Add snapshot hash of full accounts state (#8295)

* Add snapshot hash of full accounts state

* Use normal hashing for the accounts delta state

* Add merkle

runtime/benches/accounts.rs

@@ -72,5 +72,29 @@ fn test_accounts_hash_bank_hash(bencher: &mut Bencher) {
     let mut pubkeys: Vec<Pubkey> = vec![];
     create_test_accounts(&accounts, &mut pubkeys, 60000, 0);
     let ancestors = vec![(0, 0)].into_iter().collect();
+    accounts.accounts_db.update_accounts_hash(0, &ancestors);
     bencher.iter(|| assert!(accounts.verify_bank_hash(0, &ancestors)));
 }
+
+#[bench]
+fn test_update_accounts_hash(bencher: &mut Bencher) {
+    solana_logger::setup();
+    let accounts = Accounts::new(vec![PathBuf::from("update_accounts_hash")]);
+    let mut pubkeys: Vec<Pubkey> = vec![];
+    create_test_accounts(&accounts, &mut pubkeys, 50_000, 0);
+    let ancestors = vec![(0, 0)].into_iter().collect();
+    bencher.iter(|| {
+        accounts.accounts_db.update_accounts_hash(0, &ancestors);
+    });
+}
+
+#[bench]
+fn test_accounts_delta_hash(bencher: &mut Bencher) {
+    solana_logger::setup();
+    let accounts = Accounts::new(vec![PathBuf::from("accounts_delta_hash")]);
+    let mut pubkeys: Vec<Pubkey> = vec![];
+    create_test_accounts(&accounts, &mut pubkeys, 100_000, 0);
+    bencher.iter(|| {
+        accounts.accounts_db.get_accounts_delta_hash(0);
+    });
+}