64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
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//===--------------------- RetireControlUnitStatistics.h --------*- 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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/// \file
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///
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/// This file defines class RetireControlUnitStatistics: a view that knows how
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/// to print general statistics related to the retire control unit.
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///
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/// Example:
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/// ========
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///
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/// Retire Control Unit - number of cycles where we saw N instructions retired:
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/// [# retired], [# cycles]
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/// 0, 109 (17.9%)
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/// 1, 102 (16.7%)
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/// 2, 399 (65.4%)
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///
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/// Total ROB Entries: 64
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/// Max Used ROB Entries: 35 ( 54.7% )
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/// Average Used ROB Entries per cy: 32 ( 50.0% )
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///
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TOOLS_LLVM_MCA_RETIRECONTROLUNITSTATISTICS_H
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#define LLVM_TOOLS_LLVM_MCA_RETIRECONTROLUNITSTATISTICS_H
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#include "Views/View.h"
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#include "llvm/MC/MCSchedule.h"
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#include <map>
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namespace llvm {
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namespace mca {
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class RetireControlUnitStatistics : public View {
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using Histogram = std::map<unsigned, unsigned>;
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Histogram RetiredPerCycle;
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unsigned NumRetired;
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unsigned NumCycles;
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unsigned TotalROBEntries;
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unsigned EntriesInUse;
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unsigned MaxUsedEntries;
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unsigned SumOfUsedEntries;
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public:
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RetireControlUnitStatistics(const MCSchedModel &SM);
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void onEvent(const HWInstructionEvent &Event) override;
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void onCycleEnd() override;
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void printView(llvm::raw_ostream &OS) const override;
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StringRef getNameAsString() const override {
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return "RetireControlUnitStatistics";
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}
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};
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} // namespace mca
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} // namespace llvm
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#endif
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