diff --git a/cloud/src/common/bvars.cpp b/cloud/src/common/bvars.cpp
index 0e595aff50abb9..773acde508bf0a 100644
--- a/cloud/src/common/bvars.cpp
+++ b/cloud/src/common/bvars.cpp
@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-#include "common/bvars.h"
+#include "bvars.h"
 
 #include <bvar/multi_dimension.h>
 #include <bvar/reducer.h>
@@ -25,6 +25,8 @@
 #include <cstdint>
 #include <stdexcept>
 
+#include "common/bvars.h"
+
 // clang-format off
 
 // meta-service's bvars
@@ -91,6 +93,8 @@ BvarLatencyRecorderWithTag g_bvar_ms_get_cluster_status("ms", "get_cluster_statu
 BvarLatencyRecorderWithTag g_bvar_ms_set_cluster_status("ms", "set_cluster_status");
 BvarLatencyRecorderWithTag g_bvar_ms_check_kv("ms", "check_kv");
 BvarLatencyRecorderWithTag g_bvar_ms_get_schema_dict("ms", "get_schema_dict");
+BvarAdderWithTag<int64_t> g_bvar_ms_get_delete_bitmap_bytes("ms", "get_delete_bitmap_bytes");
+BvarAdderWithTag<int64_t> g_bvar_ms_update_delete_bitmap_bytes("ms", "update_delete_bitmap_bytes");
 bvar::Adder<int64_t> g_bvar_update_delete_bitmap_fail_counter;
 bvar::Window<bvar::Adder<int64_t> > g_bvar_update_delete_bitmap_fail_counter_minute("ms", "update_delete_bitmap_fail", &g_bvar_update_delete_bitmap_fail_counter, 60);
 bvar::Adder<int64_t> g_bvar_get_delete_bitmap_fail_counter;
diff --git a/cloud/src/common/bvars.h b/cloud/src/common/bvars.h
index 5534567091116e..e299743671c6aa 100644
--- a/cloud/src/common/bvars.h
+++ b/cloud/src/common/bvars.h
@@ -38,8 +38,10 @@
  * ${module}_${name}_${tag}
  * where `tag` is added automatically when calling `get` or `put`
  */
-template <typename Bvar, bool is_status = false>
+template <typename Bvar, bool is_status = false, bool is_adder = false>
 class BvarWithTag {
+    static_assert(!(is_status && is_adder), "is_status and is_adder cannot both be true");
+
 public:
     BvarWithTag(std::string module, std::string name)
             : module_(std::move(module)), name_(std::move(name)) {}
@@ -52,14 +54,18 @@ class BvarWithTag {
             std::lock_guard<bthread::Mutex> l(mutex_);
             auto it = bvar_map_.find(tag);
             if (it == bvar_map_.end()) {
-                instance = std::make_shared<Bvar>(module_, name_ + "_" + tag, ValType());
+                if constexpr (is_adder) {
+                    instance = std::make_shared<Bvar>(module_, name_ + "_" + tag);
+                } else {
+                    instance = std::make_shared<Bvar>(module_, name_ + "_" + tag, ValType());
+                }
                 bvar_map_[tag] = instance;
             } else {
                 instance = it->second;
             }
         }
         // FIXME(gavin): check bvar::Adder and more
-        if constexpr (std::is_same_v<Bvar, bvar::LatencyRecorder>) {
+        if constexpr (std::is_same_v<Bvar, bvar::LatencyRecorder> || is_adder) {
             (*instance) << value;
         } else if constexpr (is_status) {
             instance->set_value(value);
@@ -98,6 +104,10 @@ class BvarWithTag {
 
 using BvarLatencyRecorderWithTag = BvarWithTag<bvar::LatencyRecorder>;
 
+template <typename T>
+    requires std::is_integral_v<T>
+using BvarAdderWithTag = BvarWithTag<bvar::Adder<T>>;
+
 template <typename T>
     requires std::is_integral_v<T>
 using BvarStatusWithTag = BvarWithTag<bvar::Status<T>, true>;
@@ -255,6 +265,8 @@ extern BvarLatencyRecorderWithTag g_bvar_ms_check_kv;
 extern BvarLatencyRecorderWithTag g_bvar_ms_get_schema_dict;
 extern bvar::Adder<int64_t> g_bvar_update_delete_bitmap_fail_counter;
 extern bvar::Adder<int64_t> g_bvar_get_delete_bitmap_fail_counter;
+extern BvarAdderWithTag<int64_t> g_bvar_ms_get_delete_bitmap_bytes;
+extern BvarAdderWithTag<int64_t> g_bvar_ms_update_delete_bitmap_bytes;
 
