cpu_stats.c
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/*
* Copyright (C) 1996-1998 by the Board of Trustees
* of Leland Stanford Junior University.
*
* This file is part of the SimOS distribution.
* See LICENSE file for terms of the license.
*
*/
/****************************************************************
* cpu_stats.c
*
* Author: $author$
* Date: $date$
****************************************************************/
#include <sys/time.h>
#include "simutil.h"
#include "simstats.h"
#include "sim_error.h"
#include "cpu_stats.h"
#include "cpu_interface.h"
#include "machine_params.h"
#include "syslimits.h"
CPUStats *cpuStats;
static struct timeval startTime, endTime, newStartTime;
/* Exported functions */
void InitCPUStats(void)
{
cpuStats = (CPUStats *)calloc(TOTAL_CPUS, sizeof(CPUStats));
gettimeofday(&startTime, NULL);
}
void ResetCPUStats(void)
{
bzero((char*)cpuStats, (TOTAL_CPUS * sizeof(CPUStats)));
}
/*****************************************************************
* Print out a subset of the statistics for temporal knowledge of
* behavior.
*****************************************************************/
static struct HoldCPUStats {
SimCounter Icnt;
SimTime cycleCount;
SimTime syncTime;
unsigned int syscalls, interrupts, faults;
} oldstats[SIM_MAXCPUS];
static SimCounter oldTotalIcnt;
static SimTime oldCycleCnt;
static long secondsRun;
void
PrintPeriodicCPUStats(void)
{
int cpuNum;
SimCounter newIcnt;
SimCounter totalIcnt;
SimTime newSyncTime;
SimTime totalSyncTime;
uint newSyscalls, newInterrupts, newFaults;
double cpi;
SimTime cycleCount = CPUVec.CycleCount(0);
totalIcnt = 0;
totalSyncTime = 0;
for (cpuNum = 0; cpuNum < TOTAL_CPUS; cpuNum++) {
struct HoldCPUStats *s = &(oldstats[cpuNum]);
totalIcnt += newIcnt = STATS_VALUE(cpuNum, numInstructions);
totalSyncTime += newSyncTime =
SPIN_LOOP_INST
* (STATS_VALUE(cpuNum, syncStats.llNonZero)
+ STATS_VALUE(cpuNum, syncStats.scFailed));
newSyscalls = STATS_VALUE(cpuNum, numSyscalls) - s->syscalls;
newInterrupts = STATS_VALUE(cpuNum, numInterrupts) - s->interrupts;
newFaults = STATS_VALUE(cpuNum, numFaults) - s->faults;
s->syscalls = STATS_VALUE(cpuNum, numSyscalls);
s->interrupts = STATS_VALUE(cpuNum, numInterrupts);
s->faults = STATS_VALUE(cpuNum, numFaults);
if ((newIcnt - s->Icnt) > 0)
cpi = (double)(cycleCount - s->cycleCount) /
((double)(newIcnt - s->Icnt));
CPUPrint("C%d 0x%08llx CPI %4.2f Sys %lld Int %lld TLB %lld\n",
cpuNum, (Reg64)CPUVec.CurrentPC(cpuNum), cpi, (uint64)newSyscalls,
(uint64)newInterrupts, (uint64)newFaults);
/* Update current statistics for next time */
s->Icnt = newIcnt;
s->cycleCount = cycleCount;
s->syncTime = newSyncTime;
}
/* Now for some simulator statistics */
gettimeofday(&endTime, NULL);
newStartTime = endTime;
if (startTime.tv_usec < endTime.tv_usec) {
endTime.tv_usec -= startTime.tv_usec ;
endTime.tv_sec -= startTime.tv_sec;
} else {
endTime.tv_usec -= startTime.tv_usec;
endTime.tv_usec += 1000000;
endTime.tv_sec -= (startTime.tv_sec-1);
}
secondsRun = (endTime.tv_sec + endTime.tv_usec/1000000);
CPUPrint("CPU Util: %5.3f%% SPEED: %5.3f Kcycles/sec %5.2f KIPS\n",
((100.0 * (totalIcnt - oldTotalIcnt))/TOTAL_CPUS) /
(cycleCount - oldCycleCnt),
((cycleCount - oldCycleCnt)) /
(1000.0*secondsRun),
((totalIcnt - oldTotalIcnt)) /
(1000.0*secondsRun));
startTime = newStartTime;
oldTotalIcnt = totalIcnt;
oldCycleCnt = cycleCount;
}
/*****************************************************************
* PrintCPUStats
*****************************************************************/
static void
PrintCPUStats(void)
{
int cpuNum;
CPUPrint("*********\n");
CPUPrint("CPU stats\n");
CPUPrint("*********\n");
CPUPrint("M_EVENT Total Cycles %lld\n", CPUVec.CycleCount(0));
for (cpuNum=0; cpuNum<TOTAL_CPUS; cpuNum++) {
CPUPrint("M_EVENT_C%d Insts %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, numInstructions));
CPUPrint("M_EVENT_C%d FP-Insts %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, numFPOps));
CPUPrint("M_EVENT_C%d Bdoor Insts %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, numBdoorInsts));
CPUPrint("M_EVENT_C%d Halted Time %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, haltedTime));
CPUPrint("M_EVENT_C%d CPI %5.3f\n", cpuNum,
(double)((double)CPUVec.CycleCount(cpuNum)
/ (double)STATS_VALUE(cpuNum, numInstructions)));
CPUPrint("M_EVENT_C%d LLs %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, syncStats.lls));
CPUPrint("M_EVENT_C%d LLNonZero %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, syncStats.llNonZero));
CPUPrint("M_EVENT_C%d LLStallTime %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, syncStats.llStallTime));
