46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
// stats.h
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// Routines for managing statistics about Nachos performance.
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//
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// DO NOT CHANGE -- these stats are maintained by the machine emulation.
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//
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// Copyright (c) 1992-1996 The Regents of the University of California.
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// All rights reserved. See copyright.h for copyright notice and limitation
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// of liability and disclaimer of warranty provisions.
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#include "copyright.h"
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#include "debug.h"
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#include "stats.h"
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//----------------------------------------------------------------------
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// Statistics::Statistics
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// Initialize performance metrics to zero, at system startup.
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//----------------------------------------------------------------------
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Statistics::Statistics()
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{
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totalTicks = idleTicks = systemTicks = userTicks = 0;
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numDiskReads = numDiskWrites = 0;
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numConsoleCharsRead = numConsoleCharsWritten = 0;
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numPageFaults = numPacketsSent = numPacketsRecvd = 0;
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}
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//----------------------------------------------------------------------
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// Statistics::Print
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// Print performance metrics, when we've finished everything
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// at system shutdown.
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//----------------------------------------------------------------------
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void
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Statistics::Print()
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{
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cout << "Ticks: total " << totalTicks << ", idle " << idleTicks;
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cout << ", system " << systemTicks << ", user " << userTicks <<"\n";
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cout << "Disk I/O: reads " << numDiskReads;
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cout << ", writes " << numDiskWrites << "\n";
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cout << "Console I/O: reads " << numConsoleCharsRead;
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cout << ", writes " << numConsoleCharsWritten << "\n";
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cout << "Paging: faults " << numPageFaults << "\n";
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cout << "Network I/O: packets received " << numPacketsRecvd;
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cout << ", sent " << numPacketsSent << "\n";
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}
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