352 lines
7.6 KiB
C
352 lines
7.6 KiB
C
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/*++
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Copyright (c) 1990 Microsoft Corporation
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Module Name:
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CalcPerf.c
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Abstract:
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calculate perfoemance statistics
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Author:
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Environment:
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Win32
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Revision History:
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10-20-91 Initial version
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--*/
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#include <nt.h>
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#include <ntrtl.h>
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#include <nturtl.h>
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#include <windows.h>
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#include <assert.h>
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#include "calcperf.h"
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SYSTEM_VDM_INSTEMUL_INFO PerfInfo;
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SYSTEM_VDM_INSTEMUL_INFO PreviousPerfInfo;
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//
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// make the maximum for pages available a "grow only" max. (since the
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// amount of memory in a machine is limited. Set to 1 Mbytes here.
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//
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ULONG PgAvailMax = 16384;
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ULONG PreviousInterruptCount;
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ULONG InterruptCount;
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ULONG
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InitPerfInfo()
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/*++
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Routine Description:
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Initialize data for perf measurements
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Arguments:
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None
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Return Value:
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Number of system processors (0 if error)
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Revision History:
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10-21-91 Initial code
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--*/
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{
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NTSTATUS Status;
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Status = NtQuerySystemInformation(
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SystemVdmInstemulInformation,
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&PerfInfo,
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sizeof(PerfInfo),
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NULL
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);
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if ( !NT_SUCCESS(Status) ) {
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ExitProcess(1);
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}
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PreviousPerfInfo = PerfInfo;
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return(0);
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}
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BOOL
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CalcCpuTime(
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PDISPLAY_ITEM PerfListItem
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)
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/*++
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Routine Description:
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calculate and return %cpu time and time periods
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Arguments:
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None
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Return Value:
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Revision History:
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10-21-91 Initial code
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--*/
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{
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NTSTATUS Status;
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Status = NtQuerySystemInformation(
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SystemVdmInstemulInformation,
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&PerfInfo,
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sizeof(PerfInfo),
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NULL
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);
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if ( !NT_SUCCESS(Status) ) {
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ExitProcess(1);
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}
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PerfListItem[IX_PUSHF].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_PUSHF].TotalTime[0],
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delta(OpcodePUSHF),
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&PerfListItem[IX_PUSHF].Max);
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PerfListItem[IX_POPF].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_POPF].TotalTime[0],
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delta(OpcodePOPF),
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&PerfListItem[IX_POPF].Max);
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PerfListItem[IX_IRET].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_IRET].TotalTime[0],
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delta(OpcodeIRET),
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&PerfListItem[IX_IRET].Max);
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PerfListItem[IX_HLT].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_HLT].TotalTime[0],
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delta(OpcodeHLT),
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&PerfListItem[IX_HLT].Max);
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PerfListItem[IX_CLI].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_CLI].TotalTime[0],
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delta(OpcodeCLI),
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&PerfListItem[IX_CLI].Max);
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PerfListItem[IX_STI].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_STI].TotalTime[0],
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delta(OpcodeSTI),
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&PerfListItem[IX_STI].Max);
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PerfListItem[IX_BOP].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_BOP].TotalTime[0],
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delta(BopCount),
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&PerfListItem[IX_BOP].Max);
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PerfListItem[IX_SEGNOTP].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_SEGNOTP].TotalTime[0],
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delta(SegmentNotPresent),
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&PerfListItem[IX_SEGNOTP].Max);
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PerfListItem[IX_VDMOPCODEF].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_VDMOPCODEF].TotalTime[0],
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delta(VdmOpcode0F),
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&PerfListItem[IX_VDMOPCODEF].Max);
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PerfListItem[IX_INB].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_INB].TotalTime[0],
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delta(OpcodeINB),
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&PerfListItem[IX_INB].Max);
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PerfListItem[IX_INW].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_INW].TotalTime[0],
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delta(OpcodeINW),
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&PerfListItem[IX_INW].Max);
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PerfListItem[IX_OUTB].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_OUTB].TotalTime[0],
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delta(OpcodeOUTB),
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&PerfListItem[IX_OUTB].Max);
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PerfListItem[IX_OUTW].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_OUTW].TotalTime[0],
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delta(OpcodeOUTW),
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&PerfListItem[IX_OUTW].Max);
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PerfListItem[IX_INSW].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_INSW].TotalTime[0],
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delta(OpcodeINSW),
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&PerfListItem[IX_INSW].Max);
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PerfListItem[IX_OUTSB].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_OUTSB].TotalTime[0],
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delta(OpcodeOUTSB),
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&PerfListItem[IX_OUTSB].Max);
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PerfListItem[IX_OUTSW].ChangeScale = UpdatePerfInfo(
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&PerfListItem[IX_OUTSW].TotalTime[0],
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delta(OpcodeOUTSW),
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&PerfListItem[IX_OUTSW].Max);
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PreviousPerfInfo = PerfInfo;
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return(TRUE);
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}
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BOOL
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UpdatePerfInfo(
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PULONG DataPointer,
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ULONG NewDataValue,
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PULONG OldMaxValue
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)
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/*++
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Routine Description:
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Shift array of DATA_LIST_LENGTH USORTS and add the new value to the
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start of list
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Arguments:
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DataPointer - Pointer to the start of a DATA_LIST_LENGTH array
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NewDataValue - Data element to be added
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OldMaxValue - Scale value
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Return Value:
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TRUE is MaxValue must be increased or decreased
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Revision History:
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10-21-91 Initial code
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--*/
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{
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ULONG Index;
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ULONG ScanMax;
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//
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// Shift DataArray while keeping track of the max value
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//
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//
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// Set temp max to 100 to init a minimum maximum
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//
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ScanMax = 100;
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for (Index=DATA_LIST_LENGTH-1;Index>=1;Index--) {
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DataPointer[Index] = DataPointer[Index-1];
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if (DataPointer[Index] > ScanMax) {
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ScanMax = DataPointer[Index];
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}
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}
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//
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// add and check first value
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//
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DataPointer[0] = NewDataValue;
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if (NewDataValue > ScanMax) {
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ScanMax = NewDataValue;
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}
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//
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// If OldMaxValue = NULL then do not do a max limit check
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//
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if (OldMaxValue == NULL) {
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return(FALSE);
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}
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//
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// If Max values changed then undate the new max
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// value and return TRUE.
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//
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if (ScanMax != *OldMaxValue) {
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*OldMaxValue = ScanMax;
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return(TRUE);
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}
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return(FALSE);
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}
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VOID
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InitListData(
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PDISPLAY_ITEM PerfListItem,
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ULONG NumberOfItems
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)
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/*++
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Routine Description:
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Init all perf data structures
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Arguments:
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PerfListItem - array of all perf categories
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NumberOfItems - Number of items to init
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Return Value:
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Revision History:
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10-21-91 Initial code
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--*/
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{
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ULONG ListIndex,DataIndex;
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for (ListIndex=0;ListIndex<NumberOfItems;ListIndex++) {
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PerfListItem[ListIndex].Max = 100;
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PerfListItem[ListIndex].ChangeScale = FALSE;
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for (DataIndex=0;DataIndex<DATA_LIST_LENGTH;DataIndex++) {
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PerfListItem[ListIndex].TotalTime[DataIndex] = 0;
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PerfListItem[ListIndex].KernelTime[DataIndex] = 0;
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PerfListItem[ListIndex].UserTime[DataIndex] = 0;
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}
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}
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}
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