fix some ancient stats

accounts-db/src/accounts_db.rs

@@ -2041,7 +2041,7 @@ pub(crate) struct ShrinkAncientStats {
     pub(crate) random_shrink: AtomicU64,
     pub(crate) slots_considered: AtomicU64,
     pub(crate) ancient_scanned: AtomicU64,
-    pub(crate) second_pass_one_ref: AtomicU64,
+    pub(crate) bytes_ancient_created: AtomicU64,
 }
 
 #[derive(Debug, Default)]
@@ -2072,7 +2072,7 @@ impl ShrinkStatsSub {
 #[derive(Debug, Default)]
 pub struct ShrinkStats {
     last_report: AtomicInterval,
-    num_slots_shrunk: AtomicUsize,
+    pub(crate) num_slots_shrunk: AtomicUsize,
     storage_read_elapsed: AtomicU64,
     index_read_elapsed: AtomicU64,
     create_and_insert_store_elapsed: AtomicU64,
@@ -2346,8 +2346,8 @@ impl ShrinkAncientStats {
                 i64
             ),
             (
-                "second_pass_one_ref",
-                self.second_pass_one_ref.swap(0, Ordering::Relaxed) as i64,
+                "bytes_ancient_created",
+                self.bytes_ancient_created.swap(0, Ordering::Relaxed) as i64,
                 i64
             ),
         );
@@ -4204,14 +4204,20 @@ impl AccountsDb {
             );
         }
 
-        Self::update_shrink_stats(&self.shrink_stats, stats_sub);
+        Self::update_shrink_stats(&self.shrink_stats, stats_sub, true);
         self.shrink_stats.report();
     }
 
-    pub(crate) fn update_shrink_stats(shrink_stats: &ShrinkStats, stats_sub: ShrinkStatsSub) {
-        shrink_stats
-            .num_slots_shrunk
-            .fetch_add(1, Ordering::Relaxed);
+    pub(crate) fn update_shrink_stats(
+        shrink_stats: &ShrinkStats,
+        stats_sub: ShrinkStatsSub,
+        increment_count: bool,
+    ) {
+        if increment_count {
+            shrink_stats
+                .num_slots_shrunk
+                .fetch_add(1, Ordering::Relaxed);
+        }
         shrink_stats.create_and_insert_store_elapsed.fetch_add(
             stats_sub.create_and_insert_store_elapsed_us,
             Ordering::Relaxed,
@@ -4752,7 +4758,7 @@ impl AccountsDb {
         // we should not try to shrink any of the stores from this slot anymore. All shrinking for this slot is now handled by ancient append vec code.
         self.shrink_candidate_slots.lock().unwrap().remove(&slot);
 
-        Self::update_shrink_stats(&self.shrink_ancient_stats.shrink_stats, stats_sub);
+        Self::update_shrink_stats(&self.shrink_ancient_stats.shrink_stats, stats_sub, true);
     }
 
     /// each slot in 'dropped_roots' has been combined into an ancient append vec.

accounts-db/src/ancient_append_vecs.rs

@@ -266,7 +266,7 @@ impl AccountsDb {
             &mut stats_sub
         ));
 
-        Self::update_shrink_stats(&self.shrink_ancient_stats.shrink_stats, stats_sub);
+        Self::update_shrink_stats(&self.shrink_ancient_stats.shrink_stats, stats_sub, false);
         self.shrink_ancient_stats
             .total_us
             .fetch_add(total_us, Ordering::Relaxed);
@@ -516,6 +516,9 @@ impl AccountsDb {
         self.thread_pool_clean.install(|| {
             packer.par_iter().for_each(|(target_slot, pack)| {
                 let mut write_ancient_accounts_local = WriteAncientAccounts::default();
+                self.shrink_ancient_stats
+                    .bytes_ancient_created
+                    .fetch_add(pack.bytes, Ordering::Relaxed);
                 self.write_one_packed_storage(
                     pack,
                     **target_slot,
@@ -694,6 +697,13 @@ impl AccountsDb {
             INCLUDE_SLOT_IN_HASH_IRRELEVANT_APPEND_VEC_OPERATION,
         );
 
+        self.shrink_ancient_stats
+            .bytes_ancient_created
+            .fetch_add(packed.bytes, Ordering::Relaxed);
+        self.shrink_ancient_stats
+            .shrink_stats
+            .num_slots_shrunk
+            .fetch_add(1, Ordering::Relaxed);
         self.write_ancient_accounts(*bytes_total, accounts_to_write, write_ancient_accounts)
     }