profiler.h

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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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 TVM_META_SCHEDULE_PROFILER_H_
#define TVM_META_SCHEDULE_PROFILER_H_
 
#include <tvm/ffi/container/array.h>
#include <tvm/ffi/function.h>
#include <tvm/ffi/optional.h>
#include <tvm/ffi/reflection/registry.h>
#include <tvm/ffi/string.h>
#include <tvm/ir/module.h>
#include <tvm/runtime/object.h>
#include <tvm/target/target.h>
 
#include <string>
#include <unordered_map>
#include <utility>
#include <vector>
 
namespace tvm {
namespace meta_schedule {
 
class ScopedTimer {
 public:
  ~ScopedTimer() {
    if (deferred_ != nullptr) {
      deferred_();
    }
  }
 
 private:
  friend class Profiler;
 
  explicit ScopedTimer(ffi::TypedFunction<void()> deferred) : deferred_(deferred) {}
  ffi::TypedFunction<void()> deferred_;
};
 
class ProfilerNode : public runtime::Object {
 public:
  std::unordered_map<std::string, double> stats_sec;
  ffi::Function total_timer;
 
  static void RegisterReflection() {
    // `stats_sec` is not registered
    // `total_timer` is not registered
  }
 
  static constexpr const bool _type_mutable = true;
  TVM_FFI_DECLARE_OBJECT_INFO_FINAL("meta_schedule.Profiler", ProfilerNode, runtime::Object);
 
 public:
  ffi::Map<ffi::String, FloatImm> Get() const;
  ffi::String Table() const;
};
 
class Profiler : public runtime::ObjectRef {
 public:
  Profiler();
  TVM_FFI_DEFINE_OBJECT_REF_METHODS_NOTNULLABLE(Profiler, runtime::ObjectRef, ProfilerNode);
 
  void EnterWithScope();
  void ExitWithScope();
  static ffi::Optional<Profiler> Current();
  static ScopedTimer TimedScope(ffi::String name);
};
 
}  // namespace meta_schedule
}  // namespace tvm
 
#endif  // TVM_META_SCHEDULE_PROFILER_H_