diff --git a/src/common/datatypes/HostAddr.h b/src/common/datatypes/HostAddr.h
index 016a6baa112..1af8ddcfb19 100644
--- a/src/common/datatypes/HostAddr.h
+++ b/src/common/datatypes/HostAddr.h
@@ -40,8 +40,7 @@ struct HostAddr {
 
   std::string toString() const {
     std::stringstream os;
-    os << "\"" << host << "\""
-       << ":" << port;
+    os << "\"" << host << ":" << port << "\"";
     return os.str();
   }
 
diff --git a/src/graph/executor/StorageAccessExecutor.cpp b/src/graph/executor/StorageAccessExecutor.cpp
index bf0cad8efe0..3c0b7cb9b5d 100644
--- a/src/graph/executor/StorageAccessExecutor.cpp
+++ b/src/graph/executor/StorageAccessExecutor.cpp
@@ -148,15 +148,13 @@ StatusOr<std::vector<Value>> StorageAccessExecutor::buildRequestListByVidType(It
   return internal::buildRequestList<std::string>(space, exprCtx, iter, expr, dedup, isCypher);
 }
 
-std::string StorageAccessExecutor::getStorageDetail(
-    optional_field_ref<const std::map<std::string, int32_t> &> ref) const {
-  if (ref.has_value()) {
-    auto content = util::join(*ref, [](auto &iter) -> std::string {
-      return folly::sformat("\n  {}:{}(us)", iter.first, iter.second);
-    });
-    return "{" + content + "}";
+folly::dynamic StorageAccessExecutor::getStorageDetail(
+    const std::map<std::string, int32_t> &profileDetail) const {
+  folly::dynamic profileData = folly::dynamic::object();
+  for (auto &p : profileDetail) {
+    profileData.insert(p.first, folly::sformat("{}(us)", p.second));
   }
-  return "";
+  return profileData;
 }
 
 }  // namespace graph
diff --git a/src/graph/executor/StorageAccessExecutor.h b/src/graph/executor/StorageAccessExecutor.h
index 56c97604e89..4d8d5991955 100644
--- a/src/graph/executor/StorageAccessExecutor.h
+++ b/src/graph/executor/StorageAccessExecutor.h
@@ -139,22 +139,37 @@ class StorageAccessExecutor : public Executor {
     return Status::OK();
   }
 
+  folly::dynamic collectRespProfileData(const storage::cpp2::ResponseCommon &resp,
+                                        const std::tuple<HostAddr, int32_t, int32_t> &info,
+                                        size_t numVertices = 0UL,
+                                        size_t totalRpcTime = 0UL) const {
+    folly::dynamic stat = folly::dynamic::object();
+    stat.insert("address", std::get<0>(info).toString());
+    stat.insert("exec", folly::sformat("{}(us)", std::get<1>(info)));
+    stat.insert("total", folly::sformat("{}(us)", std::get<2>(info)));
+    if (numVertices > 0) {
+      stat.insert("vertices", numVertices);
+    }
+    if (totalRpcTime > 0) {
+      stat.insert("total_rpc_time", folly::sformat("{}(us)", totalRpcTime));
+    }
+    if (resp.latency_detail_us_ref().has_value()) {
+      stat.insert("storage_detail", getStorageDetail(*resp.get_latency_detail_us()));
+    }
+    return stat;
+  }
+
   template <typename RESP>
-  void addStats(RESP &resp, std::unordered_map<std::string, std::string> &stats) const {
+  void addStats(storage::StorageRpcResponse<RESP> &resp,
+                std::unordered_map<std::string, std::string> &stats) const {
     auto &hostLatency = resp.hostLatency();
     for (size_t i = 0; i < hostLatency.size(); ++i) {
-      auto &info = hostLatency[i];
-      stats.emplace(folly::sformat("{} exec/total", std::get<0>(info).toString()),
-                    folly::sformat("{}(us)/{}(us)", std::get<1>(info), std::get<2>(info)));
-      auto detail = getStorageDetail(resp.responses()[i].result_ref()->latency_detail_us_ref());
-      if (!detail.empty()) {
-        stats.emplace("storage_detail", detail);
-      }
+      auto info = collectRespProfileData(resp.responses()[i].get_result(), hostLatency[i]);
+      stats.emplace(folly::sformat("resp[{}]", i), folly::toPrettyJson(info));
     }
   }
 
