64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
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//===- ActionProfiler.cpp - Profiling Actions *- C++ -*-=====================//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "mlir/Debug/Observers/ActionProfiler.h"
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#include "mlir/Debug/BreakpointManager.h"
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#include "mlir/IR/Action.h"
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#include "mlir/Rewrite/PatternApplicator.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/Threading.h"
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#include "llvm/Support/raw_ostream.h"
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#include <chrono>
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using namespace mlir;
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using namespace mlir::tracing;
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//===----------------------------------------------------------------------===//
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// ActionProfiler
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//===----------------------------------------------------------------------===//
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void ActionProfiler::beforeExecute(const ActionActiveStack *action,
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Breakpoint *breakpoint, bool willExecute) {
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print(action, "B"); // begin event.
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}
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void ActionProfiler::afterExecute(const ActionActiveStack *action) {
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print(action, "E"); // end event.
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}
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// Print an event in JSON format.
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void ActionProfiler::print(const ActionActiveStack *action,
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llvm::StringRef phase) {
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// Create the event.
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std::string str;
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llvm::raw_string_ostream event(str);
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event << "{";
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event << R"("name": ")" << action->getAction().getTag() << "\", ";
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event << R"("cat": "PERF", )";
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event << R"("ph": ")" << phase << "\", ";
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event << R"("pid": 0, )";
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event << R"("tid": )" << llvm::get_threadid() << ", ";
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auto ts = std::chrono::steady_clock::now() - startTime;
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event << R"("ts": )"
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<< std::chrono::duration_cast<std::chrono::microseconds>(ts).count();
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if (phase == "B") {
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event << R"(, "args": {)";
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event << R"("desc": ")";
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action->getAction().print(event);
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event << "\"}";
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}
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event << "}";
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// Print the event.
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std::lock_guard<std::mutex> guard(mutex);
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if (printComma)
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os << ",\n";
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printComma = true;
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os << event.str();
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os.flush();
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}
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