diff --git a/mindspore/ccsrc/dataset/engine/connector.h b/mindspore/ccsrc/dataset/engine/connector.h
index cdce592c1b..acd92b4145 100644
--- a/mindspore/ccsrc/dataset/engine/connector.h
+++ b/mindspore/ccsrc/dataset/engine/connector.h
@@ -102,8 +102,10 @@ class Connector {
       RETURN_IF_NOT_OK(cv_.Wait(&lk, [this, worker_id]() { return expect_consumer_ == worker_id; }));
       RETURN_IF_NOT_OK(queues_[pop_from_]->PopFront(result));
       pop_from_ = (pop_from_ + 1) % num_producers_;
+      out_buffers_count_++;
       expect_consumer_ = (expect_consumer_ + 1) % num_consumers_;
     }
+
     cv_.NotifyAll();
     return Status::OK();
   }
@@ -119,6 +121,8 @@ class Connector {
     return (queues_[worker_id]->Add(el));
   }
 
+  auto out_buffers_count() const { return out_buffers_count_.load(); }
+
   // Add an element into the DbConnector without the overhead of synchronization.
   // It may block when the internal queue is full.
   // The element passed to this function will be forwarded into the internal queue.
@@ -138,6 +142,7 @@ class Connector {
     }
     expect_consumer_ = 0;
     pop_from_ = 0;
+    out_buffers_count_ = 0;
     MS_LOG(DEBUG) << "Connector counters reset.";
   }
 
@@ -198,6 +203,7 @@ class Connector {
   // Used in the Pop(), when a thread call pop() but it is not the expect_consumer_.
   std::mutex m_;
   CondVar cv_;
+  std::atomic<std::int64_t> out_buffers_count_ = 0;
 };
 }  // namespace dataset
 }  // namespace mindspore
diff --git a/mindspore/ccsrc/dataset/engine/datasetops/dataset_op.h b/mindspore/ccsrc/dataset/engine/datasetops/dataset_op.h
index c444004b79..370bf6a1bd 100644
--- a/mindspore/ccsrc/dataset/engine/datasetops/dataset_op.h
+++ b/mindspore/ccsrc/dataset/engine/datasetops/dataset_op.h
@@ -222,6 +222,7 @@ class DatasetOp : public std::enable_shared_from_this<DatasetOp> {
 
   // Getter function
   // @return connector size of current op
+
   int32_t ConnectorSize() const {
     if (!inlined()) {
       return out_connector_->size();
@@ -230,6 +231,10 @@ class DatasetOp : public std::enable_shared_from_this<DatasetOp> {
     return ChildOpConnectorSize();
   }
 
+  int64_t ConnectorOutBufferCount() const {
+    return out_connector_ == nullptr ? int64_t(-1) : static_cast<int64_t>(out_connector_->out_buffers_count());
+  }
+
   // Getter function
   // @return connector size of current op
   int32_t ConnectorCapacity() const {
diff --git a/mindspore/ccsrc/dataset/engine/db_connector.h b/mindspore/ccsrc/dataset/engine/db_connector.h
index b1fdd14ab6..54909f51ba 100644
--- a/mindspore/ccsrc/dataset/engine/db_connector.h
+++ b/mindspore/ccsrc/dataset/engine/db_connector.h
@@ -83,6 +83,7 @@ class DbConnector : public Connector<std::unique_ptr<DataBuffer>> {
         expect_consumer_ = (expect_consumer_ + 1) % num_consumers_;
       }
     }
+    out_buffers_count_++;
     cv_.NotifyAll();
     return Status::OK();
   }
diff --git a/mindspore/ccsrc/dataset/engine/execution_tree.h b/mindspore/ccsrc/dataset/engine/execution_tree.h
index e1c5e8ff54..b0391bf77b 100644
--- a/mindspore/ccsrc/dataset/engine/execution_tree.h
+++ b/mindspore/ccsrc/dataset/engine/execution_tree.h
@@ -88,8 +88,10 @@ class ExecutionTree {
 
     bool operator!=(const Iterator &rhs) { return nodes_[ind_] != rhs.nodes_[rhs.ind_]; }
 
+    int32_t NumNodes() { return nodes_.size(); }
+
    private:
-    int ind_;                                        // the cur node our Iterator points to
+    int32_t ind_;                                    // the cur node our Iterator points to
     std::vector<std::shared_ptr<DatasetOp>> nodes_;  // store the nodes in post order
     void PostOrderTraverse(const std::shared_ptr<DatasetOp> &);
   };
diff --git a/mindspore/ccsrc/dataset/engine/perf/CMakeLists.txt b/mindspore/ccsrc/dataset/engine/perf/CMakeLists.txt
index 0b67469d2d..e611add983 100644
--- a/mindspore/ccsrc/dataset/engine/perf/CMakeLists.txt
+++ b/mindspore/ccsrc/dataset/engine/perf/CMakeLists.txt
@@ -3,4 +3,6 @@ add_library(engine-perf OBJECT
     monitor.cc
     device_queue_tracing.cc
     connector_size.cc
-    dataset_iterator_tracing.cc)
+    dataset_iterator_tracing.cc
+    connector_throughput.cc
+        )
diff --git a/mindspore/ccsrc/dataset/engine/perf/connector_size.cc b/mindspore/ccsrc/dataset/engine/perf/connector_size.cc
index 862ec51c49..0bd2754075 100644
--- a/mindspore/ccsrc/dataset/engine/perf/connector_size.cc
+++ b/mindspore/ccsrc/dataset/engine/perf/connector_size.cc
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 #include "dataset/engine/perf/connector_size.h"
-
 #include <algorithm>
 #include <fstream>
 #include <memory>
diff --git a/mindspore/ccsrc/dataset/engine/perf/connector_size.h b/mindspore/ccsrc/dataset/engine/perf/connector_size.h
index 6840ffe244..2584289fb4 100644
--- a/mindspore/ccsrc/dataset/engine/perf/connector_size.h
+++ b/mindspore/ccsrc/dataset/engine/perf/connector_size.h
@@ -13,8 +13,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef MINDSPORE_QUEUE_DEPTH_H
-#define MINDSPORE_QUEUE_DEPTH_H
+#ifndef DATASET_CONNECTOR_SIZE_H
+#define DATASET_CONNECTOR_SIZE_H
 