-  std::string getStorageDetail(
-      apache::thrift::optional_field_ref<const std::map<std::string, int32_t> &> ref) const;
+  folly::dynamic getStorageDetail(const std::map<std::string, int32_t> &profileDetail) const;
 
   bool isIntVidType(const SpaceInfo &space) const;
 
diff --git a/src/graph/executor/algo/ShortestPathBase.cpp b/src/graph/executor/algo/ShortestPathBase.cpp
index f1af092e34c..4493919fe42 100644
--- a/src/graph/executor/algo/ShortestPathBase.cpp
+++ b/src/graph/executor/algo/ShortestPathBase.cpp
@@ -70,15 +70,13 @@ std::vector<Value> ShortestPathBase::handlePropResp(PropRpcResponse&& resps) {
   return vertices;
 }
 
-std::string ShortestPathBase::getStorageDetail(
-    optional_field_ref<const std::map<std::string, int32_t>&> ref) const {
-  if (ref.has_value()) {
-    auto content = util::join(*ref, [](auto& iter) -> std::string {
-      return folly::sformat("{}:{}(us)", iter.first, iter.second);
-    });
-    return "{" + content + "}";
+folly::dynamic ShortestPathBase::getStorageDetail(
+    const std::map<std::string, int32_t>& profileDetail) const {
+  folly::dynamic info = folly::dynamic::object();
+  for (auto& p : profileDetail) {
+    info.insert(p.first, folly::sformat("{}(us)", p.second));
   }
-  return "";
+  return info;
 }
 
 Status ShortestPathBase::handleErrorCode(nebula::cpp2::ErrorCode code, PartitionID partId) const {
@@ -171,9 +169,8 @@ void ShortestPathBase::addStats(RpcResponse& resp,
                                 size_t stepNum,
                                 int64_t timeInUSec,
                                 bool reverse) const {
+  folly::dynamic stats = folly::dynamic::array();
   auto& hostLatency = resp.hostLatency();
-  std::stringstream ss;
-  ss << "{\n";
   for (size_t i = 0; i < hostLatency.size(); ++i) {
     size_t size = 0u;
     auto& result = resp.responses()[i];
@@ -181,45 +178,43 @@ void ShortestPathBase::addStats(RpcResponse& resp,
       size = (*result.vertices_ref()).size();
     }
     auto& info = hostLatency[i];
-    ss << "{" << folly::sformat("{} exec/total/vertices: ", std::get<0>(info).toString())
-       << folly::sformat("{}(us)/{}(us)/{},", std::get<1>(info), std::get<2>(info), size) << "\n"
-       << folly::sformat("total_rpc_time: {}(us)", timeInUSec) << "\n";
-    auto detail = getStorageDetail(result.result.latency_detail_us_ref());
-    if (!detail.empty()) {
-      ss << folly::sformat("storage_detail: {}", detail);
+    folly::dynamic stat = folly::dynamic::object();
+    stat.insert("address", std::get<0>(info).toString());
+    stat.insert("exec", folly::sformat("{}(us)", std::get<1>(info)));
+    stat.insert("total", folly::sformat("{}(us)", std::get<2>(info)));
+    stat.insert("vertices", size);
+    stat.insert("total_rpc_time", folly::sformat("{}(us)", timeInUSec));
+    if (result.result.latency_detail_us_ref().has_value()) {
+      stat.insert("storage_detail", getStorageDetail(*result.result.get_latency_detail_us()));
     }
-    ss << "\n}";
-  }
-  ss << "\n}";
-  if (reverse) {
-    statsLock_.lock();
-    stats_->emplace(folly::sformat("reverse step {}", stepNum), ss.str());
-    statsLock_.unlock();
-  } else {
-    statsLock_.lock();
-    stats_->emplace(folly::sformat("step {}", stepNum), ss.str());
-    statsLock_.unlock();
+    stats.push_back(folly::dynamic::object(folly::sformat("resp[{}]", i), stat));
   }
+
+  auto key = folly::sformat("{}step[{}]", reverse ? "reverse " : "", stepNum);
+  statsLock_.lock();
+  stats_->emplace(key, folly::toPrettyJson(stats));
+  statsLock_.unlock();
 }
 
