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- Used SysProcessorTimeInfo to calculate the idle time.

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- Fixed the allocation of SysProcessorTimeInfo.  
- Used the process creation time as second unique id.


svn path=/trunk/; revision=14817
This commit is contained in:
Hartmut Birr 2005-04-26 16:28:38 +00:00
parent 946594bdc0
commit c087372392
2 changed files with 30 additions and 22 deletions
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49
rosapps/sysutils/ctm/ctm.c
View file

@ -78,7 +78,7 @@ double dbIdleTime;
double dbKernelTime;
double dbSystemTime;
LARGE_INTEGER liOldIdleTime = {{0,0}};
double OldKernelTime = 0;
LARGE_INTEGER liOldKernelTime = {{0,0}};
LARGE_INTEGER liOldSystemTime = {{0,0}};
PPERFDATA pPerfDataOld = NULL; // Older perf data (saved to establish delta values)
@ -357,9 +357,12 @@ void PerfDataRefresh()
PPERFDATA pPDOld;
TCHAR szTemp[MAX_PATH];
DWORD dwSize;
double CurrentKernelTime;
#ifdef TIMES
LARGE_INTEGER liCurrentKernelTime;
LARGE_INTEGER liCurrentIdleTime;
LARGE_INTEGER liCurrentTime;
#endif
PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION SysProcessorTimeInfo;
SYSTEM_PERFORMANCE_INFORMATION SysPerfInfo;
SYSTEM_TIMEOFDAY_INFORMATION SysTimeInfo;
#ifdef TIMES
@ -367,33 +370,34 @@ void PerfDataRefresh()
status = NtQuerySystemInformation(SystemTimeInformation, &SysTimeInfo, sizeof(SysTimeInfo), 0);
if (status != NO_ERROR)
return;
// Get new CPU's idle time
status = NtQuerySystemInformation(SystemPerformanceInformation, &SysPerfInfo, sizeof(SysPerfInfo), NULL);
if (status != NO_ERROR)
return;
#endif
// Get processor information
SysProcessorTimeInfo = (PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION)malloc(sizeof(PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION) * SystemBasicInfo.NumberProcessors);
status = NtQuerySystemInformation(SystemProcessorTimes, SysProcessorTimeInfo, sizeof(PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION) * SystemBasicInfo.NumberProcessors, &ulSize);
SysProcessorTimeInfo = (PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION)malloc(sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION) * SystemBasicInfo.NumberProcessors);
status = NtQuerySystemInformation(SystemProcessorPerformanceInformation, SysProcessorTimeInfo, sizeof(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION) * SystemBasicInfo.NumberProcessors, &ulSize);
// Get process information
PsaCaptureProcessesAndThreads((PSYSTEM_PROCESS_INFORMATION *)&pBuffer);
#ifdef TIMES
for (CurrentKernelTime=0, Idx=0; Idx<SystemBasicInfo.NumberProcessors; Idx++) {
CurrentKernelTime += Li2Double(SysProcessorTimeInfo[Idx].KernelTime);
CurrentKernelTime += Li2Double(SysProcessorTimeInfo[Idx].DpcTime);
CurrentKernelTime += Li2Double(SysProcessorTimeInfo[Idx].InterruptTime);
liCurrentKernelTime.QuadPart = 0;
liCurrentIdleTime.QuadPart = 0;
for (Idx=0; Idx<SystemBasicInfo.NumberProcessors; Idx++) {
liCurrentKernelTime.QuadPart += SysProcessorTimeInfo[Idx].KernelTime.QuadPart;
liCurrentKernelTime.QuadPart += SysProcessorTimeInfo[Idx].DpcTime.QuadPart;
liCurrentKernelTime.QuadPart += SysProcessorTimeInfo[Idx].InterruptTime.QuadPart;
liCurrentIdleTime.QuadPart += SysProcessorTimeInfo[Idx].IdleTime.QuadPart;
}
// If it's a first call - skip idle time calcs
if (liOldIdleTime.QuadPart != 0) {
// CurrentValue = NewValue - OldValue
dbIdleTime = Li2Double(SysPerfInfo.IdleTime) - Li2Double(liOldIdleTime);
dbKernelTime = CurrentKernelTime - OldKernelTime;
dbSystemTime = Li2Double(SysTimeInfo.CurrentTime) - Li2Double(liOldSystemTime);
liCurrentTime.QuadPart = liCurrentIdleTime.QuadPart - liOldIdleTime.QuadPart;
dbIdleTime = Li2Double(liCurrentTime);
liCurrentTime.QuadPart = liCurrentKernelTime.QuadPart - liOldKernelTime.QuadPart;
dbKernelTime = Li2Double(liCurrentTime);
liCurrentTime.QuadPart = SysTimeInfo.CurrentTime.QuadPart - liOldSystemTime.QuadPart;
dbSystemTime = Li2Double(liCurrentTime);
// CurrentCpuIdle = IdleTime / SystemTime
dbIdleTime = dbIdleTime / dbSystemTime;
@ -405,9 +409,9 @@ void PerfDataRefresh()
}
// Store new CPU's idle and system time
liOldIdleTime = SysPerfInfo.IdleTime;
liOldIdleTime = liCurrentIdleTime;
liOldSystemTime = SysTimeInfo.CurrentTime;
OldKernelTime = CurrentKernelTime;
liOldKernelTime = liCurrentKernelTime;
#endif
// Determine the process count
@ -434,7 +438,9 @@ void PerfDataRefresh()
// so that we can establish delta values
pPDOld = NULL;
for (Idx2=0; Idx2<ProcessCountOld; Idx2++) {
if (pPerfDataOld[Idx2].ProcessId == pSPI->UniqueProcessId) {
if (pPerfDataOld[Idx2].ProcessId == (ULONG)(pSPI->UniqueProcessId) &&
/* check also for the creation time, a new process may have an id of an old one */
pPerfDataOld[Idx2].CreateTime.QuadPart == pSPI->CreateTime.QuadPart) {
pPDOld = &pPerfDataOld[Idx2];
break;
}
@ -456,7 +462,8 @@ void PerfDataRefresh()
#endif
}
pPerfData[Idx].ProcessId = pSPI->UniqueProcessId;
pPerfData[Idx].ProcessId = (ULONG)(pSPI->UniqueProcessId);
pPerfData[Idx].CreateTime = pSPI->CreateTime;
if (pPDOld) {
#ifdef TIMES

1
rosapps/sysutils/ctm/ctm.h
View file

@ -51,6 +51,7 @@ typedef struct _PERFDATA
TIME UserTime;
TIME KernelTime;
LARGE_INTEGER CreateTime;
} PERFDATA, *PPERFDATA;
#define SystemTimeInformation 3