 #include <string>
 #include <vector>
@@ -50,7 +50,7 @@ class ConnectorSize : public Sampling {
   // This function samples the connector size of every nodes within the ExecutionTree
   Status Sample() override;
 
-  std::string Name() const override { return kDeviceQueueTracingName; };
+  std::string Name() const override { return kConnectorSizeSamplingName; }
 
   // Save sampling data to file
   // @return Status - The error code return
@@ -65,6 +65,8 @@ class ConnectorSize : public Sampling {
   ExecutionTree *tree_ = nullptr;          // ExecutionTree pointer
   ConnectorSizeSampleTable sample_table_;  // Dataset structure to store all samples of connector size sampling
 };
+
 }  // namespace dataset
 }  // namespace mindspore
-#endif  // MINDSPORE_QUEUE_DEPTH_H
+
+#endif  // DATASET_CONNECTOR_SIZE_H
diff --git a/mindspore/ccsrc/dataset/engine/perf/connector_throughput.cc b/mindspore/ccsrc/dataset/engine/perf/connector_throughput.cc
new file mode 100644
index 0000000000..4fd59de390
--- /dev/null
+++ b/mindspore/ccsrc/dataset/engine/perf/connector_throughput.cc
@@ -0,0 +1,109 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <fstream>
+#include <iterator>
+#include <algorithm>
+#include <memory>
+#include <string>
+#include <nlohmann/json.hpp>
+#include "dataset/engine/perf/connector_throughput.h"
+#include "dataset/engine/execution_tree.h"
+#include "dataset/util/path.h"
+
+namespace mindspore {
+namespace dataset {
+
+// temporary helper
+int ConnectorThroughput::InitNodes() {
+  auto it = (*tree_).begin();
+  return it.NumNodes();
+}
+// Sample action
+Status ConnectorThroughput::Sample() {
+  std::vector<int64_t> out_buffer_count_row(n_nodes_);
+  std::vector<double> throughput_row(n_nodes_);
+  TimePoint cur_time;  // initialised inside the loop, used outside the loop to update prev sample time.
+  auto col = 0;
+  for (const auto &node : *tree_) {
+    auto cur_out_buffer_count = node.ConnectorOutBufferCount();
+    out_buffer_count_row[col] = cur_out_buffer_count;
+    auto sz = timestamps_.size();
+    cur_time = std::chrono::steady_clock::now();
+    auto _dt = std::chrono::duration_cast<std::chrono::microseconds>(timestamps_[0][sz - 1] - timestamps_[0][sz - 2]);
+    auto dt = std::chrono::duration<double>(_dt).count();
+    auto prev_out_buffer_count = out_buffer_count_table_[col][out_buffer_count_table_.size() - 1];
+    if (dt != 0) {
+      auto thr = (cur_out_buffer_count - prev_out_buffer_count) / (1000 * dt);
+      throughput_row[col] = thr;
+    } else {
+      throughput_row[col] = -1;
+    }
+    col++;
+  }
+  std::vector<TimePoint> v = {cur_time};  // temporary fix
+  timestamps_.AddSample(v);
+  // Push new row of sample
+  out_buffer_count_table_.AddSample(out_buffer_count_row);
+  throughput_.AddSample(throughput_row);
+  return Status::OK();
+}
+
+json ConnectorThroughput::ParseOpInfo(const DatasetOp &node, const std::vector<double> &thr) {
+  auto children = node.Children();
+  std::vector<int32_t> children_id;
+  std::transform(children.begin(), children.end(), std::back_inserter(children_id),
+                 [](std::shared_ptr<DatasetOp> op) -> int32_t { return op->id(); });
+  json json_node;
+  json_node["op_id"] = node.id();
+  json_node["op_type"] = node.Name();
+  json_node["num_workers"] = node.num_workers();
+  json metrics;
+  metrics["output_queue"] = {{"throughput", thr}};
+
+  json_node["metrics"] = metrics;
+  if (!children_id.empty()) {
+    json_node["children"] = children_id;
+  }
+
+  return json_node;
+}
+
+// Save profiling data to file
+Status ConnectorThroughput::SaveToFile() {
+  std::ofstream os(file_path_);
+  json output;
+  output["sampling_interval"] = 10;
+  // Traverse the ExecutionTree for JSON node generation
+  int col = 0;
+  for (auto &node : *tree_) {
+    std::vector<double> throughput;
+    for (auto i = 0; i < throughput_.size(); i++) {
+      throughput.push_back(throughput_[col][i]);
+    }
+    json json_node = ParseOpInfo(node, throughput);
+    output["op_info"].push_back(json_node);
+    col++;
+  }
+  os << output;
+  return Status::OK();
+}
+Status ConnectorThroughput::Init(const std::string &dir_path, const std::string &device_id) {
+  file_path_ = (Path(dir_path) / Path("pipeline_profiling_" + Name() + "_" + device_id + ".json")).toString();
+  return Status::OK();
+}
+}  // namespace dataset
+}  // namespace mindspore
diff --git a/mindspore/ccsrc/dataset/engine/perf/connector_throughput.h b/mindspore/ccsrc/dataset/engine/perf/connector_throughput.h
new file mode 100644
index 0000000000..e873eb8315
--- /dev/null
+++ b/mindspore/ccsrc/dataset/engine/perf/connector_throughput.h