 // recycler's bvars
 extern BvarStatusWithTag<int64_t> g_bvar_recycler_recycle_index_earlest_ts;
diff --git a/cloud/src/meta-service/meta_service.cpp b/cloud/src/meta-service/meta_service.cpp
index 8d3dbd82eb74c1..9a9ee64b4bf088 100644
--- a/cloud/src/meta-service/meta_service.cpp
+++ b/cloud/src/meta-service/meta_service.cpp
@@ -47,6 +47,7 @@
 #include <unordered_map>
 #include <utility>
 
+#include "../common/bvars.h"
 #include "common/bvars.h"
 #include "common/config.h"
 #include "common/encryption_util.h"
@@ -2375,6 +2376,7 @@ void MetaServiceImpl::update_delete_bitmap(google::protobuf::RpcController* cont
                    << " txn_size=" << txn->approximate_bytes();
                 msg = ss.str();
                 g_bvar_update_delete_bitmap_fail_counter << 1;
+                g_bvar_ms_update_delete_bitmap_bytes.put(instance_id, total_txn_put_bytes);
                 return;
             }
             stats.get_bytes += txn->get_bytes();
@@ -2389,6 +2391,7 @@ void MetaServiceImpl::update_delete_bitmap(google::protobuf::RpcController* cont
             if (err != TxnErrorCode::TXN_OK) {
                 code = cast_as<ErrCategory::CREATE>(err);
                 msg = "failed to init txn";
+                g_bvar_ms_update_delete_bitmap_bytes.put(instance_id, total_txn_put_bytes);
                 return;
             }
             if (!without_lock) {
@@ -2515,6 +2518,9 @@ void MetaServiceImpl::update_delete_bitmap(google::protobuf::RpcController* cont
     total_txn_put_bytes += txn->put_bytes();
     total_txn_size += txn->approximate_bytes();
     total_txn_count++;
+
+    g_bvar_ms_update_delete_bitmap_bytes.put(instance_id, total_txn_put_bytes);
+
     if (err != TxnErrorCode::TXN_OK) {
         if (err == TxnErrorCode::TXN_CONFLICT) {
             g_bvar_delete_bitmap_lock_txn_put_conflict_counter << 1;
@@ -2629,6 +2635,7 @@ void MetaServiceImpl::get_delete_bitmap(google::protobuf::RpcController* control
                     code = cast_as<ErrCategory::CREATE>(err);
                     ss << "failed to init txn, retry=" << retry << ", internal round=" << round;
                     msg = ss.str();
+                    g_bvar_ms_get_delete_bitmap_bytes.put(instance_id, delete_bitmap_byte);
                     return;
                 }
                 if (test) {
@@ -2648,6 +2655,7 @@ void MetaServiceImpl::get_delete_bitmap(google::protobuf::RpcController* control
                    << ", ret=" << err;
                 msg = ss.str();
                 g_bvar_get_delete_bitmap_fail_counter << 1;
+                g_bvar_ms_get_delete_bitmap_bytes.put(instance_id, delete_bitmap_byte);
                 return;
             }
 
@@ -2692,6 +2700,7 @@ void MetaServiceImpl::get_delete_bitmap(google::protobuf::RpcController* control
                 msg = ss.str();
                 LOG(WARNING) << msg;
                 g_bvar_get_delete_bitmap_fail_counter << 1;
+                g_bvar_ms_get_delete_bitmap_bytes.put(instance_id, delete_bitmap_byte);
                 return;
             }
             round++;
@@ -2705,6 +2714,7 @@ void MetaServiceImpl::get_delete_bitmap(google::protobuf::RpcController* control
     LOG(INFO) << "finish get delete bitmap for tablet=" << tablet_id
               << ", delete_bitmap_num=" << delete_bitmap_num
               << ", delete_bitmap_byte=" << delete_bitmap_byte;
+    g_bvar_ms_get_delete_bitmap_bytes.put(instance_id, delete_bitmap_byte);
 
     if (request->has_idx()) {
         std::unique_ptr<Transaction> txn;