cpu.rar_cpu_获取CPU_获取cpu信息资源-CSDN文库

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在IT领域，了解和操作硬件资源是至关重要的，特别是中央处理器（CPU）。在这个主题中，我们将深入探讨如何在编程环境中获取CPU的相关信息。标题“cpu.rar_cpu_获取CPU_获取cpu信息”和描述“获取CPU信息函数代码获取CPU信息函数代码”暗示了我们要讨论的是关于获取计算机CPU信息的代码实现。在不同的操作系统中，获取CPU信息的方法会有所不同。例如，在Windows系统中，我们可以使用WMI（Windows Management Instrumentation）来获取这些数据；在Linux系统中，我们通常会通过读取/proc目录下的系统文件来获取信息；在macOS中，可以利用sysctl接口等。让我们来看看Windows环境下的实现。WMI提供了一套丰富的接口，允许开发者查询系统的各种信息，包括CPU。我们可以使用Python的`pywin32`库来访问WMI服务。以下是一个简单的示例： ```python import wmi def get_cpu_info(): c = wmi.WMI() for processor in c.Win32_Processor(): print("Processor Name:", processor.Name) print("Max Clock Speed:", processor.MaxClockSpeed, "MHz") # 其他属性... get_cpu_info() ``` 在Linux环境下，我们可以读取/proc目录下的系统文件。比如，/proc/cpuinfo包含了CPU的各种详细信息。以下是一个用Python读取的例子： ```python def get_linux_cpu_info(): with open('/proc/cpuinfo', 'r') as f: cpu_info = f.read().splitlines() for line in cpu_info: if 'model name' in line: model_name = line.split(':')[1].strip() elif 'cpu MHz' in line: clock_speed = float(line.split(':')[1].strip()) / 1e6 # MHz to GHz # 处理其他感兴趣的信息... print("Model Name:", model_name) print("Clock Speed:", clock_speed, "GHz") ``` 对于macOS，可以使用sysctl命令来获取CPU信息。在Python中，可以使用`subprocess`模块调用这个命令： ```python import subprocess def get_macos_cpu_info(): output = subprocess.check_output(['sysctl', '-n', 'machdep.cpu.brand_string', 'hw.cpufrequency']) lines = output.decode('utf-8').split('\n') model_name = lines[0] clock_speed = int(lines[1]) / 1e6 # kHz to GHz print("Model Name:", model_name) print("Clock Speed:", clock_speed, "GHz") get_macos_cpu_info() ``` 以上代码片段展示了在不同操作系统下获取CPU基本信息的方法，如型号和主频。实际应用中，你可能还需要获取更多其他信息，如核心数、缓存大小、制造商等。这些可以通过扩展上述代码来实现。在压缩包中的"获取CPU信息函数代码.txt"文件中，应当包含了更具体的实现细节。你可以打开该文件查看具体的函数代码，学习如何在你的项目中有效地获取和处理CPU信息。无论你是进行系统监控、性能分析还是其他用途，理解如何获取CPU信息都是基础且关键的一步。