@@ -0,0 +1,100 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DATASET_CONNECTOR_THROUGHPUT_H
+#define DATASET_CONNECTOR_THROUGHPUT_H
+
+#include <vector>
+#include <chrono>
+#include <fstream>
+#include <string>
+#include <nlohmann/json.hpp>
+#include "dataset/engine/perf/profiling.h"
+#include "dataset/engine/perf/perf_data.h"
+#include "dataset/engine/perf/cyclic_array.h"
+#include "dataset/engine/datasetops/dataset_op.h"
+
+using json = nlohmann::json;
+namespace mindspore {
+namespace dataset {
+class ExecutionTree;
+
+// Connector throughput samples the output connector size of each op in the pipeline.
+// For the description of the data structure see perf_buffer.h
+// It support JSON serialization for external usage.
+class ConnectorThroughput : public Sampling {
+  using OutBufferCount = PerfData<CyclicArray<int64_t>>;
+  using Throughput = PerfData<CyclicArray<double>>;
+  using TimePoint = std::chrono::time_point<std::chrono::steady_clock>;
+  using TimeStamps = PerfData<CyclicArray<TimePoint>>;
+
+ public:
+  explicit ConnectorThroughput(ExecutionTree *tree, int64_t max_rows = 1000000)
+      : tree_(tree),
+        max_rows_(max_rows),
+        n_nodes_(InitNodes()),
+        out_buffer_count_table_(OutBufferCount(max_rows_, n_nodes_)),
+        throughput_(Throughput(max_rows_, n_nodes_)),
+        timestamps_(TimeStamps(max_rows_, 1)) {
+    timestamps_.AddSample(std::vector<TimePoint>(1));
+    out_buffer_count_table_.AddSample(std::vector<int64_t>(n_nodes_));
+  }
+  // Driver function for connector size sampling.
+  // This function samples the connector size of every nodes within the ExecutionTree
+  Status Sample() override;
+
+  /* Status TestPrint() override {
+     std::ofstream os("performance_monitor.txt");
+     if (throughput_.size() == 0) {
+       os << "data is empty" << std::endl;
+       return Status::OK();
+     }
+     for (int i = 0; i < throughput_.size(); i++) {
+       for (int j = 0; j < n_nodes_; j++) {
+         os << throughput_[j][i] << " ";
+       }
+       os << std::endl;
+     }
+     return Status::OK();
+   };*/
+
+  // Traverse the tree nodes and count them
+  int InitNodes();
+
+  std::string Name() const override { return name_; };
+
+  // Save sampling data to file
+  // @return Status - The error code return
+  Status SaveToFile() override;
+
+  Status Init(const std::string &dir_path, const std::string &device_id);
+
+  json ParseOpInfo(const DatasetOp &node, const std::vector<double> &thr);
+
+ private:
+  ExecutionTree *tree_ = nullptr;  // ExecutionTree pointer
+  int64_t max_rows_;
+  int32_t n_nodes_;
+  OutBufferCount out_buffer_count_table_;
+  Throughput throughput_;
+  TimeStamps timestamps_;
+  std::string name_ = kConnectorThroughputSamplingName;
+};
+
+}  // namespace dataset
+}  // namespace mindspore
+
+#endif  // DATASET_CONNECTOR_THROUGHPUT_H
diff --git a/mindspore/ccsrc/dataset/engine/perf/cyclic_array.h b/mindspore/ccsrc/dataset/engine/perf/cyclic_array.h
new file mode 100644
index 0000000000..fa60b401c5
--- /dev/null
+++ b/mindspore/ccsrc/dataset/engine/perf/cyclic_array.h
@@ -0,0 +1,197 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DATASET_CYCLIC_ARRAY_H
+#define DATASET_CYCLIC_ARRAY_H
+
+#include <memory>
+#include <algorithm>
+#include <cstring>
+#include <type_traits>
+#include "dataset/core/constants.h"
+
+namespace mindspore {
+namespace dataset {
+
+/// \class CyclicArray "include/cyclic_array.h
+/// \brief This is a container with a contiguous memory layout that pnly keeps N last entries,
+///        when the number of entries exceeds the capacity
+///        Must be preallocated
+template <typename T>
+class CyclicArray {
+ public:
+  using value_type = T;
+  class Iterator {
+    // Add operator[] and make fully compliant with random access iterator
+    // and add a const iterator
+    // add resize(), empty()
+   public:
+    using iterator_category = std::random_access_iterator_tag;
+    using value_type = CyclicArray::value_type;
+    using difference_type = std::ptrdiff_t;
+    using pointer = CyclicArray::value_type *;
+    using reference = CyclicArray::value_type &;
+
+    Iterator() = default;
+
+    Iterator(dsize_t idx, pointer ptr, dsize_t capacity, dsize_t head)
+        : cur_idx_(idx), ptr_(ptr), capacity_(capacity), head_(head) {}
+
+    Iterator(const Iterator &rhs) = default;
+
+    ~Iterator() = default;
+
+    Iterator &operator++() {
+      cur_idx_ = (cur_idx_ + 1) % (capacity_ + 1);
+      return *this;
+    }
+
+    Iterator operator++(int) {
+      Iterator tmp(*this);
