+sub _diffms
+{
+ return unless isdbg('chan');
+ my $call = shift;
+ my $line = shift;
+ my $ta = shift;
+ my $tb = shift || [gettimeofday];
+
+ my $a = int($ta->[0] * 1000) + int($ta->[1] / 1000);
+ my $b = int($tb->[0] * 1000) + int($tb->[1] / 1000);
+ my $msecs = $b - $a;
+
+ my $s = "forkcall stats: $call '$line' ";
+ $s .= "${msecs}mS";
+ dbg($s);
+}
+