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cpu.rar （1个子文件）

获取CPU信息函数代码.txt 10KB

////////////// H ////////////////// #ifndef _INC_CPUID #define _INC_CPUID #define _CPU_FEATURE_MMX 0x0001 #define _CPU_FEATURE_SSE 0x0002 #define _CPU_FEATURE_SSE2 0x0004 #define _CPU_FEATURE_3DNOW 0x0008 #define _MAX_VNAME_LEN 13 #define _MAX_MNAME_LEN 30 typedef struct _processor_info { char v_name[_MAX_VNAME_LEN]; // vendor name char model_name[_MAX_MNAME_LEN]; // name of model // e.g. Intel Pentium-Pro int family; // family of the processor // e.g. 6 = Pentium-Pro architecture int model; // model of processor // e.g. 1 = Pentium-Pro for family = 6 int stepping; // processor revision number int feature; // processor feature // (same as return value from _cpuid) int os_support; // does OS Support the feature? int checks; // mask of checked bits in feature // and os_support fields } _p_info; #ifdef __cplusplus extern "C" #endif int _cpuid (_p_info *); #endif //////////////////////////// C ///////////////// #include <windows.h> #include "cpuid.h" // These are the bit flags that get set on calling cpuid // with register eax set to 1 #define _MMX_FEATURE_BIT 0x00800000 #define _SSE_FEATURE_BIT 0x02000000 #define _SSE2_FEATURE_BIT 0x04000000 // This bit is set when cpuid is called with // register set to 80000001h (only applicable to AMD) #define _3DNOW_FEATURE_BIT 0x80000000 int IsCPUID() { __try { _asm { xor eax, eax cpuid } } __except (EXCEPTION_EXECUTE_HANDLER) { return 0; } return 1; } /*** * int _os_support(int feature) * - Checks if OS Supports the capablity or not * * Entry: * feature: the feature we want to check if OS supports it. * * Exit: * Returns 1 if OS support exist and 0 when OS doesn't support it. * ****************************************************************/ int _os_support(int feature) { __try { switch (feature) { case _CPU_FEATURE_SSE: __asm { xorps xmm0, xmm0 // executing SSE instruction } break; case _CPU_FEATURE_SSE2: __asm { xorpd xmm0, xmm0 // executing SSE2 instruction } break; case _CPU_FEATURE_3DNOW: __asm { pfrcp mm0, mm0 // executing 3DNow! instruction emms } break; case _CPU_FEATURE_MMX: __asm { pxor mm0, mm0 // executing MMX instruction emms } break; } } __except (EXCEPTION_EXECUTE_HANDLER) { if (_exception_code() == STATUS_ILLEGAL_INSTRUCTION) { return 0; } return 0; } return 1; } /*** * * void map_mname(int, int, const char *, char *) * - Maps family and model to processor name * ****************************************************/ void map_mname(int family, int model, const char *v_name, char *m_name) { // Default to name not known m_name[0] = '\0'; if (!strncmp("AuthenticAMD", v_name, 12)) { switch (family) { // extract family code case 4: // Am486/AM5x86 strcpy (m_name, "AMD Am486"); break; case 5: // K6 switch (model) { // extract model code case 0: case 1: case 2: case 3: strcpy (m_name, "AMD K5"); break; case 6: case 7: strcpy (m_name, "AMD K6"); break; case 8: strcpy (m_name, "AMD K6-2"); break; case 9: case 10: case 11: case 12: case 13: case 14: case 15: strcpy (m_name, "AMD K6-3"); break; } break; case 6: // Athlon // No model numbers are currently defined strcpy (m_name, "AMD ATHLON"); break; } } else if (!strncmp("GenuineIntel", v_name, 12)) { switch (family) { // extract family code case 4: switch (model) { // extract model code case 0: case 1: strcpy (m_name, "INTEL 486DX"); break; case 2: strcpy (m_name, "INTEL 486SX"); break; case 3: strcpy (m_name, "INTEL 486DX2"); break; case 4: strcpy (m_name, "INTEL 486SL"); break; case 5: strcpy (m_name, "INTEL 486SX2"); break; case 7: strcpy (m_name, "INTEL 486DX2E"); break; case 8: strcpy (m_name, "INTEL 486DX4"); break; } break; case 5: switch (model) { // extract model code case 1: case 2: case 3: strcpy (m_name, "INTEL Pentium"); break; case 4: strcpy (m_name, "INTEL Pentium-MMX"); break; } break; case 6: switch (model) { // extract model code case 1: strcpy (m_name, "INTEL Pentium-Pro"); break; case 3: case 5: strcpy (m_name, "INTEL Pentium-II"); break; // actual differentiation depends on cache settings case 6: strcpy (m_name, "INTEL Celeron"); break; case 7: case 8: case 10: strcpy (m_name, "INTEL Pentium-III"); break; // actual differentiation depends on cache settings } break; case 15 | (0x00 << 4): // family 15, extended family 0x00 switch (model) { case 0: strcpy (m_name, "INTEL Pentium-4"); break; } break; } } else if (!strncmp("CyrixInstead", v_name, 12)) { strcpy (m_name, "Cyrix"); } else if (!strncmp("CentaurHauls", v_name, 12)) { strcpy (m_name, "Centaur"); } if (!m_name[0]) { strcpy (m_name, "Unknown"); } } /*** * * int _cpuid (_p_info *pinfo) * * Entry: * * pinfo: pointer to _p_info. * * Exit: * * Returns int with capablity bit set even if pinfo = NULL * ****************************************************/ int _cpuid (_p_info *pinfo) { DWORD dwStandard = 0; DWORD dwFeature = 0; DWORD dwMax = 0; DWORD dwExt = 0; int feature = 0; int os_support = 0; union { char cBuf[12+1]; struct { DWORD dw0; DWORD dw1; DWORD dw2; } s; } Ident; if (!IsCPUID()) { return 0; } _asm { push ebx push ecx push edx // get the vendor string xor eax, eax cpuid mov dwMax, eax mov Ident.s.dw0, ebx mov Ident.s.dw1, edx mov Ident.s.dw2, ecx // get the Standard bits mov eax, 1 cpuid mov dwStandard, eax