processor                 //系统中逻辑处理核的编号。对于多核处理器则可以是物理核、或者使用超线程技术虚拟的逻辑核vendor_id                 //CPU制造商cpu family                //CPU产品系列代号model                     //CPU属于其系列中的哪一代的代号model name                //CPU属于的名字及其编号、标称主频stepping                  //CPU属于制作更新版本cpu MHz                   //CPU的实际使用主频cache size                //CPU二级缓存大小physical id               //单个CPU的标号siblings                  //单个CPU逻辑物理核数core id                   //当前物理核在其所处CPU中的编号，这个编号不一定连续cpu cores                 //该逻辑核所处CPU的物理核数apicid                    //用来区分不同逻辑核的编号，系统中每个逻辑核的此编号必然不同，此编号不一定连续fpu                       //是否具有浮点运算单元（Floating Point Unit）fpu_exception             //是否支持浮点计算异常cpuid level               //执行cpuid指令前，eax寄存器中的值，根据不同的值cpuid指令会返回不同的内容wp                        //表明当前CPU是否在内核态支持对用户空间的写保护（Write Protection）flags                     //当前CPU支持的功能bogomips                  //在系统内核启动时粗略测算的CPU速度（Million Instructions Per Second）clflush size              //每次刷新缓存的大小单位cache_alignment           //缓存地址对齐单位address sizes             //可访问地址空间位数power management          //对能源管理的支持，有以下几个可选支持功能：

fpu: Onboard （x87） Floating Point Unitvme: Virtual Mode Extensionde: Debugging Extensionspse: Page Size Extensionstsc: Time Stamp Counter: support for RDTSC and WRTSC instructionsmsr: Model-Specific Registerspae: Physical Address Extensions: ability to access 64GB of memory; only 4GB can be accessed at a time thoughmce: Machine Check Architecturecx8: CMPXCHG8 instructionapic: Onboard Advanced Programmable Interrupt Controllersep: Sysenter/Sy***it Instructions; SYSENTER is used for jumps to kernel memory during system calls, and SY***IT is used for jumps: back to the user codemtrr: Memory Type Range Registerspge: Page Global Enablemca: Machine Check Architecturecmov: CMOV instructionpat: Page Attribute Tablepse36: 36-bit Page Size Extensions: allows to map 4 MB pages into the first 64GB RAM, used with PSE.pn: Processor Serial-Number; only available on Pentium 3clflush: CLFLUSH instructiondtes: Debug Trace Storeacpi: ACPI via MSRmmx: MultiMedia Extensionfxsr: FXSAVE and FXSTOR instructionssse: Streaming SIMD Extensions. Single instruction multiple data. Lets you do a bunch of the same operation on different pieces of input: in a single clock tick.sse2: Streaming SIMD Extensions-2. More of the same.selfsnoop: CPU self snoopacc: Automatic Clock ControlIA64: IA-64 processor Itanium.ht: HyperThreading. Introduces an imaginary second processor that doesn‘t do much but lets you run threads in the same process a  bit quicker.nx: No Execute bit. Prevents arbitrary code running via buffer overflows.pni: Prescott New Instructions aka. SSE3vmx: Intel Vanderpool hardware virtualization technologysvm: AMD "Pacifica" hardware virtualization technologylm: "Long Mode," which means the chip supports the AMD64 instruction settm: "Thermal Monitor" Thermal throttling with IDLE instructions. Usually hardware controlled in response to CPU temperature.tm2: "Thermal Monitor 2″ Decrease speed by reducing multipler and vcore.est: "Enhanced SpeedStep"

[root@5201351 ~]# cat /proc/cpuinfo |grep "physical id" |sort|uniq |wc -l   //物理cpu的个数[root@5201351 ~]# cat /proc/cpuinfo | grep "cpu cores" |uniq                //cpu的物理核数[root@5201351 ~]# cat /proc/cpuinfo | grep "processor" | wc -l              //cpu的逻辑核数，逻辑核数从编号0开始（使用top按1也可查看）