+      cur_idx_ = (cur_idx_ + 1) % (capacity_ + 1);
+      return tmp;
+    }
+
+    Iterator &operator--() {
+      cur_idx_ = (cur_idx_ + capacity_) % (capacity_ + 1);
+      return *this;
+    }
+
+    Iterator operator--(int) {
+      Iterator tmp(*this);
+      cur_idx_ = (cur_idx_ + capacity_) % (capacity_ + 1);
+      return tmp;
+    }
+
+    Iterator operator+(dsize_t x) { return Iterator((cur_idx_ + x) % (capacity_ + 1), ptr_, capacity_, head_); }
+
+    Iterator operator-(dsize_t x) {
+      return Iterator((cur_idx_ + (capacity_ + 1 - x)) % (capacity_ + 1), ptr_, capacity_, head_);
+    }
+
+    bool operator<(const Iterator &rhs) {
+      return (head_ + cur_idx_) % (capacity_ + 1) < (rhs.head_ + rhs.cur_idx_) % (capacity_ + 1);
+    }
+
+    bool operator>(const Iterator &rhs) {
+      return (head_ + cur_idx_) % (capacity_ + 1) > (rhs.head_ + rhs.cur_idx_) % (capacity_ + 1);
+    }
+
+    bool operator>=(const Iterator &rhs) {
+      return (head_ + cur_idx_) % (capacity_ + 1) >= (rhs.head_ + rhs.cur_idx_) % (capacity_ + 1);
+    }
+
+    bool operator<=(const Iterator &rhs) {
+      return (head_ + cur_idx_) % (capacity_ + 1) <= (rhs.head_ + rhs.cur_idx_) % (capacity_ + 1);
+    }
+
+    difference_type operator-(const Iterator &rhs) {
+      return (cur_idx_ - rhs.cur_idx_ + capacity_ + 1) % (capacity_ + 1);
+    }
+
+    reference operator*() { return ptr_[cur_idx_]; }
+
+    pointer operator->() { return &(ptr_[cur_idx_]); }
+
+    bool operator==(const Iterator &rhs) { return cur_idx_ == rhs.cur_idx_; }
+
+    bool operator!=(const Iterator &rhs) { return cur_idx_ != rhs.cur_idx_; }
+
+   private:
+    dsize_t cur_idx_;
+    pointer ptr_;
+    dsize_t capacity_;
+    dsize_t head_;
+  };
+
+  /// \brief Default constructor
+  CyclicArray() : buf_(nullptr), head_(0), tail_(0), size_(0), capacity_(0) {}
+
+  /// \brief Constructor
+  /// \param[in] capacity
+  explicit CyclicArray(dsize_t capacity)
+      : buf_(std::make_unique<T[]>(capacity + 1)), head_(0), tail_(0), size_(0), capacity_(capacity) {}
+
+  CyclicArray(const CyclicArray<T> &rhs)
+      : buf_(std::make_unique<T[]>(rhs.capacity_ + 1)),
+        head_(rhs.head_),
+        tail_(rhs.tail_),
+        size_(rhs.size_),
+        capacity_(rhs.capacity_) {
+    std::copy(rhs.begin(), rhs.end(), begin());
+  }
+
+  CyclicArray(CyclicArray &&rhs) = default;
+
+  ~CyclicArray() = default;
+
+  /// \brief Iterator begin()
+  Iterator begin() { return Iterator(head_, buf_.get(), capacity_, head_); }
+
+  /// \brief Iterator end()
+  Iterator end() { return Iterator(tail_, buf_.get(), capacity_, head_); }
+
+  // not really const.
+  Iterator begin() const { return Iterator(head_, buf_.get(), capacity_, head_); }
+
+  Iterator end() const { return Iterator(tail_, buf_.get(), capacity_, head_); }
+
+  /// \brief clear the array. Does not deallocate memory, capacity remains the same
+  void clear() {
+    head_ = 0;
+    tail_ = 0;
+    size_ = 0;
+  }
+
+  /// \brief returns current size
+  dsize_t size() { return size_; }
+
+  /// \brief returns capacity
+  dsize_t capacity() { return capacity_; }
+
+  /// \brief pushes a value
+  /// \param[in] val value
+  void push_back(T val) {
+    buf_[tail_] = val;
+    if (size_ >= capacity_) {
+      (tail_ != capacity_) ? tail_++ : tail_ = 0;
+      (head_ != capacity_) ? head_++ : head_ = 0;
+    } else {
+      tail_++;
+      size_++;
+    }
+  }
+
+  /// \brief returns const reference to an element of the array
+  /// \param[in] idx index of the element
+  /// \param[out] const T& reference to an element of the array
+  const T &operator[](dsize_t idx) const { return buf_[(head_ + idx) % (capacity_ + 1)]; }
+
+  /// \brief returns non-const reference to an element of the array
+  /// \param[in] idx index of the element
+  /// \param[out] T& reference to an element of the array
+  T &operator[](dsize_t idx) { return buf_[(head_ + idx) % (capacity_ + 1)]; }
+
+ private:
+  std::unique_ptr<T[]> buf_;
+  dsize_t head_;
+  dsize_t tail_;
+  dsize_t size_;
+  dsize_t capacity_;
+};
+}  // namespace dataset
+}  // namespace mindspore
+#endif  // DATASET_CYCLIC_ARRAY_H
diff --git a/mindspore/ccsrc/dataset/engine/perf/dataset_iterator_tracing.h b/mindspore/ccsrc/dataset/engine/perf/dataset_iterator_tracing.h
index 00264939fc..129863c6d1 100644
--- a/mindspore/ccsrc/dataset/engine/perf/dataset_iterator_tracing.h
+++ b/mindspore/ccsrc/dataset/engine/perf/dataset_iterator_tracing.h
@@ -13,6 +13,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
 #ifndef MINDSPORE_DATASET_ITERATOR_TRACING_H
 #define MINDSPORE_DATASET_ITERATOR_TRACING_H
 
