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63 lines
1.8 KiB
63 lines
1.8 KiB
6 years ago
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// Copyright (c) 2018 PaddlePaddle Authors. All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "paddle/fluid/imperative/profiler.h"
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#ifdef WITH_GPERFTOOLS
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#include "gperftools/profiler.h"
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#endif
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#include <gflags/gflags.h>
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#include <glog/logging.h>
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#include <mutex> // NOLINT
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#include <thread> // NOLINT
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DEFINE_string(
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tracer_profile_fname, "xxgperf",
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"Profiler filename for imperative tracer, which generated by gperftools."
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"Only valid when compiled `WITH_PROFILER=ON`. Empty if disable.");
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namespace paddle {
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namespace imperative {
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static std::once_flag gTracerProfileOnce;
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#ifdef WITH_GPERFTOOLS
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static bool gTracerProfilerStarted = false;
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#endif
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void StartProfile() {
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if (!FLAGS_tracer_profile_fname.empty()) {
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std::call_once(gTracerProfileOnce, [] {
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#ifdef WITH_GPERFTOOLS
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ProfilerStart(FLAGS_tracer_profile_fname.c_str());
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gTracerProfilerStarted = true;
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#else
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LOG(WARNING) << "Paddle is not compiled with gperftools. "
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"FLAGS_tracer_profile_fname will be ignored";
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#endif
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});
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}
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}
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void StopProfile() {
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#ifdef WITH_GPERFTOOLS
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ProfilerFlush();
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#else
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LOG(WARNING) << "Paddle is not compiled with gperftools. "
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"FLAGS_tracer_profile_fname will be ignored";
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#endif
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}
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} // namespace imperative
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} // namespace paddle
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