garbage_collection: log deduplication factor

src/backup/datastore.rs

@@ -584,6 +584,14 @@ impl DataStore {
 
             crate::task_log!(worker, "On-Disk chunks: {}", gc_status.disk_chunks);
 
+            let deduplication_factor = if gc_status.disk_bytes > 0 {
+                (gc_status.index_data_bytes as f64)/(gc_status.disk_bytes as f64)
+            } else {
+                1.0
+            };
+
+            crate::task_log!(worker, "Deduplication factor: {:.2}", deduplication_factor);
+
             if gc_status.disk_chunks > 0 {
                 let avg_chunk = gc_status.disk_bytes/(gc_status.disk_chunks as u64);
                 crate::task_log!(worker, "Average chunk size: {}", HumanByte::from(avg_chunk));

src/server/email_notifications.rs

@@ -24,12 +24,15 @@ Removed garbage:     {{human-bytes status.removed-bytes}}
 Removed chunks:       {{status.removed-chunks}}
 Remove bad files:     {{status.removed-bad}}
 
+Bad files:            {{status.still-bad}}
 Pending removals:     {{human-bytes status.pending-bytes}} (in {{status.pending-chunks}} chunks)
 
 Original Data usage:  {{human-bytes status.index-data-bytes}}
 On Disk usage:        {{human-bytes status.disk-bytes}} ({{relative-percentage status.disk-bytes status.index-data-bytes}})
 On Disk chunks:       {{status.disk-chunks}}
 
+Deduplication Factor: {{deduplication-factor}}
+
 Garbage collection successful.
 
 "###;
@@ -120,10 +123,18 @@ pub fn send_gc_status(
 
     let text = match result {
         Ok(()) => {
+            let deduplication_factor = if status.disk_bytes > 0 {
+                (status.index_data_bytes as f64)/(status.disk_bytes as f64)
+            } else {
+                1.0
+            };
+
             let data = json!({
                 "status": status,
                 "datastore": datastore,
+                "deduplication-factor": format!("{:.2}", deduplication_factor),
             });
+
             HANDLEBARS.render("gc_ok_template", &data)?
         }
         Err(err) => {