CPUPrint("M_EVENT_C%d SCs %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, syncStats.scs));
CPUPrint("M_EVENT_C%d SCFailed %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, syncStats.scFailed));
CPUPrint("M_EVENT_C%d SCStallTime %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, syncStats.scStallTime));
CPUPrint("M_EVENT_C%d SyncStallTime %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, syncStallTime));
/* Sync Op Statistics */
CPUPrint("M_EVENT_C%d SyncOps %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, syncOps));
CPUPrint("M_EVENT_C%d SyncOpStallTime %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, syncOpStallTime));
/* Prefetching Statistics */
CPUPrint("M_EVENT_C%d Prefetches %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefs));
CPUPrint("M_EVENT_C%d PrefetchL1Hits %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefL1Hits));
CPUPrint("M_EVENT_C%d PrefetchL2Hits %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefL2Hits));
CPUPrint("M_EVENT_C%d PrefetchMerges %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefMerges));
CPUPrint("M_EVENT_C%d PrefetchUpgrades %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefUpgrades));
CPUPrint("M_EVENT_C%d PrefetchStalls %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefStalls));
CPUPrint("M_EVENT_C%d PrefetchMHTStall %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefMHTStall));
CPUPrint("M_EVENT_C%d PrefetchMHTStallTime %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefMHTStallTime));
CPUPrint("M_EVENT_C%d PrefetchUpgrades %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefUpgrades));
CPUPrint("M_EVENT_C%d PrefetchTLBMisses %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefTLBMisses));
CPUPrint("M_EVENT_C%d PrefetchExclusives %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXs));
CPUPrint("M_EVENT_C%d PrefetchXL1Hits %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXL1Hits));
CPUPrint("M_EVENT_C%d PrefetchXL2Hits %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXL2Hits));
CPUPrint("M_EVENT_C%d PrefetchXMerges %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXMerges));
CPUPrint("M_EVENT_C%d PrefetchXUpgrades %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXUpgrades));
CPUPrint("M_EVENT_C%d PrefetchXStall %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXStalls));
CPUPrint("M_EVENT_C%d PrefetchXMHTStall %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXMHTStall));
CPUPrint("M_EVENT_C%d PrefetchXMHTStallTime %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXMHTStallTime));
CPUPrint("M_EVENT_C%d PrefetchXUpgrades %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXUpgrades));
CPUPrint("M_EVENT_C%d PrefetchXTLBMisses %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, prefStats.prefXTLBMisses));
/* Write buffer statistics */
CPUPrint("M_EVENT_C%d WriteMHTStall %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, writeBufferStats.writeMHTStall));
CPUPrint("M_EVENT_C%d WriteMHTStallTime %lld\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, writeBufferStats.writeMHTStallTime));
}
}
/*****************************************************************
* PrintSyscallStats
*****************************************************************/
static void
PrintSyscallStats(void)
{
int i;
int cpuNum;
SimCounter syscallCount[MAX_SYSCALL];
CPUPrint("************************\n");
CPUPrint("SYSCALL statistics\n");
CPUPrint("************************\n");
for (i=0; i<MAX_SYSCALL; i++) {
syscallCount[i] = 0;
for (cpuNum=0; cpuNum < TOTAL_CPUS; cpuNum++) {
syscallCount[i] += STATS_VALUE(cpuNum, syscallCount[i]);
}
if (syscallCount[i]) {
CPUPrint("M-SYSCALL %d %lld %s\n", i,
(uint64)syscallCount[i], syscallName[i]);
}
}
}
/*****************************************************************
* PrintCP0Stats
*
*****************************************************************/
static void
PrintCP0Stats(void)
{
#ifndef SOLO
int cpuNum, j;
CPUPrint("********************\n");
CPUPrint("CP0 statistics\n");
CPUPrint("********************\n");
CPUPrint("SOLO doesn't keep CP0 stats\n");
for (cpuNum=0; cpuNum<TOTAL_CPUS; cpuNum++) {
for (j=0; j<MAX_CAUSE; j++) {
CPUPrint("M-EXC %d %lld %s\n", cpuNum,
(uint64)STATS_VALUE(cpuNum, causeCount[j]), causeName[j]);
}
CPUPrint("M-EXC UTLB_RMISS %lld\n", (uint64)STATS_VALUE(cpuNum, utlbCount[2]));
CPUPrint("M-EXC UTLB_WMISS %lld\n", (uint64)STATS_VALUE(cpuNum, utlbCount[3]));
}
#endif
}
void PrintAllCPUStats(void)
{
PrintCPUStats();
PrintSyscallStats();
PrintCP0Stats();
}