+ require PublicInbox::LeiOverview;
+ PublicInbox::LeiOverview->new($self) or return;
+ my $opt = $self->{opt};
+ PublicInbox::OverIdx::fork_ok($opt);
+ my ($xj, $mj) = split(/,/, $opt->{jobs} // '');
+ (defined($xj) && $xj ne '' && $xj !~ /\A[1-9][0-9]*\z/) and
+ die "`$xj' search jobs must be >= 1\n";
+ my $lxs = $self->{lxs};
+ $xj ||= $lxs->concurrency($opt); # allow: "--jobs ,$WRITER_ONLY"
+ my $nproc = $lxs->detect_nproc || 1; # don't memoize, schedtool(1) exists
+ $xj = $nproc if $xj > $nproc;
+ $lxs->{-wq_nr_workers} = $xj;
+ (defined($mj) && $mj !~ /\A[1-9][0-9]*\z/) and
+ die "`$mj' writer jobs must be >= 1\n";
+ my $l2m = $self->{l2m};
+ # we use \1 (a ref) to distinguish between default vs. user-supplied
+ if ($l2m && grep { $opt->{$_} //= \1 } (qw(mail-sync import-remote
+ import-before))) {
+ $self->_lei_store(1)->write_prepare($self);
+ if ($opt->{'mail-sync'}) {
+ my $lms = $l2m->{-lms_rw} = $self->lms(1);
+ $lms->lms_write_prepare->lms_pause; # just create
+ }
+ }
+ $l2m and $l2m->{-wq_nr_workers} //= $mj // do {
+ # keep some CPU for git, and don't overload IMAP destinations
+ my $n = int($nproc * 0.75 + 0.5);
+ $self->{net} && $n > 4 ? 4 : $n;
+ };
+
+ # descending docid order is cheapest, MUA controls sorting order
+ $self->{mset_opt}->{relevance} //= -2 if $l2m || $opt->{threads};
+
+ my $tot = $self->{mset_opt}->{total} //= $self->{opt}->{limit} // 10000;
+ $self->{mset_opt}->{limit} = $tot > 10000 ? 10000 : $tot;
+ $self->{mset_opt}->{offset} //= 0;
+ $self->{mset_opt}->{threads} //= $opt->{threads};
+