diff --git a/mindspore/ccsrc/dataset/engine/perf/monitor.cc b/mindspore/ccsrc/dataset/engine/perf/monitor.cc
index c9dce004b5..8a0d682b81 100644
--- a/mindspore/ccsrc/dataset/engine/perf/monitor.cc
+++ b/mindspore/ccsrc/dataset/engine/perf/monitor.cc
@@ -28,7 +28,6 @@ Monitor::Monitor(ExecutionTree *tree) : tree_(tree) {
   max_samples_ = 0;
   cur_row_ = 0;
 }
-
 Status Monitor::operator()() {
   // Register this thread with TaskManager to receive proper interrupt signal.
   TaskManager::FindMe()->Post();
diff --git a/mindspore/ccsrc/dataset/engine/perf/monitor.h b/mindspore/ccsrc/dataset/engine/perf/monitor.h
index 2a482a6ad7..8b4245db8e 100644
--- a/mindspore/ccsrc/dataset/engine/perf/monitor.h
+++ b/mindspore/ccsrc/dataset/engine/perf/monitor.h
@@ -29,6 +29,7 @@ class ExecutionTree;
 class Monitor {
  public:
   // Monitor object constructor
+
   explicit Monitor(ExecutionTree *tree);
 
   Monitor() = default;
diff --git a/mindspore/ccsrc/dataset/engine/perf/perf_data.h b/mindspore/ccsrc/dataset/engine/perf/perf_data.h
new file mode 100644
index 0000000000..a201d705ea
--- /dev/null
+++ b/mindspore/ccsrc/dataset/engine/perf/perf_data.h
@@ -0,0 +1,88 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef DATASET_PERF_DATA_H
+#define DATASET_PERF_DATA_H
+
+#include <vector>
+#include "dataset/core/constants.h"
+
+namespace mindspore {
+namespace dataset {
+
+// PerfData is a convenience class to record and store the data produced by Monitor
+// and represents a 2D column major table with every column storing samples
+// for an operator. The number of rows equals to the number of samples,
+// the number of columns equals to the number of operators.
+// The capacity is determined on construction and cannot be changed.
+// ColumnType can be std::vector or CyclicArray. In case of the latter data can be added
+// indefinitely without the risk of overflowing otherwise the capacity must not be exceeded.
+// Given PerfData pd(n_rows, n_cols) an element in the column i and row j can be accessed as
+// pd[i][j]
+
+template <typename ColumnType>
+class PerfData {
+ public:
+  PerfData() = default;
+  ~PerfData() = default;
+  PerfData(dsize_t max_rows, dsize_t n_cols) : counter_(0), max_rows_(max_rows), n_cols_(n_cols) {
+    for (auto i = 0; i < n_cols_; i++) {
+      data_.push_back(ColumnType(max_rows_));
+    }
+  }
+  PerfData(const PerfData &rhs) = default;
+  PerfData(PerfData &&rhs) = default;
+
+  // Adds a row of data
+  // T must be any container working with range based loops
+  template <typename T>
+  void AddSample(const T &row) {
+    auto i = 0;
+    for (const auto &e : row) {
+      data_[i++].push_back(e);
+    }
+    counter_++;
+  }
+
+  // Fetches a row of data by copy
+  template <typename V = typename ColumnType::value_type>
+  auto Row(dsize_t idx) {
+    std::vector<V> row(n_cols_);
+    for (auto i = 0; i < n_cols_; i++) {
+      row[i] = data_[i][idx];
+    }
+    return row;
+  }
+
+  // returns a column of data
+  ColumnType &operator[](size_t idx) { return data_[idx]; }
+
+  const ColumnType &operator[](size_t idx) const { return data_[idx]; }
+
+  dsize_t size() { return counter_ < max_rows_ ? counter_ : max_rows_; }
+
+  dsize_t capacity() { return max_rows_; }
+
+ private:
+  std::vector<ColumnType> data_;
+  dsize_t counter_;
+  dsize_t max_rows_;
+  int n_cols_;
+};
+
+}  // namespace dataset
+}  // namespace mindspore
+#endif  // DATASET_PERF_DATA_H
diff --git a/mindspore/ccsrc/dataset/engine/perf/profiling.cc b/mindspore/ccsrc/dataset/engine/perf/profiling.cc
index 4786b8dd69..66f27c46ba 100644
--- a/mindspore/ccsrc/dataset/engine/perf/profiling.cc
+++ b/mindspore/ccsrc/dataset/engine/perf/profiling.cc
@@ -14,7 +14,6 @@
  * limitations under the License.
  */
 #include "dataset/engine/perf/profiling.h"
-
 #include <sys/time.h>
 #include <cstdlib>
 #include <fstream>
@@ -23,6 +22,7 @@
 #include "dataset/engine/perf/monitor.h"
 #include "dataset/engine/perf/device_queue_tracing.h"
 #include "dataset/engine/perf/connector_size.h"
+#include "dataset/engine/perf/connector_throughput.h"
 #include "dataset/engine/perf/dataset_iterator_tracing.h"
 #include "utils/log_adapter.h"
 
