diff --git a/Hostctl.pm b/Hostctl.pm
index af74e9c..6fadd05 100644
--- a/Hostctl.pm
+++ b/Hostctl.pm
@@ -102,7 +102,7 @@ sub collect_version {
 	my $version = "version-$host.txt";
 	logeval { logcmd({
 	    cmd => ['ssh', "$user\@$host", 'sysctl',
-		'kern.version', 'hw.machine', 'hw.ncpu'],
+		'kern.version', 'hw.machine', 'hw.ncpu', 'hw.ncpuonline'],
 	    outfile => $version,
 	})};
 	if ($@) {
diff --git a/Html.pm b/Html.pm
index 933e5f1..403d414 100644
--- a/Html.pm
+++ b/Html.pm
@@ -312,6 +312,8 @@ sub parse_version_file {
 	}
 	/^hw.machine=(\w+)$/ and $v{arch} = $1;
 	/^hw.ncpu=(\w+)$/ and $v{ncpu} = $1;
+	# override if more specific value exists
+	/^hw.ncpuonline=(\w+)$/ and $v{ncpu} = $1;
     }
     return %v;
 }
diff --git a/netlink-html.pl b/netlink-html.pl
index 00cbba4..65b055f 100755
--- a/netlink-html.pl
+++ b/netlink-html.pl
@@ -119,10 +119,13 @@ sub list_dates {
 
 sub html_hier_top {
     my ($html, $date, @cvsdates) = @_;
-    my $setup = $D{$date}{setup};
+    my $dv = $D{$date};
+    my $setup = $dv->{setup};
     my $link = uri_escape($setup, "^A-Za-z0-9\-\._~/");
     my $href = $setup ? "<a href=\"../$link\">" : "";
     my $enda = $href ? "</a>" : "";
+    my $hostname = $dv->{host};
+    my $ncpu = $dv->{ncpu};
     print $html <<"HEADER";
 <table>
   <tr>
@@ -134,7 +137,11 @@ sub html_hier_top {
     <td><a href="../$date/netlink.html">$date</a></td>
   </tr>
   <tr>
-    <th>setup</th>
+    <th>test host with cpu cores</th>
+    <td>$hostname/$ncpu</td>
+  </tr>
+  <tr>
+    <th>machine setup</th>
     <td>${href}info$enda</td>
   </tr>
 </table>