 void ShortestPathBase::addStats(PropRpcResponse& resp, int64_t timeInUSec) const {
+  folly::dynamic stats = folly::dynamic::array();
   auto& hostLatency = resp.hostLatency();
-  std::stringstream ss;
-  ss << "{\n";
   for (size_t i = 0; i < hostLatency.size(); ++i) {
     auto& info = hostLatency[i];
-    ss << "{" << folly::sformat("{} exec/total: ", std::get<0>(info).toString())
-       << folly::sformat("{}(us)/{}(us),", std::get<1>(info), std::get<2>(info)) << "\n"
-       << folly::sformat("total_rpc_time: {}(us)", timeInUSec) << "\n";
-    auto detail = getStorageDetail(resp.responses()[i].result_ref()->latency_detail_us_ref());
-    if (!detail.empty()) {
-      ss << folly::sformat("storage_detail: {}", detail);
+    folly::dynamic stat = folly::dynamic::object();
+    stat.insert("address", std::get<0>(info).toString());
+    stat.insert("exec", folly::sformat("{}(us)", std::get<1>(info)));
+    stat.insert("total", folly::sformat("{}(us)", std::get<2>(info)));
+    stat.insert("total_rpc_time", folly::sformat("{}(us)", timeInUSec));
+    const auto& result = resp.responses()[i].get_result();
+    if (result.latency_detail_us_ref().has_value()) {
+      stat.insert("storage_detail", getStorageDetail(*result.get_latency_detail_us()));
     }
-    ss << "\n}";
+    stats.push_back(std::move(stat));
   }
-  ss << "\n}";
+
   statsLock_.lock();
-  stats_->emplace(folly::sformat("get_prop "), ss.str());
+  stats_->emplace("get_prop", folly::toPrettyJson(stats));
   statsLock_.unlock();
 }
 
diff --git a/src/graph/executor/algo/ShortestPathBase.h b/src/graph/executor/algo/ShortestPathBase.h
index 23e5c2195ea..cba3d58fc66 100644
--- a/src/graph/executor/algo/ShortestPathBase.h
+++ b/src/graph/executor/algo/ShortestPathBase.h
@@ -74,8 +74,7 @@ class ShortestPathBase {
     return Result::State::kSuccess;
   }
 
-  std::string getStorageDetail(
-      apache::thrift::optional_field_ref<const std::map<std::string, int32_t>&> ref) const;
+  folly::dynamic getStorageDetail(const std::map<std::string, int32_t>& profileDetail) const;
 
