0);
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$self->{'sensor_pid'} =
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open($fh, "-|", $opt::sensor) ||
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::die_bug("Cannot open: $opt::sensor");
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$self->{'sensor_fh'} = $fh;
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}
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@ -991,4 +1155,4 @@ sub io_status_darwin {
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return ::min($io, 10);
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}
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$::exitsignal = $::exitstatus = $opt::battery = 0; # Dummy
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$::exitsignal = $::exitstatus = 0; # Dummy
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@ -32,11 +32,11 @@ run 1 second, suspend (3.00-1.00) seconds, run 1 second, suspend
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=over 9
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=item B<-B>
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=item B<-B> (alpha testing)
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=item B<--battery>
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=item B<--battery> (alpha testing)
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Suspend if the system is running on battery. Short hand for: -l -1 --sensor 'cat /sys/class/power_supply/BAT0/status /proc/acpi/battery/BAT0/state 2>/dev/null |grep -i -q discharging; echo $?'
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Suspend if the system is running on battery. Shorthand for: -l -1 --sensor 'cat /sys/class/power_supply/BAT0/status /proc/acpi/battery/BAT0/state 2>/dev/null |grep -i -q discharging; echo $?'
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=item B<-f> I<FACTOR>
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@ -102,6 +102,29 @@ B<--noswap> is over limit if the system is swapping both in and out.
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B<--noswap> will set both B<--start-noswap> and B<run-noswap>.
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=item B<--net> (alpha testing)
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Shorthand for B<--nethops 2>.
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=item B<--nethops> I<h> (alpha testing)
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Network nice. Pause if the internet connection is overloaded.
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B<niceload> finds a router I<h> hops closer to the internet. It
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B<ping>s this every second. If the latency is more than 50% bigger
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than the median, it is regarded as being over the limit.
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B<--nethops> can be combined with B<--hard>. Without B<--hard> the
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program may be able to queue up so much traffic that it will take
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longer than the B<--suspend> time to clear it. B<--hard> is useful for
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traffic that does not break by being suspended for a longer time.
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B<--nethops> can be combined with a high B<--suspend>. This way a
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program can be allowed to do a bit of traffic now and then. This is
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useful to keep the connection alive.
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=item B<-n> I<niceness>
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=item B<--nice> I<niceness>
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@ -7566,7 +7566,7 @@ sub start {
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open ERR, '>&', $stderr_fh or ::die_bug("Can't dup STDERR: $!");
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$pid = ::open3("<&IN", ">&OUT", ">&ERR",
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"exec $Global::shell -c ".
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::shell_quote_scalar_default($command)) ||
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::shell_quote_scalar($command)) ||
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::die_bug("open3-/dev/tty");
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$Global::tty_taken = $pid;
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close $devtty_fh;
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@ -2,12 +2,12 @@ testsuite: 3
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true
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3: ../src/parallel tests-to-run/* wanted-results/* startdb prereqlocal prereqremote
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TRIES=3 time bash Start.sh - mem || true
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TRIES=3 time bash Start.sh '' mem || true
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touch ~/.parallel/will-cite
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make stopvm
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1: ../src/parallel tests-to-run/* wanted-results/* prereqlocal startdb prereqremote
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TRIES=1 time bash Start.sh - 'mem|polarhome' || true
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TRIES=1 time bash Start.sh '' 'mem|polarhome' || true
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touch ~/.parallel/will-cite
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make stopvm
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@ -19,5 +19,5 @@ echo '### multiple -p'
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/tmp/mysleep 2 &
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/tmp/mysleep 2 &
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echo '### --prg'
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stdout /usr/bin/time -f %e niceload -l 8 -H --prg mysleep | perl -ne '$_ > 5 and print "--prg OK\n"'
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stdout /usr/bin/time -f %e niceload -l 8 -H --prg /tmp/mysleep | perl -ne '$_ > 5 and print "--prg OK\n"'
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rm /tmp/mysleep
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