高分请教：怎么获取一个进程占用的系统资源，如：cpu,memory(物理内存, 虚拟内存,以及增量), 内存分页等信息，详见内容
RT：
1、获取指定进程的信息：cpu, mem(物理内存, 虚拟内存,以及增量), pagefile(大小以及增量)等信息
2、获取某个时刻，主机一共消耗的这些信息
不知道有没有直接的API函数，或者通过一些API组合函数来获取这些信息
请不吝赐教，定多分相送
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剖析Windows任务管理器开发原理与实现
http://www.vckbase.com/document/viewdoc/?id=809
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学习1楼资料，谢谢！
[解决办法]
GetPerformanceInfo
[解决办法]
#include "StdAfx.h"#include <windows.h>#include <stdio.h>#include <conio.h>#include <tchar.h>#include <pdh.h>#include "Performance.h"#include "Log.h"#include <vector> using namespace std;#pragma comment ( lib , "Pdh.lib" )bool CPerCounter::m_bIsInitPerCounter = false;bool CWebSiteFlow::m_bIsInitWebSiteFlow = false;bool CWebSiteConnect::m_bIsInitWebSiteConnect = false;CPerformance::CPerformance(void){ m_hQuery = NULL; m_CounterHandle = NULL; OpenQuery();};void CPerformance::OpenQuery(){ PDH_STATUS pdhStatus = PdhOpenQuery (0, 0, &m_hQuery);#ifdef DEBUG_PERFORMANCE if( ERROR_SUCCESS != pdhStatus) { CString strDebug; strDebug.Format("open query failed with :%d",pdhStatus); IBLOG(strDebug); }#endif}CPerformance::~CPerformance(void){ if( m_hQuery ) { PDH_STATUS pdhStatus = PdhCloseQuery (m_hQuery); }};void CPerformance::Init(LPTSTR countPath){ #ifdef DEBUG_PERFORMANCE CString strTest; strTest.Format("CPerformance::Init %s", countPath); IBLOG(strTest);#endif CHAR szPathBuffer[256] = {'\0'}; strcat(szPathBuffer,countPath); PDH_STATUS pdhStatus; pdhStatus = PdhAddCounter (m_hQuery, szPathBuffer, 0, &m_CounterHandle);#ifdef DEBUG_PERFORMANCE if( ERROR_SUCCESS != pdhStatus) { CString strDebug; strDebug.Format("PdhAddCounter %s failed with :%d",countPath,pdhStatus); IBLOG(strDebug); } else { CString strDebug; strDebug.Format("PdhAddCounter %s succeed",countPath); IBLOG(strDebug); }#endif}int CPerformance::GetObjValue(){ int nRetCode; if( m_hQuery ) { PDH_FMT_COUNTERVALUE fmtValue; DWORD ctrType; PDH_STATUS pdhStatus; pdhStatus = PdhCollectQueryData (m_hQuery);#ifdef DEBUG_PERFORMANCE if( ERROR_SUCCESS != pdhStatus) { CString strDebug; strDebug.Format("PdhCollectQueryData failed with :%d",pdhStatus); IBLOG(strDebug); return 0; }#endif pdhStatus = PdhGetFormattedCounterValue (m_CounterHandle, PDH_FMT_DOUBLE, &ctrType, &fmtValue);#ifdef DEBUG_PERFORMANCE if( ERROR_SUCCESS != pdhStatus) { CString strDebug; strDebug.Format("PdhGetFormattedCounterValue failed with :%d",pdhStatus); IBLOG(strDebug); }#endif return nRetCode=(int)fmtValue.doubleValue; } else {#ifdef DEBUG_PERFORMANCE IBLOG("get objvalue with empty query handle");#endif } return 0;}vector<string> CPerformance::GetCountInstance(LPTSTR countObj){ vector<string> vecResult; PDH_STATUS pdhStatus ; LPTSTR szCounterListBuffer = NULL ; DWORD dwCounterListSize = 0; LPTSTR szInstanceListBuffer = NULL ; DWORD dwInstanceListSize = 0; LPTSTR szThisInstance = NULL ; LPTSTR szThisCounter = NULL ; // 首先调用该函数获得接受计数器列表的缓冲区大小 pdhStatus = PdhEnumObjectItems ( NULL , // [IN]数据源，NT4.0必须为NULL NULL , // [IN]机器名。本地机器为NULL countObj , // [IN]计数器名 szCounterListBuffer , // [OUT]接收计数器列表的缓冲区，如果计数器列表长度为0，则该项为空 & dwCounterListSize , // [IN/OUT]设置或接收计数器列表长度 szInstanceListBuffer , // [OUT]接收实例列表的缓冲区，如果计数器列表长度为0，则该项为空 & dwInstanceListSize , // [IN/OUT]设置或接收实例列表长度 PERF_DETAIL_WIZARD , // 获取信息的级别 // PERF_DETAIL_NOVICE 初级级别 // PERF_DETAIL_ADVANCE 高级级别（包含初级） // PERF_DETAIL_EXPERT 专家级别（包含初级和高级） // PERF_DETAIL_WIZARD 系统级别（包含所有级别） 0 ) ; // 最后一个参数系统保留为0 // 根据得到的缓冲区大小分配计数器列表缓冲区内存 szCounterListBuffer = ( LPTSTR ) malloc ( dwCounterListSize * sizeof ( TCHAR ) ) ; // 根据得到的缓冲区大小分配实例名列表缓冲区内存 szInstanceListBuffer = ( LPTSTR ) malloc ( dwInstanceListSize * sizeof ( TCHAR ) ) ;#ifdef DEBUG_PERFORMANCE CString strTest; strTest.Format("dwCounterListSize=%d dwInstanceListSize=%d",dwCounterListSize,dwInstanceListSize); IBLOG(strTest);#endif if( szCounterListBuffer && szInstanceListBuffer) { // 获取指定计数器对象的所有计数器和实例 pdhStatus = PdhEnumObjectItems ( NULL , // [IN]数据源，NT4.0必须为NULL NULL , // [IN]机器名。本地机器为NULL countObj , // [IN]计数器名 szCounterListBuffer , // [OUT]接收计数器列表的缓冲区，如果计数器列表长度为0，则该项为空 & dwCounterListSize , // [IN/OUT]设置或接收计数器列表长度 szInstanceListBuffer , // [OUT]接收实例列表的缓冲区，如果计数器列表长度为0，则该项为空 & dwInstanceListSize , // [IN/OUT]设置或接收实例列表长度 PERF_DETAIL_WIZARD , // 获取信息的级别 0 ) ; // 最后一个参数系统保留为0 if (pdhStatus == ERROR_SUCCESS) { szThisInstance = szInstanceListBuffer ; //szThisCounter = szCounterListBuffer ; for ( ; * szThisInstance != 0 ; szThisInstance += ( lstrlen ( szThisInstance ) + 1 ) ) { // 每循环一次 szThisInstance 就是杖举到的计数器对象 //printf(szThisInstance); string strInstance = szThisInstance; vecResult.push_back(strInstance); } } else {#ifdef DEBUG_PERFORMANCE CString strTest; strTest.Format("PdhEnumObjectItems failed %d",(unsigned int)pdhStatus ); IBLOG(strTest);#endif } } if(szInstanceListBuffer) { free(szInstanceListBuffer); szInstanceListBuffer=NULL; } if( szCounterListBuffer ) { free(szCounterListBuffer); szCounterListBuffer=NULL; } return vecResult;}// 获得主机总物理内存int CPerformance::GetTotalPhysicalMemory(void){ MEMORYSTATUSEX statex; statex.dwLength = sizeof (statex); if (GlobalMemoryStatusEx (&statex)) { return statex.ullTotalPhys/(1024*1024); } return -1; }