plugin: add zfs_arc plugin

1 files changed, 103 insertions, 0 deletions

diff --git a/plugin/zfs_arc.php b/plugin/zfs_arc.php
new file mode 100644
index 0000000..4a2592b
--- /dev/null
+++ b/plugin/zfs_arc.php
@@ -0,0 +1,103 @@
+<?php
+# Collectd zfs_arc plugin
+
+require_once 'conf/common.inc.php';
+require_once 'type/Default.class.php';
+require_once 'inc/collectd.inc.php';
+
+## LAYOUT
+# zfs_arc/
+# zfs_arc/arc_counts-hits.rrd
+# zfs_arc/arc_counts-misses.rrd
+# zfs_arc/arc_l2_bytes.rrd
+# zfs_arc/arc_l2_size.rrd
+# zfs_arc/arc_ratio-L1.rrd
+# zfs_arc/arc_ratio-L2.rrd
+# zfs_arc/arc_size.rrd
+$obj = new Type_Default($CONFIG);
+$obj->width = $width;
+$obj->heigth = $heigth;
+switch($obj->args['type']) {
+        case 'arc_counts':
+                $obj->data_sources = array(
+                        'demand_data',
+                        'demand_metadata',
+                        'prefetch_data',
+                        'prefetch_metadata'
+                );
+                $obj->colors = array(
+                        'hits-demand_data' => 'ff0000',
+                        'misses-demand_data' => '880000',
+                        'hits-demand_metadata' => '00ff00',
+                        'misses-demand_metadata' => '00aa00',
+                        'hits-prefetch_data' => '0000ff',
+                        'misses-prefetch_data' => '00f0f0',
+                        'hits-prefetch_metadata' => 'ff00ff',
+                        'misses-prefetch_metadata' => '888800'
+                );
+                $obj->ds_names = array(
+                        'hits-demand_data' => 'data hits',
+                        'misses-demand_data' => 'metadata misses',
+                        'hits-demand_metadata' => 'metadata hits',
+                        'misses-demand_metadata' => 'metadata misses',
+                        'hits-prefetch_data' => 'prefetch data hits',
+                        'misses-prefetch_data' => 'prefetch data misses',
+                        'hits-prefetch_metadata' => 'prefetch metadata hits',
+                        'misses-prefetch_metadata' => 'prefetch metadata misses'
+                );
+                $obj->rrd_title = 'arc counts';
+                $obj->rrd_vertical = 'count';
+                $obj->rrd_format = '%5.1lf%s';
+                break;
+        case 'arc_size':
+                $obj->data_sources = array('current','target','minlimit','maxlimit');
+                $obj->order = array(
+                        'current',
+                        'target',
+                        'minlimit',
+                        'maxlimit'
+                );
+                $obj->rrd_title = 'Arc size';
+                $obj->rrd_vertical = 'bytes';
+                $obj->rrd_format = '%5.1lf%s';
+                break;
+        case 'arc_l2_bytes':
+                $obj->data_sources = array(
+                        'write',
+                        'read'
+                );
+                $obj->ds_names = array(
+                        'write'  => 'Write',
+                        'read'   => 'Read',
+                );
+                $obj->colors = array(
+                        'write'  => 'ff0000',
+                        'read' => '0000ff',
+                );
+                $obj->rrd_title = 'Arc L2 bytes';
+                $obj->rrd_vertical = 'bytes';
+                $obj->rrd_format = '%5.1lf%s';
+                break;
+        case 'arc_l2_size':
+                $obj->data_sources = array(
+                        'value'
+                );
+                $obj->ds_names = array(
+                        'value'   => 'Bytes'
+                );
+                $obj->colors = array(
+                        'value' => '0000ff',
+                );
+                $obj->rrd_title = 'Arc L2 size';
+                $obj->rrd_vertical = 'bytes';
+                $obj->rrd_format = '%5.1lf%s';
+                break;
+        case 'arc_ratio':
+                $obj->data_sources = array('value');
+                $obj->rrd_title = 'Arc ratio';
+                $obj->rrd_vertical = 'ratio';
+                $obj->rrd_format = '%5.1lf%s';
+                break;
+}
+collectd_flush($obj->identifiers);
+$obj->rrd_graph();