@@ -72,9 +72,11 @@ Status ProfilingManager::Initialize() {
   std::shared_ptr<Tracing> dataset_iterator_tracing = std::make_shared<DatasetIteratorTracing>();
   RETURN_IF_NOT_OK(RegisterTracingNode(dataset_iterator_tracing));
 
-  std::shared_ptr<Sampling> monitor_sampling = std::make_shared<ConnectorSize>(tree_);
-  RETURN_IF_NOT_OK(RegisterSamplingNode(monitor_sampling));
+  std::shared_ptr<Sampling> connector_size_sampling = std::make_shared<ConnectorSize>(tree_);
+  RETURN_IF_NOT_OK(RegisterSamplingNode(connector_size_sampling));
 
+  std::shared_ptr<Sampling> connector_thr_sampling = std::make_shared<ConnectorThroughput>(tree_);
+  RETURN_IF_NOT_OK(RegisterSamplingNode(connector_thr_sampling));
   return Status::OK();
 }
 
@@ -140,14 +142,15 @@ Status ProfilingManager::SaveProfilingData() {
     RETURN_IF_NOT_OK(node.second->SaveToFile());
   }
   MS_LOG(INFO) << "Save profiling data end.";
-
   return Status::OK();
 }
 
-double ProfilingTime::GetCurMilliSecond() {
-  struct timeval tv = {0, 0};
-  (void)gettimeofday(&tv, nullptr);
-  return tv.tv_sec * 1000 + tv.tv_usec / 1000;
+int64_t ProfilingTime::GetCurMilliSecond() {
+  // because cpplint does not allow using namespace
+  using std::chrono::duration_cast;
+  using std::chrono::milliseconds;
+  using std::chrono::steady_clock;
+  return duration_cast<milliseconds>(steady_clock::now().time_since_epoch()).count();
 }
 }  // namespace dataset
 }  // namespace mindspore
diff --git a/mindspore/ccsrc/dataset/engine/perf/profiling.h b/mindspore/ccsrc/dataset/engine/perf/profiling.h
index d0ea91d566..e38c2d5e54 100644
--- a/mindspore/ccsrc/dataset/engine/perf/profiling.h
+++ b/mindspore/ccsrc/dataset/engine/perf/profiling.h
@@ -20,6 +20,7 @@
 #include <vector>
 #include <unordered_map>
 #include <memory>
+#include <chrono>
 #include "dataset/util/status.h"
 
 namespace mindspore {
@@ -28,9 +29,10 @@ namespace dataset {
 class Monitor;
 class ExecutionTree;
 
-const char kDeviceQueueTracingName[] = "Device Queue Tracing";
-const char kDatasetIteratorTracingName[] = "Dataset Iterator Tracing";
-const char kConnectorSizeSamplingName[] = "Connector Size Sampling";
+const char kDeviceQueueTracingName[] = "Device_Queue_Tracing";
+const char kDatasetIteratorTracingName[] = "Dataset_Iterator_Tracing";
+const char kConnectorSizeSamplingName[] = "Connector_Size_Sampling";
+const char kConnectorThroughputSamplingName[] = "Connector_Throughput_Sampling";
 
 // Profiling is a class of basic unit of profiling action
 // This base class encapsulate the serialization output logic
@@ -59,6 +61,8 @@ class Sampling : public Profiling {
  public:
   // Sampling action function. This function will be invoked by performance monitor thread.
   virtual Status Sample() = 0;
+  // virtual Status TestPrint() = 0;
+  virtual ~Sampling() = default;
 };
 
 // Tracing is class of profiling which record samples upon request.
@@ -132,7 +136,7 @@ enum ProfilingTimeSubType {
 
 class ProfilingTime {
  public:
-  static double GetCurMilliSecond();
+  static int64_t GetCurMilliSecond();
 };
 
