diff --git a/src/database/mod.rs b/src/database/mod.rs
index 32ca4ca14..d34a288ca 100644
--- a/src/database/mod.rs
+++ b/src/database/mod.rs
@@ -39,10 +39,18 @@ where D: Deref<Target=DB>
 fn retrieve_data_index<D>(snapshot: &Snapshot<D>) -> Result<Index, Box<Error>>
 where D: Deref<Target=DB>
 {
-    let index = match snapshot.get(DATA_INDEX)? {
+    let (elapsed, vector) = elapsed::measure_time(|| snapshot.get(DATA_INDEX));
+    info!("loading index from kv-store took {}", elapsed);
+
+    let index = match vector? {
         Some(vector) => {
             let bytes = vector.as_ref().to_vec();
-            Index::from_bytes(bytes)?
+            info!("index size if {} MiB", bytes.len() / 1024 / 1024);
+
+            let (elapsed, index) = elapsed::measure_time(|| Index::from_bytes(bytes));
+            info!("loading index from bytes took {}", elapsed);
+            index?
+
         },
         None => Index::default(),
     };
diff --git a/src/rank/query_builder.rs b/src/rank/query_builder.rs
index 3710f1971..b38a1dae8 100644
--- a/src/rank/query_builder.rs
+++ b/src/rank/query_builder.rs
@@ -162,7 +162,6 @@ where D: Deref<Target=DB>,
                 let (elapsed, ()) = elapsed::measure_time(|| {
                     group.sort_unstable_by(|a, b| criterion.evaluate(a, b, view));
                 });
-
                 info!("criterion {} sort took {}", ci, elapsed);
 
                 for group in BinaryGroupByMut::new(group, |a, b| criterion.eq(a, b, view)) {