| //===--------------------- RetireControlUnitStatistics.h --------*- C++ -*-===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| /// \file |
| /// |
| /// This file defines class RetireControlUnitStatistics: a view that knows how |
| /// to print general statistics related to the retire control unit. |
| /// |
| /// Example: |
| /// ======== |
| /// |
| /// Retire Control Unit - number of cycles where we saw N instructions retired: |
| /// [# retired], [# cycles] |
| /// 0, 109 (17.9%) |
| /// 1, 102 (16.7%) |
| /// 2, 399 (65.4%) |
| /// |
| /// Total ROB Entries: 64 |
| /// Max Used ROB Entries: 35 ( 54.7% ) |
| /// Average Used ROB Entries per cy: 32 ( 50.0% ) |
| /// |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef LLVM_TOOLS_LLVM_MCA_RETIRECONTROLUNITSTATISTICS_H |
| #define LLVM_TOOLS_LLVM_MCA_RETIRECONTROLUNITSTATISTICS_H |
| |
| #include "Views/View.h" |
| #include "llvm/MC/MCSchedule.h" |
| #include <map> |
| |
| namespace llvm { |
| namespace mca { |
| |
| class RetireControlUnitStatistics : public View { |
| using Histogram = std::map<unsigned, unsigned>; |
| Histogram RetiredPerCycle; |
| |
| unsigned NumRetired; |
| unsigned NumCycles; |
| unsigned TotalROBEntries; |
| unsigned EntriesInUse; |
| unsigned MaxUsedEntries; |
| unsigned SumOfUsedEntries; |
| |
| public: |
| RetireControlUnitStatistics(const MCSchedModel &SM); |
| |
| void onEvent(const HWInstructionEvent &Event) override; |
| void onCycleEnd() override; |
| void printView(llvm::raw_ostream &OS) const override; |
| }; |
| |
| } // namespace mca |
| } // namespace llvm |
| |
| #endif |