introduce config option datasize to show graphs in bits or bytes

Config setting $CONFIG['datasize'] can be set to bits or bytes to show graph
data in bits or bytes.

Inspired-by: Neptune Ning (Plan) <frostyplanet@gmail.com>

1 files changed, 4 insertions, 2 deletions

diff --git a/plugin/libvirt.php b/plugin/libvirt.php
index 829c592..971b5a7 100644
--- a/plugin/libvirt.php
+++ b/plugin/libvirt.php
@@ -30,7 +30,8 @@ switch($obj->args['type']) {
                         'write' => '00b000',
                 );
                 $obj->rrd_title = sprintf('Disk Traffic (%s)', $obj->args['tinstance']);
-                $obj->rrd_vertical = 'Bytes per second';
+                $obj->rrd_vertical = sprintf('%s per second', ucfirst($CONFIG['datasize']));
+                $obj->scale = $CONFIG['datasize'] == 'bits' ? 8 : 1;
                 $obj->rrd_format = '%5.1lf%s';
         break;
         case 'disk_ops':
@@ -84,7 +85,8 @@ switch($obj->args['type']) {
                         'tx' => '00b000',
                 );
                 $obj->rrd_title = sprintf('Interface Traffic (%s)', $obj->args['tinstance']);
-                $obj->rrd_vertical = 'Bytes per second';
+                $obj->rrd_vertical = sprintf('%s per second', ucfirst($CONFIG['datasize']));
+                $obj->scale = $CONFIG['datasize'] == 'bits' ? 8 : 1;
         break;
         case 'if_packets':
                 $obj->data_sources = array('rx', 'tx');