diff options
Diffstat (limited to 'lib/arm_profiler')
-rw-r--r-- | lib/arm_profiler/CMakeLists.txt | 23 | ||||
-rw-r--r-- | lib/arm_profiler/include/arm_profiler.hpp | 48 | ||||
-rw-r--r-- | lib/arm_profiler/src/arm_profiler.cpp | 63 |
3 files changed, 134 insertions, 0 deletions
diff --git a/lib/arm_profiler/CMakeLists.txt b/lib/arm_profiler/CMakeLists.txt new file mode 100644 index 0000000..2452a50 --- /dev/null +++ b/lib/arm_profiler/CMakeLists.txt @@ -0,0 +1,23 @@ +# +# Copyright (c) 2021 Arm Limited. All rights reserved. +# +# SPDX-License-Identifier: Apache-2.0 +# +# 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 +# +# 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. +# + +add_library(arm_profiler INTERFACE) + +target_link_libraries(arm_profiler INTERFACE tflu) +target_include_directories(arm_profiler INTERFACE include) +target_sources(arm_profiler INTERFACE src/arm_profiler.cpp) diff --git a/lib/arm_profiler/include/arm_profiler.hpp b/lib/arm_profiler/include/arm_profiler.hpp new file mode 100644 index 0000000..f5206fe --- /dev/null +++ b/lib/arm_profiler/include/arm_profiler.hpp @@ -0,0 +1,48 @@ +/* + * Copyright (c) 2021 Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * 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 + * + * 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 ARM_PROFILER_H +#define ARM_PROFILER_H + +#include "tensorflow/lite/kernels/internal/compatibility.h" +#include "tensorflow/lite/micro/micro_profiler.h" +#include <memory> + +// TODO: Merge this profiler with EthosUprofiler. +namespace tflite { +class ArmProfiler : public MicroProfiler { +public: + ArmProfiler(size_t max_events = 200); + uint32_t BeginEvent(const char *tag); + void EndEvent(uint32_t event_handle); + int32_t GetTotalTicks() const; + +private: + size_t max_events_; + std::unique_ptr<const char *[]> tags_; + std::unique_ptr<int32_t[]> start_ticks_; + std::unique_ptr<int32_t[]> end_ticks_; + + int num_events_ = 0; + + TF_LITE_REMOVE_VIRTUAL_DELETE; +}; + +} // namespace tflite + +#endif diff --git a/lib/arm_profiler/src/arm_profiler.cpp b/lib/arm_profiler/src/arm_profiler.cpp new file mode 100644 index 0000000..c58037f --- /dev/null +++ b/lib/arm_profiler/src/arm_profiler.cpp @@ -0,0 +1,63 @@ +/* + * Copyright (c) 2021 Arm Limited. All rights reserved. + * + * SPDX-License-Identifier: Apache-2.0 + * + * 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 + * + * 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 "tensorflow/lite/kernels/internal/compatibility.h" +#include "tensorflow/lite/micro/micro_error_reporter.h" +#include "tensorflow/lite/micro/micro_time.h" + +#include <string.h> + +#include "arm_profiler.hpp" +#include <inttypes.h> +#include <stdio.h> + +namespace tflite { + +ArmProfiler::ArmProfiler(size_t max_events) : max_events_(max_events) { + tags_ = std::make_unique<const char *[]>(max_events_); + start_ticks_ = std::make_unique<int32_t[]>(max_events_); + end_ticks_ = std::make_unique<int32_t[]>(max_events_); +} + +uint32_t ArmProfiler::BeginEvent(const char *tag) { + if (num_events_ == max_events_) { + tflite::GetMicroErrorReporter()->Report("Profiling event overflow, max: %u events", max_events_); + num_events_ = 0; + } + tags_[num_events_] = tag; + start_ticks_[num_events_] = GetCurrentTimeTicks(); + end_ticks_[num_events_] = start_ticks_[num_events_] - 1; + return num_events_++; +} + +void ArmProfiler::EndEvent(uint32_t event_handle) { + TFLITE_DCHECK(event_handle < max_events_); + end_ticks_[event_handle] = GetCurrentTimeTicks(); + tflite::GetMicroErrorReporter()->Report( + "%s : cycle_cnt : %u cycles", tags_[event_handle], end_ticks_[event_handle] - start_ticks_[event_handle]); +} + +int32_t ArmProfiler::GetTotalTicks() const { + int32_t ticks = 0; + for (int i = 0; i < num_events_; ++i) { + ticks += end_ticks_[i] - start_ticks_[i]; + } + return ticks; +} + +} // namespace tflite |