 }  // namespace dataset
diff --git a/tests/ut/cpp/dataset/CMakeLists.txt b/tests/ut/cpp/dataset/CMakeLists.txt
index 8478c8257e..bfdc2b4cb3 100644
--- a/tests/ut/cpp/dataset/CMakeLists.txt
+++ b/tests/ut/cpp/dataset/CMakeLists.txt
@@ -79,6 +79,8 @@ SET(DE_UT_SRCS
         mask_test.cc
         trucate_pair_test.cc
         concatenate_op_test.cc
+        cyclic_array_test.cc
+        perf_data_test.cc
         )
 
 add_executable(de_ut_tests ${DE_UT_SRCS})
diff --git a/tests/ut/cpp/dataset/cyclic_array_test.cc b/tests/ut/cpp/dataset/cyclic_array_test.cc
new file mode 100644
index 0000000000..746e482439
--- /dev/null
+++ b/tests/ut/cpp/dataset/cyclic_array_test.cc
@@ -0,0 +1,128 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include <iterator>
+#include <algorithm>
+#include "common/common.h"
+#include "common/cvop_common.h"
+#include "gtest/gtest.h"
+#include "securec.h"
+#include "dataset/util/de_error.h"
+#include "dataset/engine/perf/cyclic_array.h"
+#include <chrono>
+
+using namespace mindspore::dataset;
+
+class MindDataTestCyclicArray : public UT::Common {
+ public:
+  MindDataTestCyclicArray() {}
+};
+
+TEST_F(MindDataTestCyclicArray, Test1) {
+  CyclicArray<int> arr(5);
+  EXPECT_EQ(5, arr.capacity());
+  EXPECT_EQ(0, arr.size());
+  arr.push_back(0);
+  EXPECT_EQ(5, arr.capacity());
+  EXPECT_EQ(1, arr.size());
+  EXPECT_EQ(arr[0], 0);
+  arr.push_back(1);
+  EXPECT_EQ(arr[1], 1);
+  for (auto i = 2; i < 5; i++) {
+    arr.push_back(i);
+  }
+  EXPECT_EQ(arr.capacity(), arr.size());
+  EXPECT_EQ(1, arr[1]);
+  EXPECT_EQ(4, arr[4]);
+  arr[4] = 42;
+  EXPECT_EQ(arr[4], 42);
+  auto a = arr[4];
+  EXPECT_EQ(a, 42);
+  arr.push_back(5);
+  EXPECT_EQ(arr[0], 1);
+  EXPECT_EQ(arr[4], 5);
+
+  CyclicArray<int> arr2 = arr;
+  EXPECT_EQ(arr2.capacity(), arr.capacity());
+  EXPECT_EQ(arr2.size(), arr.size());
+  auto last = arr2.end();
+  auto first = arr2.begin();
+  for (auto i = 0; i < arr.size(); i++) {
+    EXPECT_EQ(arr2[i], arr[i]);
+  }
+
+  arr.clear();
+  EXPECT_EQ(arr.size(), 0);
+  arr.push_back(42);
+  arr.push_back(43);
+  EXPECT_EQ(arr.size(), 2);
+  EXPECT_EQ(arr.capacity(), 5);
+  EXPECT_EQ(arr[0], 42);
+  EXPECT_EQ(arr[1], 43);
+  auto arr3 = arr;
+  EXPECT_EQ(arr3.size(), 2);
+  EXPECT_EQ(arr3.capacity(), 5);
+  EXPECT_EQ(arr.size(), 2);
+  EXPECT_EQ(arr.capacity(), 5);
+  EXPECT_EQ(arr[0], arr3[0]);
+  EXPECT_EQ(arr[1], arr3[1]);
+
+  arr.clear();
+  arr.push_back(21);
+  arr.push_back(22);
+  EXPECT_EQ(arr[arr.size() - 1], 22);
+  for (auto i = 23; i < 27; i++) {
+    arr.push_back(i);
+  }
+  EXPECT_EQ(arr[0], 22);
+  EXPECT_EQ(arr[arr.size() - 1], 26);
+}
+
+TEST_F(MindDataTestCyclicArray, TestIterator) {
+  CyclicArray<int> arr(5);
+  for (auto i = 0; i < arr.capacity(); i++) {
+    arr.push_back(i);
+  }
+  arr.push_back(6);
+  arr.push_back(7);
+  auto i = 0;
+  for (auto it = arr.begin(); it != arr.end(); ++it) {
+    EXPECT_EQ(*it, arr[i++]);
+  }
+
+  std::iota(arr.begin(), arr.end(), -4);
+  EXPECT_EQ(arr[0], -4);
+  EXPECT_EQ(arr[4], 0);
+  const auto sz = 1000000;
+  CyclicArray<int> arr2(sz);
+  for (auto i = 0; i < sz - 1; i++) {
+    arr.push_back(0);
+  }
+  const auto val = -500000;
+  std::iota(arr2.begin(), arr2.end() + sz, val);
+  EXPECT_EQ(*arr2.begin(), val);
+  std::random_device rd;
+  std::mt19937 g(rd());
+  std::shuffle(arr2.begin(), arr2.end(), g);
+  std::sort(arr2.begin(), arr2.end(), [](const auto a, const auto b) { return a > b; });
+  EXPECT_EQ(*arr2.begin(), val);
+  const auto new_val = -600000;
+  for (auto i = 0; i < 100; i++) {
+    arr2.push_back(new_val);
+  }
+  EXPECT_EQ(*(--arr2.end()), new_val);
+  std::sort(arr2.begin(), arr2.end(), [](const auto a, const auto b) { return a > b; });
+  EXPECT_EQ(*arr2.begin(), new_val);
+}
diff --git a/tests/ut/cpp/dataset/perf_data_test.cc b/tests/ut/cpp/dataset/perf_data_test.cc
new file mode 100644
index 0000000000..eaa5e85fa1
--- /dev/null
+++ b/tests/ut/cpp/dataset/perf_data_test.cc
@@ -0,0 +1,71 @@
+/**
+ * Copyright 2020 Huawei Technologies Co., Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "common/common.h"
+#include "common/cvop_common.h"
+#include "gtest/gtest.h"
+#include "securec.h"
+#include "dataset/util/de_error.h"
+#include "dataset/engine/perf/cyclic_array.h"
+#include "dataset/engine/perf/perf_data.h"
+
+using namespace mindspore::dataset;
+
+class MindDataTestPerfData : public UT::Common {
+ public:
+  MindDataTestPerfData() {}
+};
+
+TEST_F(MindDataTestPerfData, Test1) {
+  PerfData<std::vector<int>> p1(2, 3);
+  PerfData<CyclicArray<int>> p2(2, 3);
+  EXPECT_EQ(p1.capacity(), p2.capacity());
+  std::vector<int> row = {1, 2, 3};
+  p1.AddSample(row);
+  p2.AddSample(row);
+  EXPECT_EQ(p1.size(), p2.size());
+  p1.AddSample(row);
+  p2.AddSample(row);
+  EXPECT_EQ(p1.size(), p2.size());
+  row = {4, 5, 6};
+  p2.AddSample(row);
+  auto r1 = p2.Row<int>(static_cast<int64_t>(0));
+  for (auto i = 0; i < 3; i++) {
+    EXPECT_EQ(r1[i], i + 1);
+  }
+
+  auto r2 = p2.Row<int>(1);
+  for (auto i = 0; i < 3; i++) {
+    EXPECT_EQ(r2[i], i + 4);
+  }
+
+  EXPECT_EQ(p2[0][1], 4);
+  EXPECT_EQ(p2[1][1], 5);
+  EXPECT_EQ(p2[2][1], 6);
+}
+
+TEST_F(MindDataTestPerfData, Test2) {
+  auto pd = PerfData<CyclicArray<int>>(1000000, 3);
+  auto row = {1, 2, 3};
+  pd.AddSample(row);
+  EXPECT_EQ(pd[0][0], 1);
+  EXPECT_EQ(pd[1][0], 2);
+  EXPECT_EQ(pd[2][0], 3);
+  row = {4, 5, 6};
+  pd.AddSample(row);
+  EXPECT_EQ(pd[0][0], 1);
+  EXPECT_EQ(pd[1][0], 2);
+  EXPECT_EQ(pd[2][0], 3);
+}
\ No newline at end of file
diff --git a/tests/ut/python/dataset/test_profiling.py b/tests/ut/python/dataset/test_profiling.py
index fca0a4c1dc..a4ee68e435 100644
--- a/tests/ut/python/dataset/test_profiling.py
+++ b/tests/ut/python/dataset/test_profiling.py
@@ -23,7 +23,8 @@ FILES = ["../data/dataset/testTFTestAllTypes/test.data"]
 DATASET_ROOT = "../data/dataset/testTFTestAllTypes/"
 SCHEMA_FILE = "../data/dataset/testTFTestAllTypes/datasetSchema.json"
 