  protected:
   const ShortestPath* pathNode_{nullptr};
diff --git a/src/graph/executor/algo/SubgraphExecutor.cpp b/src/graph/executor/algo/SubgraphExecutor.cpp
index 4a05a4a6b75..8c0f01458df 100644
--- a/src/graph/executor/algo/SubgraphExecutor.cpp
+++ b/src/graph/executor/algo/SubgraphExecutor.cpp
@@ -59,14 +59,8 @@ folly::Future<Status> SubgraphExecutor::getNeighbors() {
           if (result.vertices_ref().has_value()) {
             size = (*result.vertices_ref()).size();
           }
-          auto& info = hostLatency[i];
-          otherStats_.emplace(
-              folly::sformat("{} exec/total/vertices", std::get<0>(info).toString()),
-              folly::sformat("{}(us)/{}(us)/{},", std::get<1>(info), std::get<2>(info), size));
-          auto detail = getStorageDetail(result.result.latency_detail_us_ref());
-          if (!detail.empty()) {
-            otherStats_.emplace("storage_detail", detail);
-          }
+          auto info = collectRespProfileData(result.result, hostLatency[i], size);
+          otherStats_.emplace(folly::sformat("resp[{}]", i), folly::toPrettyJson(info));
         }
         vids_.clear();
         return handleResponse(std::move(resp));
diff --git a/src/graph/executor/query/GetDstBySrcExecutor.cpp b/src/graph/executor/query/GetDstBySrcExecutor.cpp
index 446c51a2435..7c7add52263 100644
--- a/src/graph/executor/query/GetDstBySrcExecutor.cpp
+++ b/src/graph/executor/query/GetDstBySrcExecutor.cpp
@@ -55,14 +55,8 @@ folly::Future<Status> GetDstBySrcExecutor::execute() {
           if (result.dsts_ref().has_value()) {
             size = (*result.dsts_ref()).size();
           }
-          auto& info = hostLatency[i];
-          otherStats_.emplace(
-              folly::sformat("{} exec/total/vertices", std::get<0>(info).toString()),
-              folly::sformat("{}(us)/{}(us)/{},", std::get<1>(info), std::get<2>(info), size));
-          auto detail = getStorageDetail(result.result.latency_detail_us_ref());
-          if (!detail.empty()) {
-            otherStats_.emplace("storage_detail", detail);
-          }
+          auto info = collectRespProfileData(result.result, hostLatency[i], size);
+          otherStats_.emplace(folly::sformat("resp[{}]", i), folly::toPrettyJson(info));
         }
         return handleResponse(resp, this->gd_->colNames());
       });
diff --git a/src/graph/executor/query/GetNeighborsExecutor.cpp b/src/graph/executor/query/GetNeighborsExecutor.cpp
index 00694543acb..7dda012c32e 100644
--- a/src/graph/executor/query/GetNeighborsExecutor.cpp
+++ b/src/graph/executor/query/GetNeighborsExecutor.cpp
@@ -69,14 +69,8 @@ folly::Future<Status> GetNeighborsExecutor::execute() {
           if (result.vertices_ref().has_value()) {
             size = (*result.vertices_ref()).size();
           }
-          auto& info = hostLatency[i];
-          otherStats_.emplace(
-              folly::sformat("{} exec/total/vertices", std::get<0>(info).toString()),
-              folly::sformat("{}(us)/{}(us)/{},", std::get<1>(info), std::get<2>(info), size));
-          auto detail = getStorageDetail(result.result.latency_detail_us_ref());
-          if (!detail.empty()) {
-            otherStats_.emplace("storage_detail", detail);
-          }
+          auto info = collectRespProfileData(result.result, hostLatency[i], size);
+          otherStats_.emplace(folly::sformat("resp[{}]", i), folly::toPrettyJson(info));
         }
         return handleResponse(resp);
       });
diff --git a/src/graph/executor/query/TraverseExecutor.cpp b/src/graph/executor/query/TraverseExecutor.cpp
index d9ef3f19a6e..7ff987468b9 100644
--- a/src/graph/executor/query/TraverseExecutor.cpp
+++ b/src/graph/executor/query/TraverseExecutor.cpp
@@ -120,27 +120,18 @@ Expression* TraverseExecutor::selectFilter() {
 }
 
 void TraverseExecutor::addStats(RpcResponse& resp, int64_t getNbrTimeInUSec) {
+  folly::dynamic stepInfo = folly::dynamic::array();
   auto& hostLatency = resp.hostLatency();
-  std::stringstream ss;
-  ss << "{\n";
   for (size_t i = 0; i < hostLatency.size(); ++i) {
     size_t size = 0u;
     auto& result = resp.responses()[i];
     if (result.vertices_ref().has_value()) {
       size = (*result.vertices_ref()).size();
     }
-    auto& info = hostLatency[i];
-    ss << "{" << folly::sformat("{} exec/total/vertices: ", std::get<0>(info).toString())
-       << folly::sformat("{}(us)/{}(us)/{},", std::get<1>(info), std::get<2>(info), size) << "\n"
-       << folly::sformat("total_rpc_time: {}(us)", getNbrTimeInUSec) << "\n";
-    auto detail = getStorageDetail(result.result.latency_detail_us_ref());
-    if (!detail.empty()) {
-      ss << folly::sformat("storage_detail: {}", detail);
-    }
-    ss << "\n}";
+    auto info = collectRespProfileData(result.result, hostLatency[i], size, getNbrTimeInUSec);
+    stepInfo.push_back(folly::dynamic::object(folly::sformat("resp[{}]", i), info));
   }
-  ss << "\n}";
-  otherStats_.emplace(folly::sformat("step {}", currentStep_), ss.str());
+  otherStats_.emplace(folly::sformat("step[{}]", currentStep_), folly::toPrettyJson(stepInfo));
 }
 
 folly::Future<Status> TraverseExecutor::handleResponse(RpcResponse&& resps) {