| 1 | //===- ActionProfiler.cpp - Profiling Actions *- C++ -*-=====================// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #include "mlir/Debug/Observers/ActionProfiler.h" |
| 10 | #include "mlir/Debug/BreakpointManager.h" |
| 11 | #include "mlir/IR/Action.h" |
| 12 | #include "mlir/Rewrite/PatternApplicator.h" |
| 13 | #include "llvm/Support/Casting.h" |
| 14 | #include "llvm/Support/Threading.h" |
| 15 | #include "llvm/Support/raw_ostream.h" |
| 16 | #include <chrono> |
| 17 | |
| 18 | using namespace mlir; |
| 19 | using namespace mlir::tracing; |
| 20 | |
| 21 | //===----------------------------------------------------------------------===// |
| 22 | // ActionProfiler |
| 23 | //===----------------------------------------------------------------------===// |
| 24 | void ActionProfiler::beforeExecute(const ActionActiveStack *action, |
| 25 | Breakpoint *breakpoint, bool willExecute) { |
| 26 | print(action, phase: "B"); // begin event. |
| 27 | } |
| 28 | |
| 29 | void ActionProfiler::afterExecute(const ActionActiveStack *action) { |
| 30 | print(action, phase: "E"); // end event. |
| 31 | } |
| 32 | |
| 33 | // Print an event in JSON format. |
| 34 | void ActionProfiler::print(const ActionActiveStack *action, |
| 35 | llvm::StringRef phase) { |
| 36 | // Create the event. |
| 37 | std::string str; |
| 38 | llvm::raw_string_ostream event(str); |
| 39 | event << "{"; |
| 40 | event << R"("name": ")"<< action->getAction().getTag() << "\", "; |
| 41 | event << R"("cat": "PERF", )"; |
| 42 | event << R"("ph": ")"<< phase << "\", "; |
| 43 | event << R"("pid": 0, )"; |
| 44 | event << R"("tid": )"<< llvm::get_threadid() << ", "; |
| 45 | auto ts = std::chrono::steady_clock::now() - startTime; |
| 46 | event << R"("ts": )" |
| 47 | << std::chrono::duration_cast<std::chrono::microseconds>(d: ts).count(); |
| 48 | if (phase == "B") { |
| 49 | event << R"(, "args": {)"; |
| 50 | event << R"("desc": ")"; |
| 51 | action->getAction().print(os&: event); |
| 52 | event << "\"}"; |
| 53 | } |
| 54 | event << "}"; |
| 55 | |
| 56 | // Print the event. |
| 57 | std::lock_guard<std::mutex> guard(mutex); |
| 58 | if (printComma) |
| 59 | os << ",\n"; |
| 60 | printComma = true; |
| 61 | os << str; |
| 62 | os.flush(); |
| 63 | } |
| 64 |