CPU information

When you launch nmon in the terminal, it will display following home screen:

Besides usage tip, the screen mainly show the CPU information of current system. The CPU information is obtained from /proc/cpuinfo file:

# cat /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 23
model name      : Intel(R) Core(TM)2 Duo CPU     P8700  @ 2.53GHz
stepping        : 10
microcode       : 0xa07
cpu MHz         : 1596.311
cache size      : 3072 KB
physical id     : 0
......

and lscpu command output:

void lscpu_init()
{
    ......

    if (lscpu_available == 1)
    return;
    pop = popen("/usr/bin/lscpu 2>/dev/null", "r");
    if (pop != NULL) {
        ......
    }
}

But in fact, lscpu command also gets value from /proc/cpuinfo (please refer code).

The ProcessorChips is equivalent to lscpu output's Sockets, which identifies the number of "physical CPUs"; PhyscalCores is equivalent to lscpu output's Cores; Hyperthreads to Thrds and VirtualCPUs to CPU.VirtualCPUs is also named as "logical CPUs", which is equal to "Sockets Cores Thrds" (2 26 2 = 104).