-PIPELINE_FILE = "./pipeline_profiling_1.json"
+PIPELINE_FILE_SIZE = "./pipeline_profiling_1.json"
+PIPELINE_FILE_THR = "./pipeline_profiling_Connector_Throughput_Sampling_1.json"
 DATASET_ITERATOR_FILE = "./dataset_iterator_profiling_1.txt"
 
 
@@ -43,8 +44,10 @@ def test_profiling_simple_pipeline():
     for _ in data1:
         pass
 
-    assert os.path.exists(PIPELINE_FILE) is True
-    os.remove(PIPELINE_FILE)
+    assert os.path.exists(PIPELINE_FILE_SIZE) is True
+    os.remove(PIPELINE_FILE_SIZE)
+    assert os.path.exists(PIPELINE_FILE_THR) is True
+    os.remove(PIPELINE_FILE_THR)
     assert os.path.exists(DATASET_ITERATOR_FILE) is True
     os.remove(DATASET_ITERATOR_FILE)
     del os.environ['PROFILING_MODE']
@@ -74,8 +77,10 @@ def test_profiling_complex_pipeline():
     for _ in data3:
         pass
 
-    assert os.path.exists(PIPELINE_FILE) is True
-    os.remove(PIPELINE_FILE)
+    assert os.path.exists(PIPELINE_FILE_SIZE) is True
+    os.remove(PIPELINE_FILE_SIZE)
+    assert os.path.exists(PIPELINE_FILE_THR) is True
+    os.remove(PIPELINE_FILE_THR)
     assert os.path.exists(DATASET_ITERATOR_FILE) is True
     os.remove(DATASET_ITERATOR_FILE)
     del os.environ['PROFILING_MODE']
@@ -103,8 +108,10 @@ def test_profiling_sampling_iterval():
     for _ in data1:
         pass
 
-    assert os.path.exists(PIPELINE_FILE) is True
-    os.remove(PIPELINE_FILE)
+    assert os.path.exists(PIPELINE_FILE_SIZE) is True
+    os.remove(PIPELINE_FILE_SIZE)
+    assert os.path.exists(PIPELINE_FILE_THR) is True
+    os.remove(PIPELINE_FILE_THR)
     assert os.path.exists(DATASET_ITERATOR_FILE) is True
     os.remove(DATASET_ITERATOR_FILE)